NZ Glulam Beam Span Tables

Transcription

NZ Glulam Beam Span Tables
STRUCTURAL
TIMBER
EXPERTS
SINCE 1992
NZ Glulam
Beam Span
Tables
0800 832 452 // [email protected] // techlam.co.nz
04 Design Features Statement
- Introduction
- Structural Analysis
10 STRUCTURAL
TIMBER
EXPERTS
SINCE 1992
Appendix A
- Techlam Rafter Properties
- Techlam Ridge Beam Properties
- Techlam Roof and Floor Lintel Properties
20 Appendix B
3
Techlam Rafter Span Tables:
- 42mm Light // Heavy Roof
- 65mm Light // Heavy Roof
- 88mm Light // Heavy Roof 58 Appendix C
Techlam Ridge Beam Span Tables:
- 88mm Light // Heavy Roof
- 135mm Light // Heavy Roof
84 Appendix D
Techlam Roof Lintel Span Tables:
- 88mm Light Roof
- 88mm Heavy Roof
98 Appendix E
Techlam Floor Lintel Span Tables:
- 88mm Light Roof
- 88mm Heavy Roof
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of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
4
St Fe De
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1 Introduction
This submission presents design span
tables for Techlam GL8, GL10 and GL12
grade gluelaminated rafters, ridge beams
and lintels to be used for domestic and residential self contained dwellings.
Strength and deflection limitations under permanent load, live load and wind load are considered.
Typical performance specifications are described.
2 Structural Analysis
2.1 Reference documents:
Structural analysis/design conforms to the following standards:
Table 1. Standards & Codes
NZS1170 [1]
New Zealand Standard: Structural Design Actions.
NZS 3603:1993 [2]
New Zealand Standard: Timber Structures.
NZS 3604:2011 [3]
New Zealand Standard: Timber-framed buildings
2.2 Techlam Beam Properties:
Rafters, ridge beams, roof lintels and floor lintels using GL8, GL10 and GL12 glue-laminated timber are
considered. Beam depths range from 135 to 585mm. The rafter breadths are 42mm, 65mm or 88mm.
The ridge beam breadths are 88mm and 135mm. The roof and floor lintel breadths are 88mm.
Relevant material properties are given for each grade below (See table 2)
Table 2. Material Properties
© Copyright
Grade
Bending strength, fb (MPa)
Modulus of elasticity, E (GPa)
GL8
19
8
GL10
22
10
GL12
25
11.5
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2.3 Beam Loading:
Permanent load (G), live load (Q) or Wind (W) loading is considered for the span tables. The following load cases have been applied:
Table 3. Load Cases
Limit State
Ultimate
Serviceability
Load Case
Description
1.35G
Permanent
1.2+1.5Q
Uniform and concentrated live load
0.9G+W
Wind uplift
1.2G+W
Downward wind
G+ΨLQ
Long-term deflection
G+ΨSQ
Short-term deflection
WS
Wind deflection
2.3.1 Permanent loads, G:
Permanent loads for the roof and floors are given the table below and must include the selfweight of the glue-laminated beams.
Light and heavy roof cladding is considered.
For the floor lintel beams, light external cladding (not exceeding 30kg/m2) and 2.4m stud height is assumed.
2.3.2 Live loads, Q:
Live loads for the roof and floors are given in the table below. These live loads are appropriate for domestic or residential self-contained dwellings.
Table 4. Roof and Floor Dead and Live Load
Element
Permanent Load, G (kPa)
Distributed Live Load, Qu (kPa)
Concentrated Live Load, Qc (KN)
Light Roof
0.3
0.25
1.1
Heavy Roof
0.7
0.25
1.1
Floor
0.6
1.5
1.8
External walls*
0.45
-
-
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*Applied over a 2.4m wall height
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5
2.3.3 Wind loads, W
The range of ultimate design wind velocities from NZS3604:2011 [3] are applied (see Table 5). The ultimate and service wind pressure
is considered for strength and deflection checks respectively. Pressure coefficients (Cp) are in accordance with NZS1170.2 [1].
The worst case upward and downward pressure coefficient for the roof is taken as -0.9 and 0.5 respectively. An upwards pressure
coefficient of -1.6 is applied to eaves.
Table 5. Roof Wind Loads
6
Wind Zone
Ultimate wind speed
Vu (m/s)
Ultimate wind pressure
qu (kPa)
Service wind speed
Vs (m/s)
Service wind pressure
q s (kPa)
Low
32
0.61
26
0.41
Medium
37
0.82
30
0.54
High
44
1.16
36
0.78
Very High
50
1.50
41
1.01
Extra High
55
1.82
45
1.22
2.4 Beam strength limitations
The bending strength is given in Table 2 and in Appendix A. The bending strength is reduced by the strength reduction factor (Φ) and the load
duration factor (k1) for permanent load. The strength reduction factor (Φ) is 0.8. The load duration factor (k1) for different load combinations are
given in Table 6. The parallel support factor (k4) and the size factor (k24) from NZS3603 [2] are conservatively taken as 1.0. It is assumed that
all beams are sufficiently restrained to prevent lateral-torsional buckling, and therefore, the k8 factor from NZS3603 [2] is taken as 1.0.
Further information on the properties of each beam is given in Appendix A.
Table 6. Load Duration Factors
Element
Ridge beam
and roof lintel
© Copyright
Table 6. Load Duration Factors (continued)
Load case
Load duration factor k1
1.35G
0.6
1.2G+1.5Q
1.0
0.9G+W
1.0
1.2G+W
1.0
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
Element
Floor lintel
Load case
Load duration factor k1
1.35G
0.6
1.2G+1.5Q
0.8
0.9G+W
1.0
1.2G+W
1.0
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2.5 Beam deflection limitations
The deflection limits for different loading conditions are given in Table 7. Long term (G+ψlQ), short term (G+ψsQ) and service wind loading (Ws)
deflection limits recommended by NZS1170.0 [1] are applied, which are a ratio of the maximum span, L. In addition, an absolute deflection limit
of 12mm is used for service wind loading (Ws). For the long-term (G+ψlQ), the short-term (G+ψsQ) and service wind (Ws) load cases a creep factor
(k2) of 1.5, 1.0 and 1.0 is applied respectively. Vibration performance requirements have not been considered for floor lintels.
Table 7. Deflection Limitations
Element
Long-term deflection limit
(G+ψ l Q)
Short-term deflection limit
(G+ψ s Q)
Wind limit ( Ws )
Rafters, ridges, beams,
roof lintels, floor lintels
L/400
L/300
L/300 ≤ 12mm
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Figure 1. Ridge Beam Loading
Figure 1. Rafter Loading
2.6 Beam loading arrangements
The loading arrangement for the rafters, ridge beams, roof lintels and floor lintels are described in the Figure 1, 2, 3 & 4 respectively. For the
ridge beam, roof and floor lintels the loaded width (LW) of each beam is taken as the half span of the rafters or joists which run in the orthogonal
direction. The roof loading varies depending on the slope of the roof (α). Two ranges of roof slope are considered; 0 to 25 degrees and 25 to 45
degrees. For the rafters, roof and floor lintels a maximum eve width of 0.6m has been assumed.
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7
Figure 3. Roof Lintel Loading
Figure 4. Floor Lintel Loading
8
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3 Material Requirements
Glue laminated timber is to be grade GL8, GL10 or GL12 New Zealand Radiata Pine as specified in accordance with AS/NZS1328:1998 Glued
Laminated Structural Timber. Timber is to be kiln dried to a moisture content of not greater than 15% at the time of lamination and installation.
Timber is to be for internal use only (fully protected from the weather and inside the building envelope).
All timber treatment is to comply with NZS 3640:2003 and AS/NZS1604.5:2002. To mitigate long-term beam deflection for beams spanning over
3m, a mid-span upwards pre-camber equal to the span length divided by 500 is recommended.
All timber shall be separated from concrete or external timber (such as bearers) using a damp proof membrane.
4 Span tables
The span tables for the rafters, ridge beams, roof lintels and floor lintels are given in Appendix B, C, D and E respectively.
Note, interpolation of the maximum span between adjacent rafter spacing’s or loaded width’s is permissible.
5 Disclaimer
Whilst every care has been taken to ensure that the above span tables are accurate, the authors/mlb Consulting Engineers take no responsibility
for any errors or omissions or for any specifications or work based on its contents. Furthermore, the designer must satisfy themselves that the
design assumptions listed in this guide are appropriate for the beams intended purpose. Refer to mlb Consulting Engineers for further information
regarding the design assumptions associated with these span tables.
6 References
[1] NZS1170.0. (2002). Structural Design Actions - Part 0 - General principles, New Zealand Standards, Wellington.
[2] NZS3603. (1999). Timber Structures Standard, New Zealand Standards, Wellington.
[3] NZS3604. (2011). Timber Framed Buildings. New Zealand Standard, Wellington, New Zealand.
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9
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Laminated timber is a long established structural
solution, providing large spans at a cost effective
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Glulam Beam Span such
Tables, Revision
February 2015
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to other
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GL8 Techlam Rafter Properties
Bending Stress (fb ): Modulus of Elasticity (E): 19MPa
8GPa
Beam Size
(mm)
Depth (d)
(mm)
Breadth (b)
(mm)
Flexural stiffness
EI (x1012 Nmm2 )
Bending strength
Фmn* (kNm)
135x42
135
42
0.07
1.9
180x42
180
42
0.16
3.4
225x42
225
42
0.32
5.4
270x42
270
42
0.55
7.8
315x42
315
42
0.88
10.6
360x42
135x65
360
135
42
65
1.31
0.11
13.8
3.0
180x65
180
65
0.25
5.3
225x65
225
65
0.49
8.3
270x65
270
65
0.85
12.0
315x65
315
65
1.35
16.3
360x65
360
65
2.02
21.3
405x65
405
65
2.88
27.0
450x65
450
65
3.95
33.3
135x88
135
88
0.14
4.1
180x88
180
88
0.34
7.2
225x88
225
88
0.67
11.3
270x88
270
88
1.15
16.3
315x88
315
88
1.83
22.1
360x88
360
88
2.74
28.9
405x88
405
88
3.90
36.6
450x88
450
88
5.35
45.1
*For short-term loads only
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11
GL10 Techlam Rafter Properties
Bending Stress (fb ): Modulus of Elasticity (E): 12
22MPa
10GPa
Beam Size
(mm)
Depth (d)
(mm)
Breadth (b)
(mm)
Flexural stiffness
EI (x1012 Nmm2 )
Bending strength
Фmn* (kNm)
135x42
135
42
0.09
2.2
180x42
180
42
0.20
4.0
225x42
225
42
0.40
6.2
270x42
270
42
0.69
9.0
315x42
315
42
1.09
12.2
360x42
135x65
360
135
42
65
1.63
0.13
16.0
3.5
180x65
180
65
0.32
6.2
225x65
225
65
0.62
9.7
270x65
270
65
1.07
13.9
315x65
315
65
1.69
18.9
360x65
360
65
2.53
24.7
405x65
405
65
3.60
31.3
450x65
450
65
4.94
38.6
135x88
135
88
0.18
4.7
180x88
180
88
0.43
8.4
225x88
225
88
0.84
13.1
270x88
270
88
1.44
18.8
315x88
315
88
2.29
25.6
360x88
360
88
3.42
33.5
405x88
405
88
4.87
42.3
450x88
450
88
6.68
52.3
*For short-term loads only
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of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
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GL12 Techlam Rafter Properties
Bending Stress (fb ): Modulus of Elasticity (E): 25MPa
11.5GPa
Beam Size
(mm)
Depth (d)
(mm)
Breadth (b)
(mm)
Flexural stiffness
EI (x1012 Nmm2 )
Bending strength
Фmn* (kNm)
135x42
180x42
135
180
42
42
0.10
0.23
2.6
4.5
225x42
225
42
0.46
7.1
270x42
270
42
0.79
10.2
315x42
315
42
1.26
13.9
360x42
360
42
1.88
18.1
135x88
180x88
135
180
88
88
0.15
0.36
3.9
7.0
225x88
225
88
0.71
11.0
270x88
270
88
1.23
15.8
315x88
315
88
1.95
21.5
360x88
360
88
2.91
28.1
405x88
405
88
4.14
35.5
450x88
450
88
5.68
43.9
135x88
135
88
0.21
5.3
180x88
180
88
0.49
9.5
225x88
225
88
0.96
14.9
270x88
270
88
1.66
21.4
315x88
315
88
2.64
29.1
360x88
360
88
3.93
38.0
405x88
405
88
5.60
48.1
450x88
450
88
7.68
59.4
*For short-term loads only
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GL8 Techlam Ridge Beam Properties
Bending Stress (fb ): Modulus of Elasticity (E): 14
19MPa
8GPa
Beam Size
(mm)
Depth (d)
(mm)
Breadth (b)
(mm)
Flexural stiffness
EI (x1012 Nmm2 )
Bending strength
Фmn* (kNm)
270x88
270
88
1.15
16.3
315x88
180
88
1.83
22.1
360x88
360
88
2.74
28.9
405x88
405
88
3.90
36.6
450x88
450
88
5.35
45.1
495x88
495
88
7.12
54.6
540x88
540
88
9.24
65.0
585x88
585
88
11.75
76.3
270x135
270
135
1.77
24.9
315x135
315
135
2.81
33.9
360x135
270
135
4.20
44.3
405x135
405
135
5.98
56.1
450x135
450
135
8.20
69.3
495x135
495
135
10.92
83.8
540x135
540
135
14.17
99.7
585x135
585
135
18.02
117.0
*For short-term loads only
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of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
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GL10 Techlam Ridge Beam Properties
Bending Stress (fb ): Modulus of Elasticity (E): 22MPa
10GPa
Beam Size
(mm)
Depth (d)
(mm)
Breadth (b)
(mm)
Flexural stiffness
EI (x1012 Nmm2 )
Bending strength
Фmn* (kNm)
270x88
270
88
1.44
18.8
315x88
315
88
2.29
25.6
360x88
360
88
3.42
33.5
405x88
405
88
4.87
42.3
450x88
450
88
6.68
52.3
495x88
495
88
8.89
63.2
540x88
540
88
11.55
75.3
585x88
585
88
14.68
88.3
270x135
270
135
2.21
28.9
315x135
315
135
3.52
39.3
360x135
360
135
5.25
51.3
405x135
405
135
7.47
65.0
450x135
450
135
10.25
80.2
495x135
495
135
13.64
97.0
540x135
540
135
17.71
115.5
585x135
585
135
22.52
135.5
*For short-term loads only
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15
GL12 Techlam Ridge Beam Properties
Bending Stress (fb ): Modulus of Elasticity (E): 16
25MPa
11.5GPa
Beam Size
(mm)
Depth (d)
(mm)
Breadth (b)
(mm)
Flexural stiffness
EI (x1012 Nmm2 )
Bending strength
Фmn* (kNm)
270x88
270
88
1.66
21.4
315x88
315
88
2.64
29.1
360x88
360
88
3.93
38.0
405x88
405
88
5.60
48.1
450x88
450
88
7.68
59.4
495x88
495
88
10.23
71.9
540x88
540
88
13.28
85.5
585x88
585
88
16.88
100.4
270x135
270
135
2.55
32.8
315x135
315
135
4.04
44.7
360x135
360
135
6.04
58.3
405x135
405
135
8.59
73.8
450x135
450
135
11.79
91.1
495x135
495
135
15.69
110.3
540x135
540
135
20.37
131.2
585x135
585
135
25.90
154.0
*For short-term loads only
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of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
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GL8 Techlam Roof and Floor Lintel Properties
Bending Stress (fb ): Modulus of Elasticity (E): 19MPa
8GPa
Beam Size
(mm)
Depth (d)
(mm)
Breadth (b)
(mm)
Flexural stiffness
EI (x1012 Nmm2 )
Bending strength
Фmn* (kNm)
135x88
135
88
0.14
4.1
180x88
180
88
0.34
7.2
225x88
225
88
0.67
11.3
270x88
270
88
1.15
16.3
315x88
315
88
1.83
22.1
360x88
360
88
2.74
28.9
405x88
405
88
3.90
36.6
450x88
450
88
5.35
45.1
*For short-term loads only
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GL10 Techlam Roof and Floor Lintel Properties
Bending Stress (fb ): Modulus of Elasticity (E): 18
22MPa
10GPa
Beam Size
(mm)
Depth (d)
(mm)
Breadth (b)
(mm)
Flexural stiffness
EI (x1012 Nmm2 )
Bending strength
Фmn* (kNm)
135x88
135
88
0.18
4.7
180x88
180
88
0.43
8.4
225x88
225
88
0.84
13.1
270x88
270
88
1.44
18.8
315x88
315
88
2.29
25.6
360x88
360
88
3.42
33.5
405x88
405
88
4.87
42.3
450x88
450
88
6.68
52.3
*For short-term loads only
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of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
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GL12 Techlam Roof and Floor Lintel Properties
Bending Stress (fb ): Modulus of Elasticity (E): 25MPa
11.5GPa
Beam Size
(mm)
Depth (d)
(mm)
Breadth (b)
(mm)
Flexural stiffness
EI (x1012 Nmm2 )
Bending strength
Фmn* (kNm)
135x88
135
88
0.21
5.3
180x88
180
88
0.49
9.5
225x88
225
88
0.96
14.9
270x88
270
88
1.66
21.4
315x88
315
88
2.64
29.1
360x88
360
88
3.93
38.0
405x88
405
88
5.60
48.1
450x88
450
88
7.68
59.4
*For short-term loads only
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19
Sp Te Ap
an ch p
Ta lam en
bl R d
es a i x
fte B
r
20
Figure B. Rafter Loading
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GL8 (42mm width) Techlam Rafter Span Tables
Beam Size
(mm)
135x42
180x42
225x42
270x42
315x42
360x42
135x42
180x42
225x42
270x42
315x42
360x42
135x42
180x42
225x42
270x42
315x42
360x42
135x42
180x42
225x42
270x42
315x42
360x42
135x42
180x42
225x42
270x42
315x42
360x42
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Wind Zone
(NZS3604)
Low
Medium
High
Very
High
Extra
High
Roof Weight: Light
Roof Pitch, α: 0° to 25°
Rafter Spacing (mm)
400
600
800
900
1200
1500
2000
2500
3000
3500
4000
3950
5390
6380
7310
8210
9070
3950
5020
5940
6810
7640
8450
3690
4580
5420
6210
6970
7710
3410
4300
5080
5820
6540
7220
3210
4100
4850
5560
6240
6900
3540
4720
5760
6610
7420
8200
3540
4540
5360
6150
6900
7630
3250
4140
4900
5610
6300
6970
2980
3880
4590
5260
5910
6530
2800
3700
4380
5020
5640
6230
3210
4290
5360
6150
6900
7630
3210
4220
4990
5720
6420
7100
2960
3850
4560
5220
5870
6480
2710
3610
4270
4900
5500
6070
2550
3400
4080
4670
5250
5800
3090
4120
5150
5970
6700
7410
3090
4100
4850
5560
6240
6900
2840
3740
4420
5070
5690
6290
2610
3470
4150
4750
5340
5900
2450
3270
3960
4540
5090
5630
2810
3740
4680
5560
6240
6890
2810
3740
4510
5170
5810
6420
2580
3440
4120
4720
5300
5860
2370
3160
3860
4420
4970
5490
2220
2970
3680
4220
4740
5240
2610
3480
4340
5210
5900
6520
2610
3480
4270
4890
5490
6070
2400
3200
3890
4460
5010
5540
2200
2930
3650
4180
4700
5190
2070
2750
3440
3990
4480
4960
2370
3160
3950
4740
5490
6070
2370
3160
3950
4550
5110
5650
2180
2900
3620
4160
4660
5160
2000
2660
3330
3890
4370
4830
1880
2500
3130
3720
4170
4610
2200
2930
3660
4400
5130
5740
2200
2930
3660
4300
4830
5340
2020
2700
3370
3930
4410
4880
1850
2470
3090
3680
4130
4570
1740
2320
2900
3480
3950
4360
2070
2760
3450
4140
4830
5480
2070
2760
3450
4110
4620
5100
1900
2540
3170
3750
4210
4660
1740
2330
2910
3490
3950
4370
1630
2190
2730
3280
3770
4170
1970
2620
3280
3930
4590
5240
1970
2620
3280
3930
4440
4910
1810
2410
3010
3610
4060
4480
1650
2210
2760
3310
3800
4200
1470
2080
2600
3110
3630
4010
1880
2510
3130
3760
4390
5010
1880
2510
3130
3760
4300
4750
1730
2300
2880
3460
3920
4340
1510
2110
2640
3170
3680
4060
1340
1950
2480
2980
3480
3880
© Copyright
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
21
GL8 (65mm width) Techlam Rafter Span Tables
Beam Size
(mm)
22
135x65
180x65
225x65
270x65
315x65
360x65
405x65
450x65
135x65
180x65
225x65
270x65
315x65
360x65
405x65
450x65
135x65
180x65
225x65
270x65
315x65
360x65
405x65
450x65
135x65
180x65
225x65
270x65
315x65
360x65
405x65
450x65
135x65
180x65
225x65
270x65
315x65
360x65
405x65
450x65
© Copyright
Wind Zone
(NZS3604)
Low
Medium
High
Very
High
Extra
High
Roof Weight: Light
Roof Pitch, α: 0° to 25°
Rafter Spacing (mm)
400
600
800
900
1200
1500
2000
2500
3000
3500
4000
4680
6020
7110
8150
9150
10100
11100
12000
4510
5600
6620
7590
8520
9420
10300
11100
4120
5110
6040
6930
7780
8600
9390
10200
3860
4790
5660
6490
7290
8060
8800
9530
3690
4570
5410
6200
6960
7690
8400
9090
4090
5440
6430
7370
8270
9140
9990
10800
4080
5060
5980
6860
7700
8510
9300
10100
3720
4620
5460
6260
7030
7770
8490
9190
3450
4330
5120
5870
6590
7280
7950
8610
3240
4130
4890
5600
6290
6950
7590
8220
3720
4960
5980
6860
7700
8510
9290
10100
3720
4710
5570
6380
7170
7920
8650
9360
3420
4300
5080
5830
6540
7230
7900
8550
3130
4030
4760
5460
6130
6780
7400
8010
2950
3850
4550
5210
5850
6470
7060
7650
3580
4770
5810
6660
7470
8260
9020
9770
3580
4570
5410
6200
6960
7690
8400
9090
3290
4170
4940
5660
6350
7020
7670
8300
3010
3910
4620
5300
5950
6580
7190
7780
2830
3730
4410
5060
5680
6280
6860
7420
3250
4330
5400
6200
6960
7690
8400
9090
3250
4260
5030
5770
6480
7160
7820
8460
2990
3880
4590
5270
5910
6530
7140
7720
2740
3640
4300
4930
5540
6120
6690
7240
2570
3430
4110
4710
5290
5840
6380
6910
3020
4020
5030
5860
6580
7270
7940
8600
3020
4020
4760
5460
6120
6770
7390
8000
2770
3670
4340
4980
5590
6180
6750
7300
2540
3390
4070
4670
5240
5790
6320
6850
2390
3190
3880
4450
5000
5530
6040
6530
2740
3650
4570
5450
6120
6770
7390
8000
2740
3650
4430
5080
5700
6300
6880
7450
2520
3360
4040
4630
5200
5750
6280
6800
2310
3080
3790
4340
4870
5390
5890
6370
2170
2890
3620
4150
4650
5140
5620
6080
2540
3390
4240
5090
5790
6400
6990
7570
2540
3390
4190
4800
5390
5960
6510
7040
2340
3120
3820
4380
4920
5440
5940
6430
2140
2860
3570
4110
4610
5100
5570
6020
2020
2690
3360
3920
4400
4860
5310
5750
2390
3190
3990
4790
5530
6110
6680
7230
2390
3190
3990
4590
5150
5690
6220
6730
2200
2930
3650
4190
4700
5200
5680
6140
2020
2690
3360
3920
4400
4870
5320
5760
1900
2530
3160
3750
4200
4650
5080
5490
2270
3030
3790
4550
5300
5880
6430
6950
2270
3030
3790
4410
4950
5480
5980
6470
2090
2790
3480
4030
4520
5000
5460
5910
1920
2560
3190
3780
4240
4680
5120
5540
1800
2400
3000
3600
4050
4470
4880
5290
2170
2900
3620
4350
5070
5690
6220
6730
2170
2900
3620
4270
4790
5300
5790
6260
2000
2670
3330
3900
4370
4840
5280
5720
1830
2440
3060
3650
4100
4530
4950
5360
1720
2300
2870
3450
3910
4330
4720
5110
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
Back to Menu
GL8 (88mm width) Techlam Rafter Span Tables
Beam Size
(mm)
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
Back to Menu
Wind Zone
(NZS3604)
Low
Medium
High
Very
High
Extra
High
Roof Weight: Light
Roof Pitch, α: 0° to 25°
Rafter Spacing (mm)
400
600
800
900
1200
1500
2000
2500
3000
3500
4000
5180
6490
7670
8800
9870
10900
11900
12900
4870
6040
7140
8190
9190
10200
11100
12000
4440
5520
6520
7480
8390
9280
10100
11000
4170
5170
6110
7000
7860
8690
9490
10300
3980
4930
5830
6690
7510
8300
4530
5860
6930
7950
8920
9860
10800
11700
4400
5460
6450
7400
8310
9180
10000
10900
4020
4980
5890
6750
7580
8380
9160
9910
3760
4670
5520
6330
7110
7850
8580
9280
3590
4460
5270
6040
6780
7500
4110
5460
6450
7400
8300
9180
10000
10800
4090
5080
6010
6890
7730
8540
9330
10100
3740
4640
5480
6290
7060
7800
8520
9220
3470
4350
5140
5890
6610
7310
7980
8640
3260
4150
4900
5620
6310
6980
3950
5270
6260
7180
8060
8910
9730
10500
3950
4930
5830
6690
7510
8300
9060
9810
3630
4500
5320
6100
6850
7570
8270
8950
3330
4220
4990
5720
6420
7100
7750
8390
3130
4030
4760
5460
6130
6770
3590
4790
5830
6680
7500
8290
9060
9800
3590
4590
5430
6220
6980
7720
8430
9130
3300
4190
4950
5680
6380
7050
7700
8330
3030
3930
4640
5320
5970
6600
7210
7810
2850
3750
4430
5080
5700
6300
3340
4450
5510
6320
7100
7840
8570
9270
3340
4340
5130
5880
6610
7300
7980
8630
3070
3960
4690
5370
6030
6670
7280
7880
2810
3710
4390
5030
5650
6250
6820
7380
2640
3520
4190
4800
5390
5960
3030
4040
5050
5880
6600
7300
7970
8630
3030
4040
4780
5480
6150
6790
7420
8030
2790
3690
4360
5000
5610
6200
6780
7330
2550
3410
4090
4680
5260
5810
6350
6870
2400
3200
3900
4470
5020
5550
2810
3750
4690
5560
6250
6900
7540
8160
2810
3750
4520
5180
5810
6430
7020
7600
2590
3450
4120
4730
5310
5870
6410
6930
2370
3160
3860
4430
4970
5500
6000
6500
2230
2970
3690
4230
4750
5250
2650
3530
4410
5300
5970
6600
7200
7800
2650
3530
4320
4950
5550
6140
6710
7260
2430
3250
3940
4520
5070
5600
6120
6630
2230
2980
3690
4230
4750
5250
5740
6210
2100
2800
3500
4040
4540
5010
2520
3350
4190
5030
5740
6350
6930
7500
2520
3350
4150
4760
5340
5910
6450
6980
2310
3080
3790
4350
4880
5390
5890
6380
2120
2830
3530
4070
4570
5050
5520
5970
1990
2660
3320
3890
4360
4820
2410
3210
4010
4810
5550
6140
6700
7260
2410
3210
4010
4600
5170
5710
6240
6750
2210
2950
3670
4200
4720
5220
5700
6170
2030
2700
3380
3940
4420
4890
5340
5780
1910
2540
3180
3760
4220
4670
9060
9810
8190
8860
7620
8250
7400
8010
6890
7450
6510
7050
6060
6560
5730
6200
5480
5930
5270
5700
5100
5520
© Copyright
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
23
GL8 (42mm width) Techlam Rafter Span Tables
Beam Size
(mm)
Wind Zone
(NZS3604)
135x42
180x42
225x42
270x42
Low
315x42
360x42
135x42
180x42
225x42
24
270x42
Medium
315x42
360x42
135x42
180x42
225x42
270x42
High
315x42
360x42
135x42
180x42
225x42
270x42
Very
High
315x42
360x42
135x42
180x42
225x42
270x42
315x42
360x42
© Copyright
Extra
High
Roof Weight: Light
Roof Pitch, α: 25° to 45°
Rafter Spacing (mm)
400
600
800
900
1200
1500
2000
2500
3000
3500
4000
3730
4760
5630
6460
7250
8010
3560
4440
5240
6010
6750
7460
3260
4310
5090
5840
6550
7240
3110
4010
4740
5430
6100
6740
2960
3950
4740
5430
6100
6740
2830
3730
4410
5060
5680
6270
2850
3790
4600
5270
5920
6540
2720
3620
4280
4910
5510
6090
2590
3450
4280
4910
5510
6090
2470
3290
3980
4570
5130
5670
2400
3200
4000
4640
5210
5760
2290
3060
3770
4320
4850
5360
2180
2910
3630
4320
4850
5360
2080
2780
3470
4020
4510
4990
2020
2700
3370
4050
4580
5070
1930
2580
3220
3800
4270
4720
1900
2540
3170
3810
4380
4840
1820
2430
3030
3630
4080
4510
1810
2410
3020
3620
4220
4660
1700
2310
2880
3460
3920
4340
1730
2310
2880
3460
4040
4510
1580
2180
2760
3310
3800
4190
3160
4050
4790
5490
6160
6810
2890
3790
4490
5140
5770
6380
2760
3660
4330
4960
5570
6150
2530
3370
4050
4650
5220
5770
2500
3340
4030
4610
5180
5730
2300
3060
3770
4320
4850
5370
2410
3210
3910
4480
5030
5560
2210
2940
3660
4200
4710
5210
2190
2920
3640
4170
4680
5170
2010
2680
3340
3910
4390
4850
2030
2710
3390
3940
4430
4890
1860
2480
3100
3700
4150
4590
1850
2460
3080
3670
4120
4550
1690
2260
2820
3380
3860
4270
1710
2280
2860
3430
3900
4310
1510
2090
2620
3140
3650
4040
1560
2150
2690
3220
3720
4110
1330
1940
2460
2960
3450
3860
1410
2010
2550
3060
3570
3960
1180
1760
2300
2770
3230
3690
1290
1860
2410
2930
3420
3830
1050
1620
2130
2590
3020
3450
2720
3620
4280
4910
5510
6090
2380
3170
3870
4440
4980
5500
2160
2880
3600
4130
4630
5120
2080
2770
3460
4010
4500
4970
1890
2510
3140
3730
4190
4630
1750
2330
2920
3500
3960
4380
1550
2120
2650
3180
3690
4070
1320
1960
2440
2930
3420
3850
1140
1740
2230
2680
3120
3570
993
1570
2070
2480
2890
3310
864
1430
1930
2320
2710
3090
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
Back to Menu
GL8 (65mm width) Techlam Rafter Span Tables
Beam Size
(mm)
135x65
180x65
225x65
270x65
315x65
360x65
405x65
450x65
135x65
180x65
225x65
270x65
315x65
360x65
405x65
450x65
135x65
180x65
225x65
270x65
315x65
360x65
405x65
450x65
135x65
180x65
225x65
270x65
315x65
360x65
405x65
450x65
135x65
180x65
225x65
270x65
315x65
360x65
405x65
450x65
Back to Menu
Wind Zone
(NZS3604)
Low
Medium
High
Very
High
Extra
High
Roof Weight: Light
Roof Pitch, α: 25° to 45°
Rafter Spacing (mm)
400
600
800
900
1200
1500
2000
2500
3000
3500
4000
4280
5310
6280
7200
8090
8940
9760
10600
3990
4950
5850
6710
7530
8320
9090
9840
3640
4520
5340
6120
6870
7600
8300
8980
3350
4230
5000
5740
6440
7120
7770
8410
3150
4040
4780
5480
6150
6790
7420
8030
3770
4800
5680
6510
7310
8080
8820
9550
3600
4470
5280
6060
6800
7520
8210
8890
3190
4080
4820
5530
6210
6860
7500
8110
2920
3820
4520
5180
5820
6430
7030
7600
2750
3650
4310
4950
5550
6140
6710
7260
3420
4470
5280
6060
6800
7520
8210
8880
3270
4160
4920
5640
6330
7000
7640
8270
2900
3800
4490
5150
5780
6390
6980
7550
2660
3540
4210
4820
5410
5980
6540
7080
2500
3330
4020
4600
5170
5710
6240
6750
3290
4340
5130
5880
6600
7300
7970
8630
3150
4040
4780
5480
6150
6790
7420
8030
2790
3690
4360
5000
5610
6200
6770
7330
2550
3410
4080
4680
5260
5810
6350
6870
2400
3200
3900
4470
5020
5550
6060
6560
2990
3990
4770
5470
6140
6790
7420
8030
2860
3760
4440
5100
5720
6320
6910
7470
2530
3370
4060
4650
5220
5770
6300
6820
2320
3090
3800
4360
4890
5410
5910
6390
2180
2910
3630
4160
4670
5160
5640
6100
2780
3700
4510
5180
5810
6420
7020
7590
2650
3540
4200
4820
5410
5980
6530
7070
2350
3130
3840
4400
4940
5460
5960
6450
2150
2870
3590
4120
4630
5110
5590
6050
2020
2700
3370
3930
4420
4880
5330
5770
2520
3360
4200
4820
5410
5980
6530
7070
2410
3210
3910
4480
5030
5560
6080
6580
2130
2850
3560
4090
4600
5080
5550
6000
1960
2610
3260
3840
4310
4760
5200
5630
1840
2450
3070
3660
4110
4540
4960
5370
2340
3120
3900
4560
5110
5650
6170
6680
2240
2980
3700
4240
4760
5260
5750
6220
1980
2640
3300
3870
4350
4800
5250
5680
1820
2420
3030
3630
4070
4500
4920
5320
1710
2280
2850
3420
3890
4300
4690
5080
2200
2940
3670
4350
4890
5400
5900
6380
2110
2810
3510
4050
4550
5030
5490
5940
1860
2490
3110
3700
4150
4590
5010
5430
1710
2280
2850
3420
3890
4300
4700
5080
1590
2140
2680
3210
3710
4110
4480
4850
2090
2790
3490
4190
4700
5200
5680
6140
2000
2670
3330
3900
4380
4840
5280
5720
1770
2360
2950
3540
4000
4420
4820
5220
1610
2170
2710
3250
3740
4140
4520
4890
1420
2040
2540
3050
3560
3950
4310
4670
2000
2670
3340
4000
4550
5030
5490
5940
1910
2550
3190
3770
4230
4680
5110
5530
1690
2260
2820
3390
3860
4270
4670
5050
1470
2070
2590
3110
3620
4000
4370
4730
1290
1920
2400
2880
3370
3820
4170
4520
© Copyright
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
25
GL8 (88mm width) Techlam Rafter Span Tables
Beam Size
(mm)
26
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
© Copyright
Wind Zone
(NZS3604)
Low
Medium
High
Very
High
Extra
High
Roof Weight: Light
Roof Pitch, α: 25° to 45°
Rafter Spacing (mm)
400
600
800
900
1200
1500
2000
2500
3000
3500
4000
4620
5730
6780
7770
8720
9640
10500
11400
4300
5340
6310
7230
8120
8970
9800
10600
3930
4870
5760
6600
7410
8190
8950
9690
3680
4560
5400
6190
6950
7680
8390
9080
3480
4360
5150
5910
6630
7330
8000
8660
4170
5180
6120
7020
7880
8710
9520
10300
3890
4820
5700
6540
7340
8110
8860
9590
3530
4400
5200
5970
6700
7400
8090
8750
3230
4120
4880
5590
6280
6940
7580
8200
3040
3940
4650
5340
5990
6620
7230
7830
3790
4820
5700
6530
7330
8110
8860
9580
3620
4490
5300
6080
6830
7550
8240
8920
3200
4100
4840
5550
6230
6890
7530
8140
2940
3840
4540
5200
5840
6460
7050
7630
2760
3660
4330
4970
5570
6160
6730
7280
3640
4680
5530
6340
7120
7870
8600
9310
3480
4360
5150
5910
6630
7330
8000
8660
3080
3980
4700
5390
6050
6690
7310
7910
2830
3730
4410
5050
5670
6270
6850
7410
2660
3540
4210
4820
5410
5980
6540
7070
3310
4360
5150
5900
6630
7330
8000
8660
3160
4050
4790
5500
6170
6820
7450
8060
2800
3700
4380
5020
5630
6230
6800
7360
2570
3420
4100
4700
5280
5830
6370
6900
2410
3220
3910
4490
5040
5570
6080
6580
3070
4090
4870
5580
6270
6930
7570
8190
2940
3830
4530
5200
5830
6450
7050
7620
2600
3470
4140
4740
5330
5890
6430
6960
2380
3180
3880
4450
4990
5520
6030
6520
2240
2990
3700
4240
4760
5270
5750
6230
2790
3720
4530
5200
5830
6450
7040
7620
2670
3560
4220
4840
5430
6000
6560
7100
2360
3150
3850
4420
4960
5480
5980
6480
2170
2890
3610
4140
4640
5130
5610
6070
2040
2710
3390
3950
4430
4900
5350
5790
2590
3450
4290
4910
5520
6100
6660
7210
2480
3300
3990
4570
5140
5680
6200
6710
2190
2920
3640
4180
4690
5180
5660
6130
2010
2680
3350
3910
4390
4860
5300
5740
1890
2520
3150
3740
4190
4630
5060
5480
2440
3250
4060
4690
5270
5830
6360
6890
2330
3110
3810
4370
4910
5420
5920
6410
2060
2750
3440
3990
4480
4950
5410
5850
1890
2520
3150
3740
4200
4640
5070
5480
1780
2370
2960
3560
4010
4430
4840
5230
2320
3090
3860
4520
5070
5610
6120
6630
2210
2950
3670
4210
4720
5220
5700
6170
1960
2610
3270
3840
4310
4760
5200
5630
1800
2400
2990
3590
4040
4460
4880
5280
1690
2250
2810
3380
3850
4260
4650
5040
2210
2950
3690
4370
4900
5420
5920
6410
2120
2820
3530
4070
4570
5050
5510
5970
1870
2500
3120
3710
4170
4610
5030
5450
1720
2290
2860
3440
3910
4320
4720
5100
1600
2150
2690
3230
3730
4120
4500
4870
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
Back to Menu
GL10 (42mm width) Techlam Rafter Span Tables
Beam Size
(mm)
Wind Zone
(NZS3604)
Roof Weight: Light
Roof Pitch, α: 0° to 25°
Rafter Spacing (mm)
400
600
800
900
1200
1500
2000
2500
3000
3500
4000
4360
5700
6740
7730
8680
9590
4280
5310
6280
7200
8080
8930
3810
5080
6090
6990
7840
8670
3810
4800
5670
6500
7300
8070
3460
4620
5670
6500
7300
8070
3460
4460
5280
6050
6790
7510
3330
4440
5510
6310
7090
7830
3330
4340
5130
5880
6600
7290
3030
4030
5040
5870
6590
7290
3030
4030
4770
5470
6140
6790
2810
3740
4680
5560
6240
6890
2810
3740
4510
5170
5810
6420
2550
3400
4250
5100
5800
6410
2550
3400
4200
4810
5400
5970
2370
3160
3950
4740
5490
6070
2370
3160
3950
4550
5110
5650
2230
2970
3710
4460
5200
5800
2230
2970
3710
4350
4880
5400
2120
2820
3530
4230
4940
5580
2120
2820
3530
4180
4700
5190
2030
2700
3380
4050
4720
5390
2030
2700
3380
4050
4540
5020
3910
4850
5730
6570
7370
8150
3660
4540
5370
6160
6910
7640
3500
4380
5180
5940
6660
7370
3210
4100
4850
5560
6240
6900
3180
4080
4820
5520
6200
6850
2920
3820
4520
5180
5810
6420
3060
3960
4680
5360
6020
6660
2810
3710
4380
5030
5640
6240
2780
3680
4350
4990
5600
6190
2550
3400
4080
4680
5250
5800
2580
3440
4120
4720
5300
5860
2370
3160
3860
4420
4970
5490
2350
3130
3830
4390
4930
5450
2150
2870
3580
4120
4620
5110
2180
2900
3620
4160
4660
5160
2000
2660
3330
3890
4370
4830
2050
2730
3420
3970
4460
4930
1880
2510
3130
3720
4180
4620
1950
2600
3240
3820
4290
4740
1780
2380
2970
3570
4020
4440
1860
2480
3100
3690
4150
4580
1660
2280
2850
3410
3890
4300
315x42
3460
4340
5130
5880
6600
3020
3920
4630
5310
5960
2740
3650
4310
4940
5550
2640
3520
4180
4800
5390
2400
3200
3890
4460
5010
2220
2970
3680
4220
4740
2020
2700
3370
3930
4410
1880
2500
3130
3720
4170
1770
2350
2940
3530
3990
1620
2240
2800
3350
3840
1490
2130
2670
3210
3710
360x42
7290
6590
6130
5950
5540
5240
4880
4610
4410
4240
4100
135x42
180x42
225x42
270x42
Low
315x42
360x42
135x42
180x42
225x42
270x42
Medium
315x42
360x42
135x42
180x42
225x42
270x42
High
315x42
360x42
135x42
180x42
225x42
270x42
Very
High
315x42
360x42
135x42
180x42
225x42
270x42
Back to Menu
Extra
High
© Copyright
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
27
GL10 (65mm width) Techlam Rafter Span Tables
Beam Size
(mm)
28
135x65
180x65
225x65
270x65
315x65
360x65
405x65
450x65
135x65
180x65
225x65
270x65
315x65
360x65
405x65
450x65
135x65
180x65
225x65
270x65
315x65
360x65
405x65
450x65
135x65
180x65
225x65
270x65
315x65
360x65
405x65
450x65
135x65
180x65
225x65
270x65
315x65
360x65
405x65
450x65
© Copyright
Wind Zone
(NZS3604)
Low
Medium
High
Very
High
Extra
High
Roof Pitch, α: 0° to 25°
Roof Weight: Light
Rafter Spacing (mm)
400
600
800
900
1200
1500
2000
2500
3000
3500
4000
5050
6360
7520
8620
9680
10700
11700
12600
4770
5920
7000
8030
9010
9960
10900
11800
4360
5410
6390
7330
8230
9090
9930
10700
4080
5070
5990
6870
7710
8520
9310
10100
3900
4840
5720
6550
7360
8130
8880
9610
4410
5750
6800
7790
8750
9670
10600
11400
4310
5350
6330
7250
8140
9000
9830
10600
3940
4890
5780
6620
7430
8220
8970
9710
3690
4580
5410
6200
6960
7700
8410
9100
3490
4370
5170
5920
6650
7350
8030
8690
4010
5340
6320
7250
8140
9000
9830
10600
4010
4980
5890
6750
7580
8380
9150
9900
3660
4550
5370
6160
6920
7650
8350
9040
3380
4260
5040
5770
6480
7160
7830
8470
3170
4070
4810
5510
6190
6840
7470
8080
3850
5130
6140
7040
7900
8740
9540
10300
3850
4840
5720
6550
7360
8130
8880
9610
3540
4410
5220
5980
6720
7420
8110
8780
3250
4140
4890
5610
6290
6960
7600
8220
3050
3950
4670
5350
6010
6640
7250
7850
3500
4670
5710
6550
7350
8130
8880
9610
3500
4500
5320
6100
6850
7570
8270
8950
3220
4110
4860
5570
6250
6910
7550
8170
2950
3850
4550
5220
5860
6470
7070
7650
2770
3670
4340
4980
5590
6180
6750
7300
3250
4330
5400
6200
6960
7690
8400
9090
3250
4260
5030
5770
6480
7160
7820
8460
2990
3880
4590
5270
5910
6530
7140
7720
2740
3640
4300
4930
5540
6120
6690
7240
2570
3430
4110
4710
5290
5840
6380
6910
2950
3930
4920
5770
6470
7150
7820
8460
2950
3930
4680
5370
6030
6660
7280
7870
2710
3620
4270
4900
5500
6080
6640
7190
2490
3320
4000
4590
5150
5700
6220
6740
2340
3120
3820
4380
4920
5440
5940
6430
2740
3650
4570
5450
6120
6770
7390
8000
2740
3650
4430
5080
5700
6300
6880
7450
2520
3360
4040
4630
5200
5750
6280
6800
2310
3080
3790
4340
4870
5390
5890
6370
2170
2890
3620
4150
4650
5140
5620
6080
2580
3440
4300
5160
5850
6460
7060
7640
2580
3440
4230
4850
5450
6020
6570
7120
2370
3160
3860
4430
4970
5490
6000
6500
2170
2900
3620
4150
4660
5150
5620
6090
2040
2720
3400
3960
4450
4910
5370
5810
2450
3270
4080
4900
5630
6220
6800
7350
2450
3270
4070
4670
5240
5790
6330
6850
2250
3000
3720
4260
4780
5290
5770
6250
2060
2750
3440
3990
4480
4950
5410
5860
1940
2590
3230
3810
4280
4730
5170
5590
2340
3120
3900
4680
5440
6020
6570
7110
2340
3120
3900
4510
5070
5600
6120
6620
2150
2870
3590
4120
4630
5110
5590
6040
1970
2630
3290
3860
4330
4790
5230
5660
1860
2470
3090
3690
4140
4570
5000
5410
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
Back to Menu
GL10 (88mm width) Techlam Rafter Span Tables
Beam Size
(mm)
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
Back to Menu
Wind Zone
(NZS3604)
Low
Medium
High
Very
High
Extra
High
Roof Weight: Light
Roof Pitch, α: 0° to 25°
Rafter Spacing (mm)
400
600
800
900
1200
1500
2000
2500
3000
3500
4000
5530
6860
8110
9300
10400
11500
12600
13600
5150
6390
7550
8660
9720
10700
11700
12700
4700
5830
6890
7900
8870
9810
10700
11600
4400
5460
6460
7410
8310
9190
10000
10900
4200
5220
6170
7070
7940
8770
9580
10400
4880
6200
7330
8400
9430
10400
11400
12300
4650
5770
6820
7820
8780
9710
10600
11500
4250
5270
6230
7140
8020
8860
9680
10500
3980
4940
5840
6690
7510
8300
9070
9820
3800
4710
5570
6390
7170
7930
8660
9370
4430
5770
6820
7820
8780
9700
10600
11500
4330
5370
6350
7280
8170
9030
9870
10700
3950
4900
5800
6650
7460
8250
9010
9750
3700
4600
5430
6230
6990
7730
8440
9140
3510
4390
5190
5940
6670
7380
8060
8720
4260
5600
6620
7590
8520
9420
10300
11100
4200
5220
6170
7070
7940
8770
9580
10400
3840
4760
5630
6450
7240
8010
8750
9470
3590
4460
5270
6050
6790
7500
8200
8870
3380
4260
5030
5770
6480
7160
7820
8470
3870
5160
6160
7070
7930
8770
9580
10400
3870
4850
5740
6580
7390
8160
8920
9650
3560
4430
5240
6010
6740
7450
8140
8810
3260
4150
4910
5630
6320
6980
7630
8260
3070
3960
4690
5370
6030
6670
7280
7880
3590
4790
5830
6680
7500
8290
9060
9800
3590
4590
5430
6220
6980
7720
8430
9130
3300
4190
4950
5680
6380
7050
7700
8330
3030
3930
4640
5320
5970
6600
7210
7810
2850
3750
4430
5080
5700
6300
6890
7450
3260
4350
5420
6220
6980
7720
8430
9120
3260
4270
5050
5790
6500
7180
7850
8490
3000
3900
4610
5290
5930
6560
7160
7750
2750
3650
4320
4950
5560
6150
6710
7270
2590
3450
4120
4730
5310
5870
6410
6930
3030
4040
5050
5880
6600
7300
7970
8630
3030
4040
4780
5480
6150
6790
7420
8030
2790
3690
4360
5000
5610
6200
6780
7330
2550
3410
4090
4680
5260
5810
6350
6870
2400
3200
3900
4470
5020
5550
6060
6560
2850
3800
4750
5620
6310
6970
7620
8240
2850
3800
4560
5230
5870
6490
7090
7670
2620
3500
4170
4780
5360
5930
6470
7010
2400
3210
3900
4480
5020
5550
6070
6570
2260
3010
3730
4270
4800
5300
5790
6270
2710
3610
4520
5410
6070
6710
7330
7930
2710
3610
4390
5030
5650
6250
6820
7380
2490
3320
4010
4600
5160
5700
6230
6740
2280
3050
3760
4310
4830
5340
5840
6320
2150
2860
3580
4110
4610
5100
5570
6030
2590
3460
4320
5180
5870
6490
7090
7670
2590
3460
4250
4870
5470
6040
6600
7140
2380
3180
3880
4440
4990
5520
6020
6520
2180
2910
3630
4170
4680
5170
5650
6110
2050
2740
3420
3980
4460
4930
5390
5830
© Copyright
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
29
GL10 (42mm width) Techlam Rafter Span Tables
Beam Size
(mm)
Wind Zone
(NZS3604)
135x42
180x42
225x42
270x42
Low
315x42
360x42
135x42
180x42
225x42
30
270x42
Medium
315x42
360x42
135x42
180x42
225x42
270x42
High
315x42
360x42
135x42
180x42
225x42
270x42
Very
High
315x42
360x42
135x42
180x42
225x42
270x42
315x42
360x42
© Copyright
Extra
High
Roof Weight: Light
Roof Pitch, α: 25° to 45°
Rafter Spacing (mm)
400
600
800
900
1200
1500
2000
2500
3000
3500
4000
4020
5040
5960
6830
7670
8470
3780
4690
5540
6360
7140
7890
3400
4280
5060
5800
6510
7200
3510
4550
5380
6170
6930
7660
3350
4240
5010
5740
6450
7130
2970
3870
4570
5240
5890
6510
3190
4240
5010
5740
6450
7120
3050
3940
4660
5350
6000
6630
2700
3600
4260
4880
5480
6050
3070
4090
4860
5580
6260
6920
2930
3830
4530
5190
5830
6440
2590
3460
4130
4740
5320
5880
2780
3710
4530
5190
5820
6440
2660
3550
4210
4830
5420
5990
2360
3140
3850
4410
4950
5470
2590
3450
4280
4910
5510
6090
2470
3290
3980
4570
5130
5670
2190
2920
3640
4170
4680
5170
2350
3130
3910
4570
5130
5670
2240
2990
3710
4250
4770
5270
1990
2650
3310
3880
4360
4820
2180
2910
3630
4320
4850
5360
2080
2780
3470
4020
4510
4990
1850
2460
3080
3670
4120
4550
2050
2740
3420
4100
4630
5120
1960
2610
3270
3840
4310
4770
1710
2320
2890
3470
3940
4350
1950
2600
3250
3900
4460
4930
1850
2480
3100
3700
4150
4590
1550
2190
2750
3300
3790
4190
1860
2490
3110
3730
4310
4760
1720
2360
2970
3560
4010
4440
1420
2030
2610
3160
3660
4050
3120
4010
4740
5440
6100
6750
2930
3830
4530
5190
5830
6440
2720
3630
4290
4910
5520
6100
2560
3410
4090
4690
5260
5820
2470
3300
3990
4570
5130
5670
2330
3100
3810
4360
4900
5420
2380
3170
3870
4440
4980
5510
2240
2980
3700
4240
4760
5260
2160
2880
3600
4130
4640
5130
2030
2710
3390
3940
4430
4890
2010
2680
3340
3910
4390
4850
1890
2510
3140
3730
4190
4630
1820
2430
3040
3640
4080
4510
1710
2280
2860
3430
3900
4310
1660
2260
2820
3380
3860
4270
1470
2100
2630
3160
3680
4070
1470
2120
2650
3180
3690
4080
1290
1910
2400
2880
3360
3840
1320
1930
2480
2980
3470
3920
1130
1730
2220
2670
3110
3560
1190
1780
2320
2780
3250
3710
1010
1590
2080
2500
2910
3330
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
Back to Menu
GL10 (65mm width) Techlam Rafter Span Tables
Beam Size
(mm)
135x65
180x65
225x65
270x65
315x65
360x65
405x65
450x65
135x65
180x65
225x65
270x65
315x65
360x65
405x65
450x65
135x65
180x65
225x65
270x65
315x65
360x65
405x65
450x65
135x65
180x65
225x65
270x65
315x65
360x65
405x65
450x65
135x65
180x65
225x65
270x65
315x65
360x65
405x65
450x65
Back to Menu
Wind Zone
(NZS3604)
Low
Medium
High
Very
High
Extra
High
Roof Weight: Light
Roof Pitch, α: 25° to 45°
Rafter Spacing (mm)
400
600
800
900
1200
1500
2000
2500
3000
3500
4000
4530
5620
6640
7620
8550
9450
10300
11200
4220
5230
6180
7090
7960
8800
9610
10400
3850
4780
5650
6470
7270
8030
8770
9490
3610
4470
5290
6060
6810
7530
8220
8900
3390
4270
5050
5790
6500
7180
7850
8490
4060
5080
6000
6880
7730
8540
9330
10100
3810
4730
5590
6410
7190
7950
8680
9400
3430
4310
5100
5850
6570
7260
7930
8580
3150
4040
4780
5480
6150
6800
7430
8040
2960
3860
4560
5230
5870
6490
7090
7670
3690
4730
5590
6400
7190
7950
8680
9390
3520
4400
5200
5960
6690
7400
8080
8750
3120
4020
4750
5440
6110
6750
7380
7980
2860
3760
4450
5100
5730
6330
6910
7480
2690
3590
4250
4870
5460
6040
6600
7140
3550
4590
5420
6220
6980
7720
8430
9120
3390
4270
5050
5790
6500
7180
7850
8490
3000
3900
4610
5280
5930
6560
7160
7750
2750
3650
4320
4950
5560
6140
6710
7260
2590
3450
4120
4730
5310
5870
6410
6930
3220
4270
5050
5790
6500
7180
7840
8490
3080
3970
4700
5390
6050
6680
7300
7900
2730
3630
4290
4920
5520
6100
6670
7210
2500
3330
4020
4610
5170
5720
6250
6760
2350
3130
3840
4400
4940
5460
5960
6450
2990
3990
4770
5470
6140
6790
7420
8030
2860
3760
4440
5100
5720
6320
6910
7470
2530
3370
4060
4650
5220
5770
6300
6820
2320
3090
3800
4360
4890
5410
5910
6390
2180
2910
3630
4160
4670
5160
5640
6100
2720
3620
4440
5090
5720
6320
6900
7470
2600
3460
4140
4740
5320
5880
6430
6960
2300
3070
3780
4330
4860
5370
5870
6350
2110
2810
3510
4060
4550
5030
5500
5950
1980
2640
3300
3870
4350
4800
5250
5680
2520
3360
4200
4820
5410
5980
6530
7070
2410
3210
3910
4480
5030
5560
6080
6580
2130
2850
3560
4090
4600
5080
5550
6000
1960
2610
3260
3840
4310
4760
5200
5630
1840
2450
3070
3660
4110
4540
4960
5370
2370
3160
3960
4600
5170
5710
6240
6750
2270
3020
3740
4280
4810
5320
5810
6280
2010
2680
3350
3910
4390
4850
5300
5740
1840
2460
3070
3660
4110
4550
4970
5380
1730
2310
2890
3460
3930
4340
4740
5130
2250
3010
3760
4430
4970
5490
6000
6500
2150
2870
3590
4120
4630
5120
5590
6050
1910
2540
3180
3760
4220
4670
5100
5520
1750
2330
2920
3500
3960
4380
4780
5170
1580
2190
2740
3290
3780
4180
4560
4940
2160
2880
3590
4280
4810
5310
5810
6280
2060
2750
3430
3990
4480
4950
5400
5850
1830
2430
3040
3640
4090
4520
4930
5340
1630
2230
2790
3350
3830
4230
4620
5000
1440
2070
2590
3100
3620
4040
4410
4780
© Copyright
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
31
GL10 (88mm width) Techlam Rafter Span Tables
Beam Size
(mm)
32
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
© Copyright
Wind Zone
(NZS3604)
Low
Medium
High
Very
High
Extra
High
Roof Weight: Light
Roof Pitch, α: 25° to 45°
Rafter Spacing (mm)
400
600
800
900
1200
1500
2000
2500
3000
3500
4000
4880
6060
7170
8220
9220
10200
11100
12100
4550
5640
6670
7650
8590
9490
10400
11200
4150
5150
6090
6980
7840
8660
9460
10200
3890
4830
5710
6540
7340
8120
8870
9600
3710
4610
5450
6240
7010
7750
8460
9160
4410
5480
6470
7420
8330
9210
10100
10900
4110
5100
6030
6910
7760
8570
9370
10100
3750
4650
5500
6310
7080
7830
8550
9250
3480
4360
5160
5910
6640
7340
8010
8670
3270
4160
4920
5640
6330
7000
7650
8280
4080
5100
6030
6910
7750
8570
9360
10100
3820
4740
5610
6430
7220
7980
8720
9430
3450
4330
5120
5870
6590
7280
7960
8610
3170
4060
4800
5500
6180
6830
7460
8070
2980
3870
4580
5250
5890
6520
7120
7700
3920
4950
5850
6710
7530
8320
9090
9840
3710
4610
5450
6240
7010
7750
8460
9160
3320
4210
4970
5700
6400
7070
7730
8360
3040
3940
4660
5340
6000
6630
7240
7840
2860
3760
4450
5100
5720
6330
6910
7480
3560
4610
5440
6240
7010
7750
8460
9160
3410
4290
5070
5810
6520
7210
7880
8520
3020
3910
4630
5300
5960
6580
7190
7780
2770
3670
4340
4970
5580
6170
6740
7290
2600
3470
4140
4740
5330
5890
6430
6960
3310
4360
5150
5900
6630
7330
8000
8660
3160
4050
4790
5500
6170
6820
7450
8060
2800
3700
4380
5020
5630
6230
6800
7360
2570
3420
4100
4700
5280
5830
6370
6900
2410
3220
3910
4490
5040
5570
6080
6580
3010
4010
4790
5490
6170
6820
7450
8060
2870
3770
4460
5110
5740
6350
6930
7500
2540
3390
4070
4670
5240
5790
6330
6850
2330
3110
3820
4380
4910
5430
5930
6420
2190
2920
3640
4180
4690
5180
5660
6130
2790
3720
4530
5200
5830
6450
7040
7620
2670
3560
4220
4840
5430
6000
6560
7100
2360
3150
3850
4420
4960
5480
5980
6480
2170
2890
3610
4140
4640
5130
5610
6070
2040
2710
3390
3950
4430
4900
5350
5790
2630
3500
4330
4960
5570
6160
6730
7280
2510
3350
4030
4620
5190
5730
6260
6780
2220
2960
3680
4220
4740
5230
5720
6190
2040
2720
3400
3950
4440
4910
5360
5800
1920
2550
3190
3770
4240
4680
5110
5540
2490
3330
4160
4780
5360
5930
6470
7010
2380
3180
3880
4450
4990
5520
6030
6520
2110
2810
3520
4060
4560
5040
5500
5950
1940
2580
3230
3800
4270
4720
5160
5580
1820
2430
3030
3630
4080
4510
4920
5330
2390
3180
3980
4620
5190
5730
6260
6780
2280
3040
3750
4300
4830
5340
5830
6310
2020
2690
3360
3930
4410
4870
5320
5760
1850
2470
3090
3680
4130
4560
4990
5400
1740
2320
2900
3480
3940
4360
4760
5150
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
Back to Menu
GL12 (42mm width) Techlam Rafter Span Tables
Beam Size
(mm)
Wind Zone
(NZS3604)
135x42
180x42
225x42
270x42
Low
315x42
360x42
135x42
180x42
225x42
270x42
Medium
315x42
360x42
135x42
180x42
225x42
270x42
High
315x42
360x42
135x42
180x42
225x42
270x42
Very
High
315x42
360x42
135x42
180x42
225x42
270x42
315x42
360x42
Back to Menu
Extra
High
Roof Weight: Light
Roof Pitch, α: 0° to 25°
Rafter Spacing (mm)
400
600
800
900
1200
1500
2000
2500
3000
3500
4000
4570
5910
6980
8010
8990
9930
4430
5500
6500
7450
8370
9250
3990
5320
6310
7230
8120
8980
3990
4970
5870
6730
7560
8360
3630
4840
5870
6730
7560
8350
3630
4620
5470
6270
7040
7780
3490
4650
5700
6540
7340
8110
3490
4490
5310
6090
6830
7550
3170
4230
5280
6080
6830
7550
3170
4180
4940
5660
6360
7030
2940
3920
4900
5750
6460
7140
2940
3920
4670
5360
6010
6650
2670
3560
4460
5350
6010
6640
2670
3560
4350
4980
5590
6180
2480
3310
4140
4960
5680
6280
2480
3310
4110
4710
5290
5850
2340
3110
3890
4670
5430
6000
2340
3110
3890
4500
5060
5590
2220
2960
3700
4440
5180
5780
2220
2960
3700
4330
4860
5380
2120
2830
3540
4240
4950
5590
2120
2830
3540
4190
4700
5200
4050
5020
5930
6800
7640
8440
3790
4700
5560
6380
7160
7910
3620
4490
5310
6090
6830
7550
3660
4540
5360
6150
6900
7630
3370
4250
5020
5760
6470
7150
3160
4060
4800
5500
6170
6820
3340
4220
4990
5720
6420
7100
3060
3960
4680
5360
6020
6650
2870
3780
4460
5120
5740
6350
3210
4100
4840
5550
6240
6890
2940
3840
4540
5210
5840
6460
2760
3670
4330
4970
5580
6160
2910
3810
4510
5170
5800
6410
2670
3560
4220
4840
5440
6010
2510
3350
4030
4620
5190
5740
2700
3610
4260
4890
5490
6070
2480
3310
4000
4580
5140
5680
2330
3110
3810
4370
4910
5430
2460
3280
3970
4550
5110
5650
2250
3000
3720
4260
4790
5290
2120
2820
3530
4070
4570
5050
2280
3040
3750
4300
4830
5340
2090
2790
3490
4030
4530
5000
1970
2620
3280
3850
4320
4780
2150
2860
3580
4110
4610
5100
1970
2620
3280
3850
4320
4780
1850
2470
3080
3680
4130
4560
2040
2720
3400
3960
4440
4910
1870
2490
3120
3710
4160
4600
1760
2340
2930
3510
3970
4390
1950
2600
3250
3830
4290
4750
1790
2380
2980
3580
4020
4450
1620
2240
2800
3360
3840
4250
© Copyright
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
33
GL12 (65mm width) Techlam Rafter Span Tables
Beam Size
(mm)
34
135x65
180x65
225x65
270x65
315x65
360x65
405x65
450x65
135x65
180x65
225x65
270x65
315x65
360x65
405x65
450x65
135x65
180x65
225x65
270x65
315x65
360x65
405x65
450x65
135x65
180x65
225x65
270x65
315x65
360x65
405x65
450x65
135x65
180x65
225x65
270x65
315x65
360x65
405x65
450x65
© Copyright
Wind Zone
(NZS3604)
Low
Medium
High
Very
High
Extra
High
Roof Pitch, α: 0° to 25°
Roof Weight: Light
Rafter Spacing (mm)
400
600
800
900
1200
1500
2000
2500
3000
3500
4000
5290
6590
7790
8930
10000
11100
12100
13100
4940
6130
7250
8310
9330
10300
11300
12200
4510
5600
6620
7590
8520
9420
10300
11100
4230
5250
6200
7110
7980
8820
9640
10400
4040
5010
5920
6790
7620
8420
9200
9960
4620
5950
7040
8070
9060
10000
10900
11800
4470
5540
6550
7510
8430
9320
10200
11000
4080
5060
5980
6860
7700
8510
9290
10100
3820
4740
5600
6430
7210
7970
8710
9420
3650
4520
5350
6130
6880
7610
8310
9000
4200
5540
6550
7510
8430
9320
10200
11000
4160
5160
6100
6990
7850
8670
9470
10300
3790
4710
5570
6380
7160
7920
8650
9360
3540
4410
5220
5980
6710
7420
8100
8770
3320
4210
4980
5710
6410
7080
7740
8370
4030
5380
6360
7290
8180
9050
9880
10700
4030
5010
5920
6790
7620
8420
9200
9960
3680
4570
5400
6200
6960
7690
8400
9090
3400
4280
5060
5810
6520
7200
7870
8520
3200
4090
4830
5540
6220
6880
7510
8130
3670
4890
5920
6780
7620
8420
9200
9950
3670
4660
5510
6320
7090
7840
8560
9260
3370
4250
5030
5770
6470
7150
7810
8460
3090
3990
4710
5400
6060
6700
7320
7930
2900
3800
4500
5160
5790
6400
6990
7560
3400
4540
5600
6420
7200
7960
8700
9410
3400
4410
5210
5970
6710
7410
8100
8760
3130
4020
4760
5450
6120
6770
7390
8000
2870
3770
4460
5110
5740
6340
6930
7500
2700
3590
4250
4880
5480
6050
6610
7150
3090
4120
5150
5970
6700
7410
8090
8760
3090
4100
4850
5560
6240
6900
7530
8150
2840
3740
4430
5070
5700
6300
6880
7440
2610
3480
4150
4760
5340
5900
6450
6970
2450
3270
3960
4540
5100
5630
6150
6660
2870
3830
4780
5650
6340
7010
7650
8280
2870
3830
4590
5260
5900
6520
7130
7710
2640
3520
4190
4800
5390
5950
6500
7040
2420
3230
3920
4500
5050
5580
6100
6600
2270
3030
3740
4290
4820
5330
5820
6300
2700
3600
4500
5400
6060
6690
7310
7910
2700
3600
4380
5020
5640
6230
6810
7370
2480
3310
4000
4590
5150
5690
6220
6730
2280
3040
3750
4300
4820
5330
5820
6300
2140
2850
3570
4100
4600
5090
5560
6020
2570
3420
4280
5130
5830
6440
7040
7620
2570
3420
4220
4830
5430
6000
6550
7090
2360
3150
3850
4410
4950
5470
5980
6470
2160
2880
3600
4130
4640
5130
5600
6060
2030
2710
3390
3950
4430
4900
5350
5790
2450
3270
4090
4910
5640
6230
6810
7370
2450
3270
4080
4670
5250
5800
6340
6860
2260
3010
3720
4270
4790
5290
5780
6260
2070
2760
3450
4000
4490
4960
5420
5870
1940
2590
3240
3820
4280
4740
5170
5600
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
Back to Menu
GL12 (88mm width) Techlam Rafter Span Tables
Beam Size
(mm)
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
Back to Menu
Wind Zone
(NZS3604)
Low
Medium
High
Very
High
Extra
High
Roof Pitch, α: 0° to 25°
Roof Weight: Light
Rafter Spacing (mm)
400
600
800
900
1200
1500
2000
2500
3000
3500
4000
5730
7110
8400
9630
10800
12000
13100
14100
5330
6620
7820
8970
10100
11100
12200
13200
4870
6040
7140
8190
9190
10200
11100
12000
4560
5660
6690
7670
8610
9520
10400
11300
4350
5400
6390
7320
8220
9080
9920
10700
5110
6420
7590
8700
9770
10800
11800
12800
4820
5980
7070
8100
9100
10100
11000
11900
4400
5460
6450
7400
8300
9180
10000
10800
4120
5110
6040
6930
7780
8600
9390
10200
3930
4880
5770
6620
7430
8210
8970
9700
4640
5980
7060
8100
9090
10000
11000
11900
4480
5560
6580
7540
8460
9360
10200
11100
4090
5080
6000
6880
7730
8540
9330
10100
3830
4760
5630
6450
7240
8000
8740
9460
3660
4540
5370
6160
6910
7640
8340
9030
4460
5800
6860
7860
8830
9760
10700
11500
4350
5400
6390
7320
8220
9080
9920
10700
3970
4930
5830
6680
7500
8290
9060
9800
3720
4620
5460
6260
7030
7770
8490
9190
3540
4410
5210
5980
6710
7420
8100
8770
4060
5400
6380
7320
8220
9080
9920
10700
4050
5030
5940
6810
7650
8450
9230
9990
3700
4590
5420
6220
6980
7720
8430
9120
3420
4300
5080
5830
6540
7230
7900
8550
3210
4100
4850
5560
6240
6900
7540
8160
3760
5020
6040
6920
7770
8590
9380
10200
3760
4750
5620
6440
7230
7990
8730
9450
3460
4340
5130
5880
6600
7300
7970
8630
3170
4070
4810
5510
6190
6840
7470
8080
2980
3880
4590
5260
5910
6530
7130
7720
3420
4560
5620
6440
7230
7990
8730
9450
3420
4420
5230
6000
6730
7440
8130
8800
3140
4040
4770
5470
6140
6790
7420
8030
2880
3780
4470
5130
5760
6360
6950
7520
2710
3610
4270
4900
5500
6070
6640
7180
3180
4230
5290
6090
6840
7560
8260
8940
3180
4180
4950
5670
6370
7040
7690
8320
2920
3820
4520
5180
5810
6420
7020
7590
2680
3570
4230
4850
5450
6020
6570
7120
2520
3350
4040
4630
5200
5750
6280
6790
2990
3980
4980
5820
6530
7220
7890
8540
2990
3980
4730
5420
6080
6720
7340
7950
2750
3650
4310
4950
5550
6140
6700
7260
2520
3360
4040
4630
5200
5750
6280
6800
2370
3160
3860
4420
4970
5490
6000
6490
2840
3780
4730
5600
6290
6950
7590
8210
2840
3780
4550
5210
5850
6470
7070
7650
2610
3480
4150
4760
5340
5910
6450
6980
2390
3190
3890
4460
5010
5530
6040
6540
2250
3000
3710
4260
4780
5280
5770
6240
2710
3620
4520
5420
6080
6720
7340
7940
2710
3620
4400
5040
5660
6260
6830
7400
2500
3330
4010
4600
5170
5710
6240
6750
2290
3050
3760
4310
4840
5350
5850
6330
2150
2870
3580
4120
4620
5110
5580
6040
© Copyright
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
35
GL12 (42mm width) Techlam Rafter Span Tables
Beam Size
(mm)
Wind Zone
(NZS3604)
135x42
180x42
225x42
270x42
Low
315x42
360x42
135x42
180x42
225x42
36
270x42
Medium
315x42
360x42
135x42
180x42
225x42
270x42
High
315x42
360x42
135x42
180x42
225x42
270x42
Very
High
315x42
360x42
135x42
180x42
225x42
270x42
315x42
360x42
© Copyright
Extra
High
Roof Weight: Light
Roof Pitch, α: 25° to 45°
Rafter Spacing (mm)
400
600
800
900
1200
1500
2000
2500
3000
3500
4000
4200
5220
6170
7070
7940
8770
3910
4860
5740
6580
7390
8170
3680
4710
5570
6390
7170
7930
3510
4390
5190
5950
6680
7380
3340
4390
5190
5950
6670
7380
3190
4080
4830
5540
6210
6870
3210
4260
5040
5770
6480
7160
3070
3970
4690
5370
6030
6670
2920
3890
4690
5370
6030
6670
2790
3690
4360
5000
5610
6210
2710
3610
4430
5080
5700
6310
2590
3450
4130
4730
5310
5870
2460
3280
4100
4730
5310
5870
2350
3140
3840
4400
4940
5460
2280
3050
3810
4470
5020
5550
2180
2910
3630
4160
4670
5170
2150
2870
3580
4270
4800
5300
2050
2740
3420
3980
4470
4940
2040
2720
3400
4080
4620
5100
1950
2600
3250
3830
4300
4750
1950
2600
3260
3910
4460
4930
1850
2490
3110
3700
4160
4590
3560
4430
5240
6010
6750
7460
3270
4150
4910
5630
6320
6990
3070
3970
4690
5370
6030
6670
3110
4010
4740
5430
6100
6740
2850
3750
4440
5090
5710
6310
2680
3570
4240
4860
5450
6030
2830
3730
4410
5050
5670
6270
2590
3460
4130
4740
5320
5880
2440
3250
3940
4520
5070
5610
2720
3620
4280
4910
5510
6090
2490
3320
4010
4600
5160
5700
2340
3120
3830
4390
4930
5450
2470
3290
3980
4570
5130
5670
2260
3020
3730
4280
4800
5310
2130
2840
3550
4080
4580
5070
2290
3060
3770
4320
4850
5360
2100
2800
3500
4050
4540
5020
1980
2630
3290
3860
4340
4790
2080
2780
3470
4020
4510
4990
1910
2550
3180
3770
4230
4670
1790
2390
2990
3590
4030
4460
1930
2580
3220
3800
4270
4720
1770
2360
2950
3550
4000
4420
1610
2220
2780
3330
3820
4220
1820
2430
3030
3630
4080
4510
1600
2220
2780
3340
3820
4220
1420
2050
2560
3070
3580
4030
1680
2300
2880
3460
3920
4340
1440
2080
2640
3170
3680
4060
1260
1880
2370
2840
3320
3790
1550
2180
2760
3310
3790
4190
1310
1920
2470
2970
3460
3930
1130
1730
2220
2660
3100
3550
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
Back to Menu
GL12 (65mm width) Techlam Rafter Span Tables
Beam Size
(mm)
135x65
180x65
225x65
270x65
315x65
360x65
405x65
450x65
135x65
180x65
225x65
270x65
315x65
360x65
405x65
450x65
135x65
180x65
225x65
270x65
315x65
360x65
405x65
450x65
135x65
180x65
225x65
270x65
315x65
360x65
405x65
450x65
135x65
180x65
225x65
270x65
315x65
360x65
405x65
450x65
Back to Menu
Wind Zone
(NZS3604)
Low
Medium
High
Very
High
Extra
High
Roof Weight: Light
Roof Pitch, α: 25° to 45°
Rafter Spacing (mm)
400
600
800
900
1200
1500
2000
2500
3000
3500
4000
4690
5820
6880
7890
8850
9790
10700
11600
4370
5420
6400
7340
8240
9110
9950
10800
3990
4950
5850
6700
7520
8320
9080
9830
3730
4630
5480
6280
7050
7790
8510
9210
3550
4420
5230
5990
6730
7440
8130
8790
4240
5260
6220
7130
8000
8840
9660
10500
3940
4890
5790
6630
7450
8230
8990
9730
3600
4470
5280
6060
6800
7510
8210
8880
3300
4190
4950
5680
6370
7040
7690
8320
3100
4000
4720
5420
6080
6720
7340
7950
3860
4890
5780
6630
7440
8230
8990
9730
3670
4560
5390
6170
6930
7660
8370
9060
3270
4160
4920
5640
6330
6990
7640
8270
3000
3900
4610
5280
5930
6550
7160
7750
2820
3720
4400
5040
5660
6260
6830
7390
3710
4750
5620
6440
7230
7990
8730
9450
3550
4420
5230
5990
6730
7440
8130
8790
3140
4040
4770
5470
6140
6790
7420
8030
2880
3780
4470
5130
5760
6360
6950
7520
2710
3610
4270
4890
5490
6070
6630
7180
3370
4420
5230
5990
6730
7440
8120
8790
3230
4120
4870
5580
6260
6920
7560
8180
2860
3760
4440
5090
5720
6320
6900
7470
2620
3490
4160
4770
5360
5920
6470
7000
2460
3280
3970
4560
5110
5650
6170
6680
3130
4180
4940
5670
6360
7030
7680
8310
2990
3890
4600
5280
5920
6550
7150
7740
2650
3540
4200
4820
5410
5980
6530
7070
2430
3240
3940
4510
5070
5600
6120
6620
2290
3050
3760
4310
4840
5350
5840
6320
2850
3800
4600
5270
5920
6540
7150
7740
2720
3620
4280
4910
5510
6090
6660
7200
2410
3210
3910
4480
5030
5560
6080
6570
2210
2950
3660
4200
4710
5210
5690
6160
2080
2770
3460
4010
4500
4970
5430
5880
2640
3520
4350
4990
5600
6190
6760
7320
2530
3370
4050
4640
5210
5760
6290
6810
2240
2980
3700
4240
4760
5260
5750
6220
2050
2730
3420
3970
4460
4930
5380
5830
1930
2570
3210
3790
4260
4700
5140
5560
2490
3320
4140
4770
5350
5910
6460
6990
2380
3170
3870
4440
4980
5510
6010
6510
2100
2810
3510
4050
4550
5030
5490
5940
1930
2570
3220
3800
4260
4710
5140
5570
1810
2420
3020
3620
4070
4490
4910
5310
2360
3150
3940
4590
5150
5690
6220
6730
2260
3010
3720
4270
4790
5300
5790
6260
2000
2670
3330
3900
4370
4840
5280
5720
1830
2440
3060
3650
4100
4530
4950
5360
1720
2300
2870
3450
3910
4330
4720
5110
2260
3010
3770
4440
4980
5500
6010
6510
2160
2880
3600
4130
4630
5120
5600
6060
1910
2550
3190
3770
4230
4680
5110
5530
1750
2340
2920
3510
3960
4380
4790
5180
1570
2200
2750
3300
3780
4180
4570
4950
© Copyright
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
37
GL12 (88mm width) Techlam Rafter Span Tables
Beam Size
(mm)
38
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
© Copyright
Wind Zone
(NZS3604)
Low
Medium
High
Very
High
Extra
High
Roof Weight: Light
Roof Pitch, α: 25° to 45°
Rafter Spacing (mm)
400
600
800
900
1200
1500
2000
2500
3000
3500
4000
5060
6280
7420
8510
9550
10600
11500
12500
4710
5840
6910
7920
8890
9830
10700
11600
4300
5330
6310
7230
8120
8970
9800
10600
4030
5000
5910
6770
7610
8410
9180
9940
3850
4770
5640
6470
7260
8020
8760
9490
4570
5670
6700
7690
8630
9540
10400
11300
4260
5280
6240
7160
8030
8880
9700
10500
3880
4820
5700
6530
7330
8110
8850
9580
3640
4520
5340
6120
6870
7600
8300
8980
3430
4310
5100
5840
6560
7250
7920
8570
4250
5280
6240
7150
8030
8880
9700
10500
3960
4910
5810
6660
7480
8260
9030
9770
3610
4490
5300
6080
6820
7540
8240
8920
3320
4200
4970
5700
6400
7070
7720
8360
3120
4010
4740
5440
6100
6750
7370
7980
4110
5120
6060
6950
7800
8620
9420
10200
3850
4770
5640
6470
7260
8020
8760
9490
3480
4360
5150
5900
6630
7320
8000
8660
3190
4080
4820
5530
6210
6860
7500
8110
3000
3900
4610
5280
5930
6550
7160
7750
3730
4770
5640
6460
7260
8020
8760
9480
3570
4440
5250
6020
6760
7470
8160
8830
3160
4050
4790
5490
6170
6820
7450
8060
2900
3800
4490
5150
5780
6390
6980
7550
2720
3630
4290
4910
5520
6100
6660
7210
3470
4510
5330
6110
6860
7590
8290
8970
3310
4200
4960
5690
6390
7060
7710
8350
2930
3830
4530
5200
5830
6450
7040
7620
2690
3590
4250
4870
5470
6040
6600
7140
2530
3370
4050
4650
5220
5770
6300
6820
3150
4200
4960
5690
6390
7060
7710
8350
3010
3910
4620
5300
5950
6570
7180
7770
2670
3550
4220
4830
5430
6000
6550
7090
2440
3260
3950
4530
5090
5620
6140
6650
2300
3060
3770
4320
4850
5370
5860
6340
2920
3900
4690
5380
6040
6680
7290
7890
2790
3700
4370
5010
5620
6220
6790
7350
2470
3300
3990
4570
5130
5670
6200
6710
2270
3020
3740
4280
4810
5320
5810
6290
2130
2840
3550
4090
4590
5070
5540
6000
2750
3670
4480
5140
5770
6380
6970
7540
2630
3510
4170
4790
5370
5940
6490
7020
2330
3100
3810
4370
4900
5420
5920
6410
2130
2850
3560
4090
4600
5080
5550
6010
2010
2680
3340
3910
4390
4850
5300
5730
2610
3480
4310
4950
5550
6140
6700
7260
2500
3330
4020
4600
5170
5710
6240
6750
2210
2950
3670
4200
4720
5220
5700
6170
2030
2700
3380
3940
4420
4890
5340
5780
1910
2540
3180
3760
4220
4670
5100
5520
2500
3330
4170
4780
5370
5940
6480
7020
2390
3180
3880
4450
5000
5530
6040
6530
2120
2820
3530
4070
4560
5040
5510
5960
1940
2590
3230
3810
4280
4730
5160
5590
1820
2430
3040
3640
4080
4510
4930
5330
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
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GL8 (42mm width) Techlam Rafter Span Tables
Beam Size
(mm)
Wind Zone
(NZS3604)
135x42
180x42
225x42
270x42
Low
315x42
360x42
135x42
180x42
225x42
270x42
Medium
315x42
360x42
135x42
180x42
225x42
270x42
High
315x42
360x42
135x42
180x42
225x42
270x42
Very
High
315x42
360x42
135x42
180x42
225x42
270x42
315x42
360x42
Back to Menu
Extra
High
Roof Weight: Heavy
Roof Pitch, α: 0° to 25°
Rafter Spacing (mm)
400
600
800
900
1200
1500
2000
2500
3000
3500
4000
3050
4070
5090
6110
7120
8140
3050
4070
5090
6110
7120
8140
3050
4070
5090
6110
6970
7710
2670
3560
4450
5330
6220
7110
2670
3560
4450
5330
6220
7110
2670
3560
4450
5330
6220
6970
2420
3230
4040
4850
5650
6460
2420
3230
4040
4850
5650
6460
2420
3230
4040
4850
5650
6460
2330
3110
3880
4660
5440
6210
2330
3110
3880
4660
5440
6210
2330
3110
3880
4660
5440
6210
2120
2820
3530
4230
4940
5650
2120
2820
3530
4230
4940
5650
2120
2820
3530
4230
4940
5650
1970
2620
3280
3930
4590
5240
1970
2620
3280
3930
4590
5240
1970
2620
3280
3930
4590
5240
1790
2380
2980
3570
4170
4760
1790
2380
2980
3570
4170
4760
1790
2380
2980
3570
4170
4760
1660
2210
2760
3320
3870
4420
1660
2210
2760
3320
3870
4420
1660
2210
2760
3320
3870
4420
1560
2080
2600
3120
3640
4160
1560
2080
2600
3120
3640
4160
1560
2080
2600
3120
3640
4160
1480
1980
2470
2960
3460
3950
1480
1980
2470
2960
3460
3950
1480
1980
2470
2960
3460
3950
1420
1890
2360
2830
3310
3780
1420
1890
2360
2830
3310
3780
1420
1890
2360
2830
3310
3780
3050
4070
5080
5820
6540
7220
3050
4070
4850
5560
6240
6900
2670
3560
4450
5260
5910
6530
2670
3560
4380
5020
5640
6230
2420
3230
4040
4850
5500
6070
2420
3230
4040
4670
5250
5800
2330
3110
3880
4660
5340
5900
2330
3110
3880
4540
5090
5630
2120
2820
3530
4230
4940
5490
2120
2820
3530
4220
4740
5240
1970
2620
3280
3930
4590
5190
1970
2620
3280
3930
4480
4960
1790
2380
2980
3570
4170
4760
1790
2380
2980
3570
4170
4610
1660
2210
2760
3320
3870
4420
1660
2210
2760
3320
3870
4360
1560
2080
2600
3120
3640
4160
1530
2080
2600
3120
3640
4160
1480
1980
2470
2960
3460
3950
1410
1920
2420
2920
3420
3910
1420
1890
2360
2830
3310
3780
1310
1790
2260
2730
3190
3660
© Copyright
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
39
GL8 (65mm width) Techlam Rafter Span Tables
Beam Size
(mm)
40
135x65
180x65
225x65
270x65
315x65
360x65
405x65
450x65
135x65
180x65
225x65
270x65
315x65
360x65
405x65
450x65
135x65
180x65
225x65
270x65
315x65
360x65
405x65
450x65
135x65
180x65
225x65
270x65
315x65
360x65
405x65
450x65
135x65
180x65
225x65
270x65
315x65
360x65
405x65
450x65
© Copyright
Wind Zone
(NZS3604)
Low
Medium
High
Very
High
Extra
High
Roof Weight: Heavy
Roof Pitch, α: 0° to 25°
Rafter Spacing (mm)
400
600
800
900
1200
1500
2000
2500
3000
3500
4000
3530
4710
5890
7060
8240
9420
10600
11800
3530
4710
5890
7060
8240
9420
10300
11100
3530
4710
5890
6930
7780
8600
9390
10200
3530
4710
5660
6490
7290
8060
8800
9530
3530
4570
5410
6200
6960
7690
8400
9090
3090
4110
5140
6170
7200
8230
9260
10300
3090
4110
5140
6170
7200
8230
9260
10100
3090
4110
5140
6170
7030
7770
8490
9190
3090
4110
5120
5870
6590
7280
7950
8610
3090
4110
4890
5600
6290
6950
7590
8220
2800
3740
4670
5610
6540
7480
8410
9340
2800
3740
4670
5610
6540
7480
8410
9340
2800
3740
4670
5610
6540
7230
7900
8550
2800
3740
4670
5460
6130
6780
7400
8010
2800
3740
4550
5210
5850
6470
7060
7650
2700
3590
4490
5390
6290
7190
8090
8980
2700
3590
4490
5390
6290
7190
8090
8980
2700
3590
4490
5390
6290
7020
7670
8300
2700
3590
4490
5300
5950
6580
7190
7780
2700
3590
4410
5060
5680
6280
6860
7420
2450
3270
4080
4900
5710
6530
7350
8160
2450
3270
4080
4900
5710
6530
7350
8160
2450
3270
4080
4900
5710
6530
7140
7720
2450
3270
4080
4900
5540
6120
6690
7240
2450
3270
4080
4710
5290
5840
6380
6910
2270
3030
3790
4550
5300
6060
6820
7580
2270
3030
3790
4550
5300
6060
6820
7580
2270
3030
3790
4550
5300
6060
6750
7300
2270
3030
3790
4550
5240
5790
6320
6850
2270
3030
3790
4450
5000
5530
6040
6530
2070
2750
3440
4130
4820
5510
6200
6880
2070
2750
3440
4130
4820
5510
6200
6880
2070
2750
3440
4130
4820
5510
6200
6800
2070
2750
3440
4130
4820
5390
5890
6370
2070
2750
3440
4130
4650
5140
5620
6080
1920
2560
3200
3830
4470
5110
5750
6390
1920
2560
3200
3830
4470
5110
5750
6390
1920
2560
3200
3830
4470
5110
5750
6390
1920
2560
3200
3830
4470
5100
5570
6020
1920
2560
3200
3830
4400
4860
5310
5750
1800
2410
3010
3610
4210
4810
5410
6010
1800
2410
3010
3610
4210
4810
5410
6010
1800
2410
3010
3610
4210
4810
5410
6010
1800
2410
3010
3610
4210
4810
5320
5760
1800
2410
3010
3610
4200
4650
5080
5490
1710
2290
2860
3430
4000
4570
5140
5710
1710
2290
2860
3430
4000
4570
5140
5710
1710
2290
2860
3430
4000
4570
5140
5710
1710
2290
2860
3430
4000
4570
5120
5540
1710
2290
2860
3430
4000
4470
4880
5290
1640
2190
2730
3280
3830
4370
4920
5460
1640
2190
2730
3280
3830
4370
4920
5460
1640
2190
2730
3280
3830
4370
4920
5460
1640
2190
2730
3280
3830
4370
4920
5360
1640
2190
2730
3280
3830
4330
4720
5110
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
Back to Menu
GL8 (88mm width) Techlam Rafter Span Tables
Beam Size
(mm)
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
Back to Menu
Wind Zone
(NZS3604)
Low
Medium
High
Very
High
Extra
High
Roof Weight: Heavy
Roof Pitch, α: 0° to 25°
Rafter Spacing (mm)
400
600
800
900
1200
1500
2000
2500
3000
3500
4000
3910
5210
6510
7810
9120
10400
11700
12900
3910
5210
6510
7810
9120
10200
11100
12000
3910
5210
6510
7480
8390
9280
10100
11000
3910
5170
6110
7000
7860
8690
9490
10300
3910
4930
5830
6690
7510
8300
9060
9810
3410
4550
5690
6830
7960
9100
10200
11400
3410
4550
5690
6830
7960
9100
10000
10900
3410
4550
5690
6750
7580
8380
9160
9910
3410
4550
5520
6330
7110
7850
8580
9280
3410
4460
5270
6040
6780
7500
8190
8860
3100
4130
5170
6200
7240
8270
9300
10300
3100
4130
5170
6200
7240
8270
9300
10100
3100
4130
5170
6200
7060
7800
8520
9220
3100
4130
5140
5890
6610
7310
7980
8640
3100
4130
4900
5620
6310
6980
7620
8250
2980
3980
4970
5960
6960
7950
8940
9940
2980
3980
4970
5960
6960
7950
8940
9810
2980
3980
4970
5960
6850
7570
8270
8950
2980
3980
4970
5720
6420
7100
7750
8390
2980
3980
4760
5460
6130
6770
7400
8010
2710
3610
4520
5420
6320
7220
8130
9030
2710
3610
4520
5420
6320
7220
8130
9030
2710
3610
4520
5420
6320
7050
7700
8330
2710
3610
4520
5320
5970
6600
7210
7810
2710
3610
4430
5080
5700
6300
6890
7450
2520
3350
4190
5030
5870
6710
7540
8380
2520
3350
4190
5030
5870
6710
7540
8380
2520
3350
4190
5030
5870
6670
7280
7880
2520
3350
4190
5030
5650
6250
6820
7380
2520
3350
4190
4800
5390
5960
6510
7050
2290
3050
3810
4570
5330
6090
6850
7620
2290
3050
3810
4570
5330
6090
6850
7620
2290
3050
3810
4570
5330
6090
6780
7330
2290
3050
3810
4570
5260
5810
6350
6870
2290
3050
3810
4470
5020
5550
6060
6560
2120
2830
3540
4240
4950
5660
6360
7070
2120
2830
3540
4240
4950
5660
6360
7070
2120
2830
3540
4240
4950
5660
6360
6930
2120
2830
3540
4240
4950
5500
6000
6500
2120
2830
3540
4230
4750
5250
5730
6200
2000
2660
3330
3990
4660
5320
5990
6650
2000
2660
3330
3990
4660
5320
5990
6650
2000
2660
3330
3990
4660
5320
5990
6630
2000
2660
3330
3990
4660
5250
5740
6210
2000
2660
3330
3990
4540
5010
5480
5930
1900
2530
3160
3790
4420
5060
5690
6320
1900
2530
3160
3790
4420
5060
5690
6320
1900
2530
3160
3790
4420
5060
5690
6320
1900
2530
3160
3790
4420
5050
5520
5970
1900
2530
3160
3790
4360
4820
5270
5700
1810
2420
3020
3630
4230
4840
5440
6050
1810
2420
3020
3630
4230
4840
5440
6050
1810
2420
3020
3630
4230
4840
5440
6050
1810
2420
3020
3630
4230
4840
5340
5780
1810
2420
3020
3630
4220
4670
5100
5520
© Copyright
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
41
GL8 (42mm width) Techlam Rafter Span Tables
Beam Size
(mm)
Wind Zone
(NZS3604)
600
800
900
1200
1500
2000
2500
3000
3500
4000
Low
2460
3270
4090
4910
5730
6550
2230
2970
3720
4460
5210
5950
2150
2860
3580
4290
5010
5720
1950
2600
3250
3900
4550
5200
1810
2410
3020
3620
4220
4820
1640
2190
2740
3290
3840
4380
1530
2030
2540
3050
3560
4070
1440
1910
2390
2870
3350
3830
1360
1820
2270
2730
3180
3640
1300
1740
2170
2610
3040
3480
Medium
2810
3750
4690
5620
6560
7460
2460
3270
4090
4910
5730
6550
2230
2970
3720
4460
5210
5950
2150
2860
3580
4290
5010
5720
1950
2600
3250
3900
4550
5200
1810
2410
3020
3620
4220
4820
1640
2190
2740
3290
3840
4380
1530
2030
2540
3050
3560
4070
1440
1910
2390
2870
3350
3830
1360
1820
2270
2730
3180
3640
1300
1740
2170
2610
3040
3480
High
2810
3750
4690
5490
6160
6810
2460
3270
4090
4910
5570
6150
2230
2970
3720
4460
5180
5730
2150
2860
3580
4290
5010
5560
1950
2600
3250
3900
4550
5170
1810
2410
3020
3620
4220
4820
1640
2190
2740
3290
3840
4380
1530
2030
2540
3050
3560
4070
1440
1910
2390
2870
3350
3830
1350
1820
2270
2730
3180
3640
1260
1700
2130
2560
2990
3420
2810
3750
4490
5140
5770
6380
2720
3620
4280
4910
5510
6090
2460
3270
4050
4650
5220
5770
2380
3170
3870
4440
4980
5500
2230
2970
3720
4320
4850
5370
2160
2880
3600
4130
4630
5120
2150
2860
3580
4200
4710
5210
2080
2770
3460
4010
4500
4970
1950
2600
3250
3900
4390
4850
1890
2510
3140
3730
4190
4630
1810
2410
3020
3620
4150
4590
1750
2330
2920
3500
3960
4380
1620
2190
2740
3290
3840
4270
1480
2050
2610
3150
3690
4070
1440
1960
2480
3000
3510
4020
1300
1810
2310
2810
3300
3780
1290
1780
2260
2730
3200
3670
1160
1640
2100
2550
3000
3440
1180
1640
2080
2520
2950
3390
1040
1500
1930
2350
2770
3180
1090
1520
1940
2350
2760
3160
951
1380
1790
2190
2580
2970
315x42
360x42
135x42
180x42
225x42
42
270x42
315x42
360x42
135x42
180x42
225x42
270x42
315x42
360x42
135x42
180x42
225x42
270x42
Very
High
315x42
360x42
135x42
180x42
225x42
270x42
315x42
360x42
© Copyright
Rafter Spacing (mm)
400
180x42
225x42
Roof Pitch, α: 25° to 45°
2810
3750
4690
5620
6560
7500
135x42
270x42
Roof Weight: Heavy
Extra
High
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
Back to Menu
GL8 (65mm width) Techlam Rafter Span Tables
Beam Size
(mm)
135x65
180x65
225x65
270x65
315x65
360x65
405x65
450x65
135x65
180x65
225x65
270x65
315x65
360x65
405x65
450x65
135x65
180x65
225x65
270x65
315x65
360x65
405x65
450x65
135x65
180x65
225x65
270x65
315x65
360x65
405x65
450x65
135x65
180x65
225x65
270x65
315x65
360x65
405x65
450x65
Back to Menu
Wind Zone
(NZS3604)
Low
Medium
High
Very
High
Extra
High
Roof Weight: Heavy
Roof Pitch, α: 25° to 45°
Rafter Spacing (mm)
400
600
800
900
1200
1500
2000
2500
3000
3500
4000
3250
4340
5420
6500
7590
8670
9750
10600
3250
4340
5420
6500
7530
8320
9090
9840
3250
4340
5340
6120
6870
7600
8300
8980
3250
4230
5000
5740
6440
7120
7770
8410
3150
4040
4780
5480
6150
6790
7420
8030
2840
3790
4730
5680
6630
7570
8520
9470
2840
3790
4730
5680
6630
7520
8210
8890
2840
3790
4730
5530
6210
6860
7500
8110
2840
3790
4520
5180
5820
6430
7030
7600
2750
3650
4310
4950
5550
6140
6710
7260
2580
3440
4300
5160
6020
6880
7740
8600
2580
3440
4300
5160
6020
6880
7640
8270
2580
3440
4300
5150
5780
6390
6980
7550
2580
3440
4210
4820
5410
5980
6540
7080
2500
3330
4020
4600
5170
5710
6240
6750
2480
3310
4140
4960
5790
6620
7440
8270
2480
3310
4140
4960
5790
6620
7420
8030
2480
3310
4140
4960
5610
6200
6770
7330
2480
3310
4080
4680
5260
5810
6350
6870
2400
3200
3900
4470
5020
5550
6060
6560
2250
3010
3760
4510
5260
6010
6760
7510
2250
3010
3760
4510
5260
6010
6760
7470
2250
3010
3760
4510
5220
5770
6300
6820
2250
3010
3760
4360
4890
5410
5910
6390
2180
2910
3630
4160
4670
5160
5640
6100
2090
2790
3490
4190
4880
5580
6280
6980
2090
2790
3490
4190
4880
5580
6280
6980
2090
2790
3490
4190
4880
5460
5960
6450
2090
2790
3490
4120
4630
5110
5590
6050
2020
2700
3370
3930
4420
4880
5330
5770
1900
2540
3170
3800
4440
5070
5700
6340
1900
2540
3170
3800
4440
5070
5700
6340
1900
2540
3170
3800
4440
5070
5550
6000
1900
2540
3170
3800
4310
4760
5200
5630
1840
2450
3070
3660
4110
4540
4960
5370
1770
2350
2940
3530
4120
4710
5300
5880
1770
2350
2940
3530
4120
4710
5300
5880
1770
2350
2940
3530
4120
4710
5250
5680
1770
2350
2940
3530
4070
4500
4920
5320
1680
2280
2850
3420
3890
4300
4690
5080
1660
2210
2770
3320
3880
4430
4980
5540
1660
2210
2770
3320
3880
4430
4980
5540
1660
2210
2770
3320
3880
4430
4980
5430
1650
2210
2770
3320
3880
4300
4700
5080
1510
2090
2650
3210
3710
4110
4480
4850
1580
2100
2630
3160
3680
4210
4730
5260
1580
2100
2630
3160
3680
4210
4730
5260
1580
2100
2630
3160
3680
4210
4730
5220
1520
2070
2620
3160
3680
4140
4520
4890
1380
1920
2440
2960
3470
3950
4310
4670
1510
2010
2520
3020
3520
4020
4530
5030
1510
2010
2520
3020
3520
4020
4530
5030
1510
2010
2520
3020
3520
4020
4530
5030
1410
1930
2440
2950
3450
3950
4370
4730
1270
1780
2270
2760
3240
3720
4170
4520
© Copyright
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
43
GL8 (88mm width) Techlam Rafter Span Tables
Beam Size
(mm)
44
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
© Copyright
Wind Zone
(NZS3604)
Low
Medium
High
Very
High
Extra
High
Roof Weight: Heavy
Roof Pitch, α: 25° to 45°
Rafter Spacing (mm)
400
600
800
900
1200
1500
2000
2500
3000
3500
4000
3600
4800
5990
7190
8390
9590
10500
11400
3600
4800
5990
7190
8120
8970
9800
10600
3600
4800
5760
6600
7410
8190
8950
9690
3600
4560
5400
6190
6950
7680
8390
9080
3480
4360
5150
5910
6630
7330
8000
8660
3140
4190
5240
6280
7330
8380
9430
10300
3140
4190
5240
6280
7330
8110
8860
9590
3140
4190
5200
5970
6700
7400
8090
8750
3140
4120
4880
5590
6280
6940
7580
8200
3040
3940
4650
5340
5990
6620
7230
7830
2860
3810
4760
5710
6660
7610
8560
9520
2860
3810
4760
5710
6660
7550
8240
8920
2860
3810
4760
5550
6230
6890
7530
8140
2860
3810
4540
5200
5840
6460
7050
7630
2760
3660
4330
4970
5570
6160
6730
7280
2750
3660
4580
5490
6400
7320
8230
9150
2750
3660
4580
5490
6400
7320
8000
8660
2750
3660
4580
5390
6050
6690
7310
7910
2750
3660
4410
5050
5670
6270
6850
7410
2660
3540
4210
4820
5410
5980
6540
7070
2490
3330
4160
4990
5820
6650
7480
8310
2490
3330
4160
4990
5820
6650
7450
8060
2490
3330
4160
4990
5630
6230
6800
7360
2490
3330
4100
4700
5280
5830
6370
6900
2410
3220
3910
4490
5040
5570
6080
6580
2320
3090
3860
4630
5400
6170
6950
7720
2320
3090
3860
4630
5400
6170
6950
7620
2320
3090
3860
4630
5330
5890
6430
6960
2320
3090
3860
4450
4990
5520
6030
6520
2240
2990
3700
4240
4760
5270
5750
6230
2100
2800
3510
4210
4910
5610
6310
7010
2100
2800
3510
4210
4910
5610
6310
7010
2100
2800
3510
4210
4910
5480
5980
6480
2100
2800
3510
4140
4640
5130
5610
6070
2040
2710
3390
3950
4430
4900
5350
5790
1950
2600
3250
3910
4560
5210
5860
6510
1950
2600
3250
3910
4560
5210
5860
6510
1950
2600
3250
3910
4560
5180
5660
6130
1950
2600
3250
3910
4390
4860
5300
5740
1890
2520
3150
3740
4190
4630
5060
5480
1840
2450
3060
3680
4290
4900
5510
6130
1840
2450
3060
3680
4290
4900
5510
6130
1840
2450
3060
3680
4290
4900
5410
5850
1840
2450
3060
3680
4200
4640
5070
5480
1780
2370
2960
3560
4010
4430
4840
5230
1750
2330
2910
3490
4070
4650
5240
5820
1750
2330
2910
3490
4070
4650
5240
5820
1750
2330
2910
3490
4070
4650
5200
5630
1750
2330
2910
3490
4040
4460
4880
5280
1640
2250
2810
3380
3850
4260
4650
5040
1670
2230
2780
3340
3900
4450
5010
5570
1670
2230
2780
3340
3900
4450
5010
5570
1670
2230
2780
3340
3900
4450
5010
5450
1670
2230
2780
3340
3900
4320
4720
5100
1520
2100
2670
3230
3730
4120
4500
4870
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
Back to Menu
GL10 (42mm width) Techlam Rafter Span Tables
Beam Size
(mm)
Wind Zone
(NZS3604)
135x42
180x42
225x42
270x42
Low
315x42
360x42
135x42
180x42
225x42
270x42
Medium
315x42
360x42
135x42
180x42
225x42
270x42
High
315x42
360x42
135x42
180x42
225x42
270x42
Very
High
315x42
360x42
135x42
180x42
225x42
270x42
315x42
360x42
Back to Menu
Extra
High
Roof Weight: Heavy
Roof Pitch, α: 0° to 25°
Rafter Spacing (mm)
400
600
800
900
1200
1500
2000
2500
3000
3500
4000
3290
4390
5480
6580
7670
8770
3290
4390
5480
6580
7670
8770
2870
3830
4790
5750
6700
7660
2870
3830
4790
5750
6700
7660
2610
3480
4350
5220
6090
6960
2610
3480
4350
5220
6090
6960
2510
3350
4180
5020
5860
6690
2510
3350
4180
5020
5860
6690
2280
3040
3800
4560
5320
6080
2280
3040
3800
4560
5320
6080
2120
2820
3530
4230
4940
5650
2120
2820
3530
4230
4940
5650
1920
2560
3210
3850
4490
5130
1920
2560
3210
3850
4490
5130
1790
2380
2980
3570
4170
4760
1790
2380
2980
3570
4170
4760
1680
2240
2800
3360
3920
4480
1680
2240
2800
3360
3920
4480
1600
2130
2660
3190
3720
4260
1600
2130
2660
3190
3720
4260
1530
2040
2540
3050
3560
4070
1530
2040
2540
3050
3560
4070
3290
4390
5480
6570
7370
8150
2870
3830
4790
5750
6660
7370
2610
3480
4350
5220
6090
6850
2510
3350
4180
5020
5860
6660
2280
3040
3800
4560
5320
6080
2120
2820
3530
4230
4940
5650
1920
2560
3210
3850
4490
5130
1790
2380
2980
3570
4170
4760
1680
2240
2800
3360
3920
4480
1600
2130
2660
3190
3720
4260
1530
2040
2540
3050
3560
4070
3290
4390
5370
6160
6910
7640
3290
4340
5130
5880
6600
7290
2870
3830
4790
5560
6240
6900
2870
3830
4630
5310
5960
6590
2610
3480
4350
5180
5810
6420
2610
3480
4310
4940
5550
6130
2510
3350
4180
5020
5640
6240
2510
3350
4180
4800
5390
5950
2280
3040
3800
4560
5250
5800
2280
3040
3800
4460
5010
5540
2120
2820
3530
4230
4940
5490
2120
2820
3530
4220
4740
5240
1920
2560
3210
3850
4490
5110
1920
2560
3210
3850
4410
4880
1790
2380
2980
3570
4170
4760
1790
2380
2980
3570
4170
4610
1680
2240
2800
3360
3920
4480
1660
2240
2800
3360
3920
4410
1600
2130
2660
3190
3720
4260
1520
2070
2610
3150
3680
4210
1530
2040
2540
3050
3560
4070
1420
1930
2440
2940
3440
3940
© Copyright
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
45
GL10 (65mm width) Techlam Rafter Span Tables
Beam Size
(mm)
46
135x65
180x65
225x65
270x65
315x65
360x65
405x65
450x65
135x65
180x65
225x65
270x65
315x65
360x65
405x65
450x65
135x65
180x65
225x65
270x65
315x65
360x65
405x65
450x65
135x65
180x65
225x65
270x65
315x65
360x65
405x65
450x65
135x65
180x65
225x65
270x65
315x65
360x65
405x65
450x65
© Copyright
Wind Zone
(NZS3604)
Low
Medium
High
Very
High
Extra
High
Roof Pitch, α: 0° to 25°
Roof Weight: Heavy
Rafter Spacing (mm)
400
600
800
900
1200
1500
2000
2500
3000
3500
4000
3800
5070
6340
7610
8880
10100
11400
12600
3800
5070
6340
7610
8880
9960
10900
11800
3800
5070
6340
7330
8230
9090
9930
10700
3800
5070
5990
6870
7710
8520
9310
10100
3800
4840
5720
6550
7360
8130
8880
9610
3320
4430
5540
6650
7750
8860
9970
11100
3320
4430
5540
6650
7750
8860
9830
10600
3320
4430
5540
6620
7430
8220
8970
9710
3320
4430
5410
6200
6960
7700
8410
9100
3320
4370
5170
5920
6650
7350
8030
8690
3020
4030
5030
6040
7050
8050
9060
10100
3020
4030
5030
6040
7050
8050
9060
9900
3020
4030
5030
6040
6920
7650
8350
9040
3020
4030
5030
5770
6480
7160
7830
8470
3020
4030
4810
5510
6190
6840
7470
8080
2900
3870
4840
5810
6770
7740
8710
9680
2900
3870
4840
5810
6770
7740
8710
9610
2900
3870
4840
5810
6720
7420
8110
8780
2900
3870
4840
5610
6290
6960
7600
8220
2900
3870
4670
5350
6010
6640
7250
7850
2640
3520
4400
5280
6160
7030
7910
8790
2640
3520
4400
5280
6160
7030
7910
8790
2640
3520
4400
5280
6160
6910
7550
8170
2640
3520
4400
5220
5860
6470
7070
7650
2640
3520
4340
4980
5590
6180
6750
7300
2450
3270
4080
4900
5710
6530
7350
8160
2450
3270
4080
4900
5710
6530
7350
8160
2450
3270
4080
4900
5710
6530
7140
7720
2450
3270
4080
4900
5540
6120
6690
7240
2450
3270
4080
4710
5290
5840
6380
6910
2230
2970
3710
4450
5190
5930
6670
7420
2230
2970
3710
4450
5190
5930
6670
7420
2230
2970
3710
4450
5190
5930
6640
7190
2230
2970
3710
4450
5150
5700
6220
6740
2230
2970
3710
4380
4920
5440
5940
6430
2070
2750
3440
4130
4820
5510
6200
6880
2070
2750
3440
4130
4820
5510
6200
6880
2070
2750
3440
4130
4820
5510
6200
6800
2070
2750
3440
4130
4820
5390
5890
6370
2070
2750
3440
4130
4650
5140
5620
6080
1940
2590
3240
3890
4540
5180
5830
6480
1940
2590
3240
3890
4540
5180
5830
6480
1940
2590
3240
3890
4540
5180
5830
6480
1940
2590
3240
3890
4540
5150
5620
6090
1940
2590
3240
3890
4450
4910
5370
5810
1850
2460
3080
3690
4310
4920
5540
6150
1850
2460
3080
3690
4310
4920
5540
6150
1850
2460
3080
3690
4310
4920
5540
6150
1850
2460
3080
3690
4310
4920
5410
5860
1850
2460
3080
3690
4280
4730
5170
5590
1770
2350
2940
3530
4120
4710
5300
5890
1770
2350
2940
3530
4120
4710
5300
5890
1770
2350
2940
3530
4120
4710
5300
5890
1770
2350
2940
3530
4120
4710
5230
5660
1770
2350
2940
3530
4120
4570
5000
5410
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
Back to Menu
GL10 (88mm width) Techlam Rafter Span Tables
Beam Size
(mm)
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
Back to Menu
Wind Zone
(NZS3604)
Low
Medium
High
Very
High
Extra
High
Roof Weight: Heavy
Roof Pitch, α: 0° to 25°
Rafter Spacing (mm)
400
600
800
900
1200
1500
2000
2500
3000
3500
4000
4210
5610
7010
8420
9820
11200
12600
13600
4210
5610
7010
8420
9720
10700
11700
12700
4210
5610
6890
7900
8870
9810
10700
11600
4210
5460
6460
7410
8310
9190
10000
10900
4200
5220
6170
7070
7940
8770
9580
10400
3680
4900
6130
7350
8580
9800
11000
12300
3680
4900
6130
7350
8580
9710
10600
11500
3680
4900
6130
7140
8020
8860
9680
10500
3680
4900
5840
6690
7510
8300
9070
9820
3680
4710
5570
6390
7170
7930
8660
9370
3340
4450
5570
6680
7790
8910
10000
11100
3340
4450
5570
6680
7790
8910
9870
10700
3340
4450
5570
6650
7460
8250
9010
9750
3340
4450
5430
6230
6990
7730
8440
9140
3340
4390
5190
5940
6670
7380
8060
8720
3210
4280
5350
6420
7490
8560
9640
10700
3210
4280
5350
6420
7490
8560
9580
10400
3210
4280
5350
6420
7240
8010
8750
9470
3210
4280
5270
6050
6790
7500
8200
8870
3210
4260
5030
5770
6480
7160
7820
8470
2920
3890
4860
5840
6810
7780
8750
9730
2920
3890
4860
5840
6810
7780
8750
9650
2920
3890
4860
5840
6740
7450
8140
8810
2920
3890
4860
5630
6320
6980
7630
8260
2920
3890
4690
5370
6030
6670
7280
7880
2710
3610
4520
5420
6320
7220
8130
9030
2710
3610
4520
5420
6320
7220
8130
9030
2710
3610
4520
5420
6320
7050
7700
8330
2710
3610
4520
5320
5970
6600
7210
7810
2710
3610
4430
5080
5700
6300
6890
7450
2460
3280
4100
4920
5740
6560
7380
8200
2460
3280
4100
4920
5740
6560
7380
8200
2460
3280
4100
4920
5740
6560
7160
7750
2460
3280
4100
4920
5560
6150
6710
7270
2460
3280
4100
4730
5310
5870
6410
6930
2290
3050
3810
4570
5330
6090
6850
7620
2290
3050
3810
4570
5330
6090
6850
7620
2290
3050
3810
4570
5330
6090
6780
7330
2290
3050
3810
4570
5260
5810
6350
6870
2290
3050
3810
4470
5020
5550
6060
6560
2150
2870
3580
4300
5020
5730
6450
7170
2150
2870
3580
4300
5020
5730
6450
7170
2150
2870
3580
4300
5020
5730
6450
7010
2150
2870
3580
4300
5020
5550
6070
6570
2150
2870
3580
4270
4800
5300
5790
6270
2040
2720
3400
4090
4770
5450
6130
6810
2040
2720
3400
4090
4770
5450
6130
6810
2040
2720
3400
4090
4770
5450
6130
6740
2040
2720
3400
4090
4770
5340
5840
6320
2040
2720
3400
4090
4610
5100
5570
6030
1950
2600
3260
3910
4560
5210
5860
6510
1950
2600
3260
3910
4560
5210
5860
6510
1950
2600
3260
3910
4560
5210
5860
6510
1950
2600
3260
3910
4560
5170
5650
6110
1950
2600
3260
3910
4460
4930
5390
5830
© Copyright
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
47
GL10 (42mm width) Techlam Rafter Span Tables
Beam Size
(mm)
Wind Zone
(NZS3604)
135x42
180x42
225x42
270x42
Low
315x42
360x42
135x42
180x42
225x42
48
270x42
Medium
315x42
360x42
135x42
180x42
225x42
270x42
High
315x42
360x42
135x42
180x42
225x42
270x42
Very
High
315x42
360x42
135x42
180x42
225x42
270x42
315x42
360x42
© Copyright
Extra
High
Roof Weight: Heavy
Roof Pitch, α: 25° to 45°
Rafter Spacing (mm)
400
600
800
900
1200
1500
2000
2500
3000
3500
4000
3030
4040
5050
6060
7070
8070
3030
4040
5050
6060
7070
7890
2650
3530
4410
5290
6170
7050
2650
3530
4410
5290
6170
7050
2400
3200
4010
4810
5610
6410
2400
3200
4010
4810
5610
6410
2310
3080
3850
4620
5390
6160
2310
3080
3850
4620
5390
6160
2100
2800
3500
4200
4900
5600
2100
2800
3500
4200
4900
5600
1950
2600
3250
3900
4550
5200
1950
2600
3250
3900
4550
5200
1770
2360
2950
3540
4130
4720
1770
2360
2950
3540
4130
4720
1640
2190
2740
3290
3840
4380
1640
2190
2740
3290
3840
4380
1550
2060
2580
3090
3610
4130
1550
2060
2580
3090
3610
4130
1470
1960
2450
2940
3430
3920
1470
1960
2450
2940
3430
3920
1410
1870
2340
2810
3280
3750
1410
1870
2340
2810
3280
3750
3030
4040
5050
5800
6510
7200
3030
4010
4740
5440
6100
6750
2930
3830
4530
5190
5830
6440
2650
3530
4410
5240
5890
6510
2650
3530
4290
4910
5520
6100
2560
3410
4090
4690
5260
5820
2400
3200
4010
4810
5480
6050
2400
3200
3990
4570
5130
5670
2330
3100
3810
4360
4900
5420
2310
3080
3850
4620
5320
5880
2310
3080
3850
4440
4980
5510
2240
2980
3700
4240
4760
5260
2100
2800
3500
4200
4900
5470
2100
2800
3500
4130
4640
5130
2030
2710
3390
3940
4430
4890
1950
2600
3250
3900
4550
5170
1950
2600
3250
3900
4390
4850
1890
2510
3140
3730
4190
4630
1770
2360
2950
3540
4130
4720
1760
2360
2950
3540
4080
4510
1610
2220
2810
3400
3900
4310
1640
2190
2740
3290
3840
4380
1560
2120
2680
3230
3780
4270
1420
1970
2500
3030
3560
4070
1550
2060
2580
3090
3610
4130
1410
1930
2440
2940
3450
3950
1270
1780
2270
2750
3240
3710
1460
1960
2450
2940
3430
3920
1290
1770
2250
2720
3190
3650
1150
1630
2090
2540
2990
3430
1360
1830
2290
2760
3220
3680
1190
1650
2100
2540
2970
3410
1050
1510
1940
2370
2780
3200
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
Back to Menu
GL10 (65mm width) Techlam Rafter Span Tables
Beam Size
(mm)
135x65
180x65
225x65
270x65
315x65
360x65
405x65
450x65
135x65
180x65
225x65
270x65
315x65
360x65
405x65
450x65
135x65
180x65
225x65
270x65
315x65
360x65
405x65
450x65
135x65
180x65
225x65
270x65
315x65
360x65
405x65
450x65
135x65
180x65
225x65
270x65
315x65
360x65
405x65
450x65
Back to Menu
Wind Zone
(NZS3604)
Low
Medium
High
Very
High
Extra
High
Roof Weight: Heavy
Roof Pitch, α: 25° to 45°
Rafter Spacing (mm)
400
600
800
900
1200
1500
2000
2500
3000
3500
4000
3500
4670
5840
7000
8170
9340
10300
11200
3500
4670
5840
7000
7960
8800
9610
10400
3500
4670
5650
6470
7270
8030
8770
9490
3500
4470
5290
6060
6810
7530
8220
8900
3390
4270
5050
5790
6500
7180
7850
8490
3060
4080
5100
6120
7140
8160
9180
10100
3060
4080
5100
6120
7140
7950
8680
9400
3060
4080
5100
5850
6570
7260
7930
8580
3060
4040
4780
5480
6150
6800
7430
8040
2960
3860
4560
5230
5870
6490
7090
7670
2780
3710
4630
5560
6490
7410
8340
9270
2780
3710
4630
5560
6490
7400
8080
8750
2780
3710
4630
5440
6110
6750
7380
7980
2780
3710
4450
5100
5730
6330
6910
7480
2690
3590
4250
4870
5460
6040
6600
7140
2670
3560
4450
5350
6240
7130
8020
8910
2670
3560
4450
5350
6240
7130
7850
8490
2670
3560
4450
5280
5930
6560
7160
7750
2670
3560
4320
4950
5560
6140
6710
7260
2590
3450
4120
4730
5310
5870
6410
6930
2430
3240
4050
4860
5670
6480
7290
8090
2430
3240
4050
4860
5670
6480
7290
7900
2430
3240
4050
4860
5520
6100
6670
7210
2430
3240
4020
4610
5170
5720
6250
6760
2350
3130
3840
4400
4940
5460
5960
6450
2250
3010
3760
4510
5260
6010
6760
7510
2250
3010
3760
4510
5260
6010
6760
7470
2250
3010
3760
4510
5220
5770
6300
6820
2250
3010
3760
4360
4890
5410
5910
6390
2180
2910
3630
4160
4670
5160
5640
6100
2050
2730
3410
4100
4780
5460
6140
6830
2050
2730
3410
4100
4780
5460
6140
6830
2050
2730
3410
4100
4780
5370
5870
6350
2050
2730
3410
4060
4550
5030
5500
5950
1980
2640
3300
3870
4350
4800
5250
5680
1900
2540
3170
3800
4440
5070
5700
6340
1900
2540
3170
3800
4440
5070
5700
6340
1900
2540
3170
3800
4440
5070
5550
6000
1900
2540
3170
3800
4310
4760
5200
5630
1820
2450
3070
3660
4110
4540
4960
5370
1790
2390
2980
3580
4180
4770
5370
5960
1790
2390
2980
3580
4180
4770
5370
5960
1790
2390
2980
3580
4180
4770
5300
5740
1790
2390
2980
3580
4110
4550
4970
5380
1640
2260
2860
3460
3930
4340
4740
5130
1700
2270
2830
3400
3970
4530
5100
5670
1700
2270
2830
3400
3970
4530
5100
5670
1700
2270
2830
3400
3970
4530
5100
5520
1650
2240
2820
3400
3960
4380
4780
5170
1500
2080
2640
3190
3740
4180
4560
4940
1630
2170
2710
3250
3790
4340
4880
5420
1630
2170
2710
3250
3790
4340
4880
5420
1630
2170
2710
3250
3790
4340
4880
5340
1530
2090
2630
3180
3720
4230
4620
5000
1390
1930
2460
2980
3490
4010
4410
4780
© Copyright
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
49
GL10 (88mm width) Techlam Rafter Span Tables
Beam Size
(mm)
50
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
© Copyright
Wind Zone
(NZS3604)
Low
Medium
High
Very
High
Extra
High
Roof Weight: Heavy
Roof Pitch, α: 25° to 45°
Rafter Spacing (mm)
400
600
800
900
1200
1500
2000
2500
3000
3500
4000
3870
5170
6460
7750
9040
10200
11100
12100
3870
5170
6460
7650
8590
9490
10400
11200
3870
5150
6090
6980
7840
8660
9460
10200
3870
4830
5710
6540
7340
8120
8870
9600
3710
4610
5450
6240
7010
7750
8460
9160
3390
4510
5640
6770
7900
9030
10100
10900
3390
4510
5640
6770
7760
8570
9370
10100
3390
4510
5500
6310
7080
7830
8550
9250
3390
4360
5160
5910
6640
7340
8010
8670
3270
4160
4920
5640
6330
7000
7650
8280
3080
4100
5130
6150
7180
8200
9230
10100
3080
4100
5130
6150
7180
7980
8720
9430
3080
4100
5120
5870
6590
7280
7960
8610
3080
4060
4800
5500
6180
6830
7460
8070
2980
3870
4580
5250
5890
6520
7120
7700
2960
3940
4930
5910
6900
7880
8870
9840
2960
3940
4930
5910
6900
7750
8460
9160
2960
3940
4930
5700
6400
7070
7730
8360
2960
3940
4660
5340
6000
6630
7240
7840
2860
3760
4450
5100
5720
6330
6910
7480
2690
3580
4480
5370
6270
7160
8060
8950
2690
3580
4480
5370
6270
7160
7880
8520
2690
3580
4480
5300
5960
6580
7190
7780
2690
3580
4340
4970
5580
6170
6740
7290
2600
3470
4140
4740
5330
5890
6430
6960
2490
3330
4160
4990
5820
6650
7480
8310
2490
3330
4160
4990
5820
6650
7450
8060
2490
3330
4160
4990
5630
6230
6800
7360
2490
3330
4100
4700
5280
5830
6370
6900
2410
3220
3910
4490
5040
5570
6080
6580
2270
3020
3780
4530
5290
6040
6800
7550
2270
3020
3780
4530
5290
6040
6800
7500
2270
3020
3780
4530
5240
5790
6330
6850
2270
3020
3780
4380
4910
5430
5930
6420
2190
2920
3640
4180
4690
5180
5660
6130
2100
2800
3510
4210
4910
5610
6310
7010
2100
2800
3510
4210
4910
5610
6310
7010
2100
2800
3510
4210
4910
5480
5980
6480
2100
2800
3510
4140
4640
5130
5610
6070
2040
2710
3390
3950
4430
4900
5350
5790
1980
2640
3300
3960
4620
5280
5940
6600
1980
2640
3300
3960
4620
5280
5940
6600
1980
2640
3300
3960
4620
5230
5720
6190
1980
2640
3300
3950
4440
4910
5360
5800
1920
2550
3190
3770
4240
4680
5110
5540
1880
2510
3130
3760
4390
5010
5640
6270
1880
2510
3130
3760
4390
5010
5640
6270
1880
2510
3130
3760
4390
5010
5500
5950
1880
2510
3130
3760
4270
4720
5160
5580
1790
2430
3030
3630
4080
4510
4920
5330
1800
2400
3000
3600
4200
4800
5400
5990
1800
2400
3000
3600
4200
4800
5400
5990
1800
2400
3000
3600
4200
4800
5320
5760
1800
2400
3000
3600
4130
4560
4990
5400
1660
2280
2880
3480
3940
4360
4760
5150
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
Back to Menu
GL12 (42mm width) Techlam Rafter Span Tables
Beam Size
(mm)
Wind Zone
(NZS3604)
135x42
180x42
225x42
270x42
Low
315x42
360x42
135x42
180x42
225x42
270x42
Medium
315x42
360x42
135x42
180x42
225x42
270x42
High
315x42
360x42
135x42
180x42
225x42
270x42
Very
High
315x42
360x42
135x42
180x42
225x42
270x42
315x42
360x42
Back to Menu
Extra
High
Roof Weight: Heavy
Roof Pitch, α: 0° to 25°
Rafter Spacing (mm)
400
600
800
900
1200
1500
2000
2500
3000
3500
4000
3450
4590
5740
6890
8040
9190
3450
4590
5740
6890
8040
9190
3010
4010
5020
6020
7020
8030
3010
4010
5020
6020
7020
8030
2740
3650
4560
5470
6380
7290
2740
3650
4560
5470
6380
7290
2630
3510
4380
5260
6140
7010
2630
3510
4380
5260
6140
7010
2390
3190
3980
4780
5580
6370
2390
3190
3980
4780
5580
6370
2220
2960
3700
4440
5180
5910
2220
2960
3700
4440
5180
5910
2020
2690
3360
4030
4700
5370
2020
2690
3360
4030
4700
5370
1870
2490
3120
3740
4370
4990
1870
2490
3120
3740
4370
4990
1760
2350
2930
3520
4110
4690
1760
2350
2930
3520
4110
4690
1670
2230
2790
3340
3900
4460
1670
2230
2790
3340
3900
4460
1600
2130
2670
3200
3730
4270
1600
2130
2670
3200
3730
4270
3450
4590
5740
6800
7640
8440
3450
4590
5560
6380
7160
7910
3450
4490
5310
6090
6830
7550
3010
4010
5020
6020
6900
7630
3010
4010
5020
5760
6470
7150
3010
4010
4800
5500
6170
6820
2740
3650
4560
5470
6380
7100
2740
3650
4560
5360
6020
6650
2740
3650
4460
5120
5740
6350
2630
3510
4380
5260
6140
6890
2630
3510
4380
5210
5840
6460
2630
3510
4330
4970
5580
6160
2390
3190
3980
4780
5580
6370
2390
3190
3980
4780
5440
6010
2390
3190
3980
4620
5190
5740
2220
2960
3700
4440
5180
5910
2220
2960
3700
4440
5140
5680
2220
2960
3700
4370
4910
5430
2020
2690
3360
4030
4700
5370
2020
2690
3360
4030
4700
5290
2020
2690
3360
4030
4570
5050
1870
2490
3120
3740
4370
4990
1870
2490
3120
3740
4370
4990
1870
2490
3120
3740
4320
4780
1760
2350
2930
3520
4110
4690
1760
2350
2930
3520
4110
4690
1760
2350
2930
3520
4110
4560
1670
2230
2790
3340
3900
4460
1670
2230
2790
3340
3900
4460
1630
2210
2790
3340
3900
4390
1600
2130
2670
3200
3730
4270
1600
2130
2670
3200
3730
4270
1520
2060
2600
3140
3670
4200
© Copyright
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
51
GL12 (65mm width) Techlam Rafter Span Tables
Beam Size
(mm)
52
135x65
180x65
225x65
270x65
315x65
360x65
405x65
450x65
135x65
180x65
225x65
270x65
315x65
360x65
405x65
450x65
135x65
180x65
225x65
270x65
315x65
360x65
405x65
450x65
135x65
180x65
225x65
270x65
315x65
360x65
405x65
450x65
135x65
180x65
225x65
270x65
315x65
360x65
405x65
450x65
© Copyright
Wind Zone
(NZS3604)
Low
Medium
High
Very
High
Extra
High
Roof Pitch, α: 0° to 25°
Roof Weight: Heavy
Rafter Spacing (mm)
400
600
800
900
1200
1500
2000
2500
3000
3500
4000
3990
5310
6640
7970
9300
10600
12000
13100
3990
5310
6640
7970
9300
10300
11300
12200
3990
5310
6620
7590
8520
9420
10300
11100
3990
5250
6200
7110
7980
8820
9640
10400
3990
5010
5920
6790
7620
8420
9200
9960
3480
4640
5800
6960
8120
9290
10400
11600
3480
4640
5800
6960
8120
9290
10200
11000
3480
4640
5800
6860
7700
8510
9290
10100
3480
4640
5600
6430
7210
7970
8710
9420
3480
4520
5350
6130
6880
7610
8310
9000
3160
4220
5270
6330
7380
8440
9490
10500
3160
4220
5270
6330
7380
8440
9470
10300
3160
4220
5270
6330
7160
7920
8650
9360
3160
4220
5220
5980
6710
7420
8100
8770
3160
4210
4980
5710
6410
7080
7740
8370
3040
4060
5070
6080
7100
8110
9130
10100
3040
4060
5070
6080
7100
8110
9130
9960
3040
4060
5070
6080
6960
7690
8400
9090
3040
4060
5060
5810
6520
7200
7870
8520
3040
4060
4830
5540
6220
6880
7510
8130
2760
3690
4610
5530
6450
7370
8290
9210
2760
3690
4610
5530
6450
7370
8290
9210
2760
3690
4610
5530
6450
7150
7810
8460
2760
3690
4610
5400
6060
6700
7320
7930
2760
3690
4500
5160
5790
6400
6990
7560
2570
3420
4280
5130
5990
6840
7700
8550
2570
3420
4280
5130
5990
6840
7700
8550
2570
3420
4280
5130
5990
6770
7390
8000
2570
3420
4280
5110
5740
6340
6930
7500
2570
3420
4250
4880
5480
6050
6610
7150
2330
3110
3890
4660
5440
6220
6990
7770
2330
3110
3890
4660
5440
6220
6990
7770
2330
3110
3890
4660
5440
6220
6880
7440
2330
3110
3890
4660
5340
5900
6450
6970
2330
3110
3890
4540
5100
5630
6150
6660
2160
2890
3610
4330
5050
5770
6490
7210
2160
2890
3610
4330
5050
5770
6490
7210
2160
2890
3610
4330
5050
5770
6490
7040
2160
2890
3610
4330
5050
5580
6100
6600
2160
2890
3610
4290
4820
5330
5820
6300
2040
2720
3390
4070
4750
5430
6110
6790
2040
2720
3390
4070
4750
5430
6110
6790
2040
2720
3390
4070
4750
5430
6110
6730
2040
2720
3390
4070
4750
5330
5820
6300
2040
2720
3390
4070
4600
5090
5560
6020
1930
2580
3220
3870
4510
5160
5800
6450
1930
2580
3220
3870
4510
5160
5800
6450
1930
2580
3220
3870
4510
5160
5800
6450
1930
2580
3220
3870
4510
5130
5600
6060
1930
2580
3220
3870
4430
4900
5350
5790
1850
2470
3080
3700
4320
4930
5550
6170
1850
2470
3080
3700
4320
4930
5550
6170
1850
2470
3080
3700
4320
4930
5550
6170
1850
2470
3080
3700
4320
4930
5420
5870
1850
2470
3080
3700
4280
4740
5170
5600
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
Back to Menu
GL12 (88mm width) Techlam Rafter Span Tables
Beam Size
(mm)
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
Back to Menu
Wind Zone
(NZS3604)
Low
Medium
High
Very
High
Extra
High
Roof Weight: Heavy
Roof Pitch, α: 0° to 25°
Rafter Spacing (mm)
400
600
800
900
1200
1500
2000
2500
3000
3500
4000
4410
5880
7350
8820
10300
11800
13100
14100
4410
5880
7350
8820
10100
11100
12200
13200
4410
5880
7140
8190
9190
10200
11100
12000
4410
5660
6690
7670
8610
9520
10400
11300
4350
5400
6390
7320
8220
9080
9920
10700
3850
5140
6420
7700
8990
10300
11600
12800
3850
5140
6420
7700
8990
10100
11000
11900
3850
5140
6420
7400
8300
9180
10000
10800
3850
5110
6040
6930
7780
8600
9390
10200
3850
4880
5770
6620
7430
8210
8970
9700
3500
4670
5830
7000
8170
9330
10500
11700
3500
4670
5830
7000
8170
9330
10200
11100
3500
4670
5830
6880
7730
8540
9330
10100
3500
4670
5630
6450
7240
8000
8740
9460
3500
4540
5370
6160
6910
7640
8340
9030
3370
4490
5610
6730
7850
8970
10100
11200
3370
4490
5610
6730
7850
8970
9920
10700
3370
4490
5610
6680
7500
8290
9060
9800
3370
4490
5460
6260
7030
7770
8490
9190
3370
4410
5210
5980
6710
7420
8100
8770
3060
4080
5100
6110
7130
8150
9170
10200
3060
4080
5100
6110
7130
8150
9170
9990
3060
4080
5100
6110
6980
7720
8430
9120
3060
4080
5080
5830
6540
7230
7900
8550
3060
4080
4850
5560
6240
6900
7540
8160
2840
3780
4730
5680
6620
7570
8510
9460
2840
3780
4730
5680
6620
7570
8510
9450
2840
3780
4730
5680
6600
7300
7970
8630
2840
3780
4730
5510
6190
6840
7470
8080
2840
3780
4590
5260
5910
6530
7130
7720
2580
3440
4300
5160
6020
6880
7740
8600
2580
3440
4300
5160
6020
6880
7740
8600
2580
3440
4300
5160
6020
6790
7420
8030
2580
3440
4300
5130
5760
6360
6950
7520
2580
3440
4270
4900
5500
6070
6640
7180
2390
3190
3990
4790
5590
6380
7180
7980
2390
3190
3990
4790
5590
6380
7180
7980
2390
3190
3990
4790
5590
6380
7020
7590
2390
3190
3990
4790
5450
6020
6570
7120
2390
3190
3990
4630
5200
5750
6280
6790
2250
3000
3750
4510
5260
6010
6760
7510
2250
3000
3750
4510
5260
6010
6760
7510
2250
3000
3750
4510
5260
6010
6700
7260
2250
3000
3750
4510
5200
5750
6280
6800
2250
3000
3750
4420
4970
5490
6000
6490
2140
2850
3570
4280
4990
5710
6420
7130
2140
2850
3570
4280
4990
5710
6420
7130
2140
2850
3570
4280
4990
5710
6420
6980
2140
2850
3570
4280
4990
5530
6040
6540
2140
2850
3570
4260
4780
5280
5770
6240
2050
2730
3410
4090
4780
5460
6140
6820
2050
2730
3410
4090
4780
5460
6140
6820
2050
2730
3410
4090
4780
5460
6140
6750
2050
2730
3410
4090
4780
5350
5850
6330
2050
2730
3410
4090
4620
5110
5580
6040
© Copyright
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
53
GL12 (42mm width) Techlam Rafter Span Tables
Beam Size
(mm)
Wind Zone
(NZS3604)
135x42
180x42
225x42
270x42
Low
315x42
360x42
135x42
180x42
225x42
54
270x42
Medium
315x42
360x42
135x42
180x42
225x42
270x42
High
315x42
360x42
135x42
180x42
225x42
270x42
Very
High
315x42
360x42
135x42
180x42
225x42
270x42
315x42
360x42
© Copyright
Extra
High
Roof Weight: Heavy
Roof Pitch, α: 25° to 45°
Rafter Spacing (mm)
400
600
800
900
1200
1500
2000
2500
3000
3500
4000
3170
4230
5290
6340
7400
8460
3170
4230
5290
6340
7390
8170
2770
3700
4620
5540
6470
7390
2770
3700
4620
5540
6470
7380
2520
3360
4200
5040
5880
6710
2520
3360
4200
5040
5880
6710
2420
3230
4040
4840
5650
6460
2420
3230
4040
4840
5650
6460
2200
2930
3670
4400
5130
5870
2200
2930
3670
4400
5130
5870
2040
2720
3400
4080
4760
5450
2040
2720
3400
4080
4760
5450
1860
2470
3090
3710
4330
4950
1860
2470
3090
3710
4330
4950
1720
2300
2870
3440
4020
4590
1720
2300
2870
3440
4020
4590
1620
2160
2700
3240
3780
4320
1620
2160
2700
3240
3780
4320
1540
2050
2570
3080
3590
4110
1540
2050
2570
3080
3590
4110
1470
1960
2450
2950
3440
3930
1470
1960
2450
2950
3440
3930
3170
4230
5240
6010
6750
7460
3170
4150
4910
5630
6320
6990
3070
3970
4690
5370
6030
6670
2770
3700
4620
5430
6100
6740
2770
3700
4440
5090
5710
6310
2680
3570
4240
4860
5450
6030
2520
3360
4200
5040
5670
6270
2520
3360
4130
4740
5320
5880
2440
3250
3940
4520
5070
5610
2420
3230
4040
4840
5510
6090
2420
3230
4010
4600
5160
5700
2340
3120
3830
4390
4930
5450
2200
2930
3670
4400
5130
5670
2200
2930
3670
4280
4800
5310
2130
2840
3550
4080
4580
5070
2040
2720
3400
4080
4760
5360
2040
2720
3400
4050
4540
5020
1980
2630
3290
3860
4340
4790
1860
2470
3090
3710
4330
4950
1860
2470
3090
3710
4230
4670
1740
2380
2990
3590
4030
4460
1720
2300
2870
3440
4020
4590
1670
2270
2860
3440
4000
4420
1530
2110
2680
3240
3800
4220
1620
2160
2700
3240
3780
4320
1510
2060
2600
3140
3680
4210
1370
1910
2430
2950
3460
3970
1540
2050
2570
3080
3590
4110
1390
1900
2400
2900
3400
3900
1250
1750
2240
2720
3190
3660
1450
1950
2450
2940
3430
3920
1280
1770
2240
2710
3180
3640
1150
1620
2080
2530
2980
3420
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
Back to Menu
GL12 (65mm width) Techlam Rafter Span Tables
Beam Size
(mm)
135x65
180x65
225x65
270x65
315x65
360x65
405x65
450x65
135x65
180x65
225x65
270x65
315x65
360x65
405x65
450x65
135x65
180x65
225x65
270x65
315x65
360x65
405x65
450x65
135x65
180x65
225x65
270x65
315x65
360x65
405x65
450x65
135x65
180x65
225x65
270x65
315x65
360x65
405x65
450x65
Back to Menu
Wind Zone
(NZS3604)
Low
Medium
High
Very
High
Extra
High
Roof Weight: Heavy
Roof Pitch, α: 25° to 45°
Rafter Spacing (mm)
400
600
800
900
1200
1500
2000
2500
3000
3500
4000
3670
4890
6120
7340
8560
9780
10700
11600
3670
4890
6120
7340
8240
9110
9950
10800
3670
4890
5850
6700
7520
8320
9080
9830
3670
4630
5480
6280
7050
7790
8510
9210
3550
4420
5230
5990
6730
7440
8130
8790
3210
4270
5340
6410
7480
8550
9620
10500
3210
4270
5340
6410
7450
8230
8990
9730
3210
4270
5280
6060
6800
7510
8210
8880
3210
4190
4950
5680
6370
7040
7690
8320
3100
4000
4720
5420
6080
6720
7340
7950
2910
3880
4850
5830
6800
7770
8740
9710
2910
3880
4850
5830
6800
7660
8370
9060
2910
3880
4850
5640
6330
6990
7640
8270
2910
3880
4610
5280
5930
6550
7160
7750
2820
3720
4400
5040
5660
6260
6830
7390
2800
3730
4670
5600
6530
7470
8400
9330
2800
3730
4670
5600
6530
7440
8130
8790
2800
3730
4670
5470
6140
6790
7420
8030
2800
3730
4470
5130
5760
6360
6950
7520
2710
3610
4270
4890
5490
6070
6630
7180
2540
3390
4240
5090
5940
6780
7630
8480
2540
3390
4240
5090
5940
6780
7560
8180
2540
3390
4240
5090
5720
6320
6900
7470
2540
3390
4160
4770
5360
5920
6470
7000
2460
3280
3970
4560
5110
5650
6170
6680
2360
3150
3940
4720
5510
6300
7090
7870
2360
3150
3940
4720
5510
6300
7090
7740
2360
3150
3940
4720
5410
5980
6530
7070
2360
3150
3940
4510
5070
5600
6120
6620
2290
3050
3760
4310
4840
5350
5840
6320
2150
2860
3580
4290
5010
5720
6440
7150
2150
2860
3580
4290
5010
5720
6440
7150
2150
2860
3580
4290
5010
5560
6080
6570
2150
2860
3580
4200
4710
5210
5690
6160
2080
2770
3460
4010
4500
4970
5430
5880
1990
2660
3320
3980
4650
5310
5980
6640
1990
2660
3320
3980
4650
5310
5980
6640
1990
2660
3320
3980
4650
5260
5750
6220
1990
2660
3320
3970
4460
4930
5380
5830
1930
2570
3210
3790
4260
4700
5140
5560
1870
2500
3120
3750
4370
5000
5620
6250
1870
2500
3120
3750
4370
5000
5620
6250
1870
2500
3120
3750
4370
5000
5490
5940
1870
2500
3120
3750
4260
4710
5140
5570
1770
2420
3020
3620
4070
4490
4910
5310
1780
2370
2970
3560
4160
4750
5340
5940
1780
2370
2970
3560
4160
4750
5340
5940
1780
2370
2970
3560
4160
4750
5280
5720
1760
2370
2970
3560
4100
4530
4950
5360
1620
2230
2820
3410
3910
4330
4720
5110
1700
2270
2840
3410
3970
4540
5110
5680
1700
2270
2840
3410
3970
4540
5110
5680
1700
2270
2840
3410
3970
4540
5110
5530
1640
2230
2810
3390
3960
4380
4790
5180
1500
2070
2630
3180
3730
4180
4570
4950
© Copyright
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
55
GL12 (88mm width) Techlam Rafter Span Tables
Beam Size
(mm)
56
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
© Copyright
Wind Zone
(NZS3604)
Low
Medium
High
Very
High
Extra
High
Roof Weight: Heavy
Roof Pitch, α: 25° to 45°
Rafter Spacing (mm)
400
600
800
900
1200
1500
2000
2500
3000
3500
4000
4060
5410
6770
8120
9470
10600
11500
12500
4060
5410
6770
7920
8890
9830
10700
11600
4060
5330
6310
7230
8120
8970
9800
10600
4030
5000
5910
6770
7610
8410
9180
9940
3850
4770
5640
6470
7260
8020
8760
9490
3550
4730
5910
7090
8270
9460
10400
11300
3550
4730
5910
7090
8030
8880
9700
10500
3550
4730
5700
6530
7330
8110
8850
9580
3550
4520
5340
6120
6870
7600
8300
8980
3430
4310
5100
5840
6560
7250
7920
8570
3220
4300
5370
6440
7520
8590
9670
10500
3220
4300
5370
6440
7480
8260
9030
9770
3220
4300
5300
6080
6820
7540
8240
8920
3220
4200
4970
5700
6400
7070
7720
8360
3120
4010
4740
5440
6100
6750
7370
7980
3100
4130
5160
6200
7230
8260
9290
10200
3100
4130
5160
6200
7230
8020
8760
9490
3100
4130
5150
5900
6630
7320
8000
8660
3100
4080
4820
5530
6210
6860
7500
8110
3000
3900
4610
5280
5930
6550
7160
7750
2810
3750
4690
5630
6570
7510
8440
9380
2810
3750
4690
5630
6570
7470
8160
8830
2810
3750
4690
5490
6170
6820
7450
8060
2810
3750
4490
5150
5780
6390
6980
7550
2720
3630
4290
4910
5520
6100
6660
7210
2610
3480
4350
5230
6100
6970
7840
8710
2610
3480
4350
5230
6100
6970
7710
8350
2610
3480
4350
5200
5830
6450
7040
7620
2610
3480
4250
4870
5470
6040
6600
7140
2530
3370
4050
4650
5220
5770
6300
6820
2370
3170
3960
4750
5540
6330
7120
7910
2370
3170
3960
4750
5540
6330
7120
7770
2370
3170
3960
4750
5430
6000
6550
7090
2370
3170
3950
4530
5090
5620
6140
6650
2300
3060
3770
4320
4850
5370
5860
6340
2200
2940
3670
4410
5140
5880
6610
7350
2200
2940
3670
4410
5140
5880
6610
7350
2200
2940
3670
4410
5130
5670
6200
6710
2200
2940
3670
4280
4810
5320
5810
6290
2130
2840
3550
4090
4590
5070
5540
6000
2070
2770
3460
4150
4840
5530
6220
6910
2070
2770
3460
4150
4840
5530
6220
6910
2070
2770
3460
4150
4840
5420
5920
6410
2070
2770
3460
4090
4600
5080
5550
6010
2010
2680
3340
3910
4390
4850
5300
5730
1970
2630
3280
3940
4600
5250
5910
6570
1970
2630
3280
3940
4600
5250
5910
6570
1970
2630
3280
3940
4600
5220
5700
6170
1970
2630
3280
3940
4420
4890
5340
5780
1910
2540
3180
3760
4220
4670
5100
5520
1880
2510
3140
3770
4400
5020
5650
6280
1880
2510
3140
3770
4400
5020
5650
6280
1880
2510
3140
3770
4400
5020
5510
5960
1880
2510
3140
3770
4280
4730
5160
5590
1780
2430
3040
3640
4080
4510
4930
5330
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
Back to Menu
Rafter beams are an ideal application for glulaminated
timber. Lightweight, strong and aesthetically pleasing,
laminated timber is far superior to solid timber.
57
Back to Menu
© Copyright
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
B Te Ap
ea c
m hla p e
Sp m n d
an R i x
i
Ta dg C
bl e
es
58
Figure C. Ridge Beam Loading
© Copyright
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
Back to Menu
Roof Weight: Light
Roof Pitch, α: 0° to 25°
GL8 (88mm width) Techlam Ridge Beam Span Tables
Beam Size
(mm)
270x88
315x88
360x88
405x88
450x88
495x88
540x88
585x88
270x88
315x88
360x88
405x88
450x88
495x88
540x88
585x88
270x88
315x88
360x88
405x88
450x88
495x88
540x88
585x88
270x88
315x88
360x88
405x88
450x88
495x88
540x88
585x88
270x88
315x88
360x88
405x88
450x88
495x88
540x88
585x88
Back to Menu
Wind Zone
(NZS3604)
Low
Medium
High
Very
High
Extra
High
Loaded Width (mm)
1000
1500
2000
2500
3000
3500
4000
4500
5000
5500
6000
7350
8250
9120
9960
10800
11600
12400
13100
6840
7680
8490
9270
10000
10800
11500
12200
6240
7010
7750
8460
9160
9840
10500
11200
5850
6570
7260
7930
8580
9220
9840
10400
5590
6270
6930
7570
8190
8800
9390
9970
6620
7450
8240
9000
9740
10500
11200
11900
6180
6940
7670
8380
9070
9740
10400
11000
5640
6330
7000
7650
8280
8890
9490
10100
5290
5940
6560
7170
7760
8330
8890
9440
5050
5670
6260
6840
7400
7950
8490
9010
6010
6940
7670
8370
9060
9740
10400
11000
5750
6460
7140
7800
8440
9060
9670
10300
5250
5890
6520
7120
7700
8270
8830
9380
4920
5520
6110
6670
7220
7750
8280
8790
4700
5270
5830
6370
6890
7400
7900
8390
5580
6510
7250
7920
8570
9210
9830
10400
5440
6110
6750
7370
7980
8570
9150
9720
4970
5570
6160
6730
7280
7820
8350
8870
4650
5220
5770
6310
6830
7330
7830
8310
4440
4990
5510
6020
6520
7000
7470
7930
5250
6130
6930
7570
8190
8800
9390
9970
5200
5830
6450
7050
7620
8190
8740
9280
4740
5330
5890
6430
6960
7480
7980
8470
4450
4990
5520
6030
6520
7010
7480
7940
4240
4760
5270
5750
6230
6690
7140
7580
4990
5820
6650
7280
7880
8460
9030
9590
4990
5610
6210
6780
7340
7880
8410
8930
4570
5130
5660
6190
6700
7190
7680
8150
4280
4800
5310
5800
6280
6740
7190
7640
4080
4580
5070
5530
5990
6430
6870
7290
4770
5570
6360
7040
7620
8190
8740
9280
4770
5430
6000
6560
7100
7620
8130
8640
4420
4960
5480
5980
6480
6960
7430
7890
4140
4640
5130
5610
6070
6520
6960
7390
3950
4430
4900
5350
5790
6220
6640
7050
4590
5350
6120
6840
7400
7950
8480
9010
4590
5270
5830
6370
6890
7400
7900
8390
4290
4810
5320
5810
6290
6760
7210
7660
4020
4510
4990
5450
5890
6330
6760
7170
3830
4300
4760
5200
5630
6040
6450
6850
4430
5170
5910
6650
7210
7740
8260
8780
4430
5140
5680
6200
6710
7210
7690
8170
4180
4690
5180
5660
6130
6580
7020
7460
3910
4390
4860
5300
5740
6170
6580
6990
3740
4190
4630
5060
5480
5880
6280
6670
4290
5010
5720
6440
7040
7560
8070
8570
4290
5010
5540
6050
6550
7040
7510
7980
4080
4580
5060
5530
5980
6420
6860
7280
3820
4290
4740
5180
5600
6020
6430
6820
3630
4090
4530
4940
5350
5750
6130
6510
4170
4870
5560
6250
6890
7400
7900
8380
4170
4870
5420
5920
6410
6890
7350
7810
3990
4480
4950
5410
5850
6290
6710
7130
3740
4200
4640
5070
5480
5890
6290
6680
3530
4010
4430
4840
5230
5620
6000
6370
© Copyright
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
59
Roof Weight: Light
Roof Pitch, α: 25° to 45°
GL8 (88mm width) Techlam Ridge Beam Span Tables
Beam Size
(mm)
60
270x88
315x88
360x88
405x88
450x88
495x88
540x88
585x88
270x88
315x88
360x88
405x88
450x88
495x88
540x88
585x88
270x88
315x88
360x88
405x88
450x88
495x88
540x88
585x88
270x88
315x88
360x88
405x88
450x88
495x88
540x88
585x88
270x88
315x88
360x88
405x88
450x88
495x88
540x88
585x88
© Copyright
Wind Zone
(NZS3604)
Low
Medium
High
Very
High
Extra
High
Loaded Width (mm)
1000
1500
2000
2500
3000
3500
4000
4500
5000
5500
6000
6970
8140
9120
9960
10800
11600
12400
13100
6840
7680
8490
9270
10000
10800
11500
12200
6240
7010
7750
8460
9160
9840
10500
11200
5850
6570
7260
7930
8580
9220
9840
10400
5590
6270
6930
7570
8190
8800
9390
9970
6090
7110
8120
9000
9740
10500
11200
11900
6090
6940
7670
8380
9070
9740
10400
11000
5640
6330
7000
7650
8280
8890
9490
10100
5290
5940
6560
7170
7760
8330
8890
9440
5050
5670
6260
6840
7400
7950
8490
9010
5540
6460
7380
8300
9060
9740
10400
11000
5540
6460
7140
7800
8440
9060
9670
10300
5250
5890
6520
7120
7700
8270
8830
9380
4920
5520
6110
6670
7220
7750
8280
8790
4700
5270
5830
6370
6890
7400
7900
8390
5140
6000
6850
7710
8560
9210
9830
10400
5140
6000
6750
7370
7980
8570
9150
9720
4970
5570
6160
6730
7280
7820
8350
8870
4650
5220
5770
6310
6830
7330
7830
8310
4440
4990
5510
6020
6520
7000
7470
7930
4840
5640
6450
7250
8060
8800
9390
9970
4840
5640
6450
7050
7620
8190
8740
9280
4740
5330
5890
6430
6960
7480
7980
8470
4450
4990
5520
6030
6520
7010
7480
7940
4240
4760
5270
5750
6230
6690
7140
7580
4600
5360
6130
6890
7660
8420
9030
9590
4600
5360
6130
6780
7340
7880
8410
8930
4570
5130
5660
6190
6700
7190
7680
8150
4280
4800
5310
5800
6280
6740
7190
7640
4080
4580
5070
5530
5990
6430
6870
7290
4400
5130
5860
6590
7320
8050
8740
9280
4400
5130
5860
6560
7100
7620
8130
8640
4400
4960
5480
5980
6480
6960
7430
7890
4140
4640
5130
5610
6070
6520
6960
7390
3950
4430
4900
5350
5790
6220
6640
7050
4230
4930
5630
6340
7040
7740
8450
9010
4230
4930
5630
6340
6890
7400
7900
8390
4230
4810
5320
5810
6290
6760
7210
7660
4020
4510
4990
5450
5890
6330
6760
7170
3830
4300
4760
5200
5630
6040
6450
6850
4080
4760
5440
6120
6800
7480
8160
8780
4080
4760
5440
6120
6710
7210
7690
8170
4080
4690
5180
5660
6130
6580
7020
7460
3910
4390
4860
5300
5740
6170
6580
6990
3740
4190
4630
5060
5480
5880
6280
6670
3950
4610
5270
5930
6590
7240
7900
8560
3950
4610
5270
5930
6550
7040
7510
7980
3950
4580
5060
5530
5980
6420
6860
7280
3820
4290
4740
5180
5600
6020
6430
6820
3630
4090
4530
4940
5350
5750
6130
6510
3840
4480
5120
5760
6400
7040
7680
8310
3840
4480
5120
5760
6400
6890
7350
7810
3840
4480
4950
5410
5850
6290
6710
7130
3740
4200
4640
5070
5480
5890
6290
6680
3530
4010
4430
4840
5230
5620
6000
6370
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
Back to Menu
Roof Weight: Light
Roof Pitch, α: 0° to 25°
GL10 (88mm width) Techlam Ridge Beam Span Tables
Beam Size
(mm)
270x88
315x88
360x88
405x88
450x88
495x88
540x88
585x88
270x88
315x88
360x88
405x88
450x88
495x88
540x88
585x88
270x88
315x88
360x88
405x88
450x88
495x88
540x88
585x88
270x88
315x88
360x88
405x88
450x88
495x88
540x88
585x88
270x88
315x88
360x88
405x88
450x88
495x88
540x88
585x88
Back to Menu
Wind Zone
(NZS3604)
Low
Medium
High
Very
High
Extra
High
Loaded Width (mm)
1000
1500
2000
2500
3000
3500
4000
4500
5000
5500
6000
7770
8720
9640
10500
11400
12200
13100
13900
7230
8120
8970
9800
10600
11400
12200
12900
6600
7410
8190
8950
9690
10400
11100
11800
6190
6950
7680
8390
9080
9750
10400
11000
5910
6630
7330
8000
8660
9300
9930
10500
7020
7880
8710
9520
10300
11100
11800
12500
6540
7340
8110
8860
9590
10300
11000
11700
5970
6700
7400
8090
8750
9400
10000
10700
5590
6280
6940
7580
8200
8810
9400
9980
5340
5990
6620
7230
7830
8410
8970
9530
6480
7330
8110
8860
9580
10300
11000
11700
6080
6830
7550
8240
8920
9580
10200
10900
5550
6230
6890
7530
8140
8750
9340
9920
5200
5840
6460
7050
7630
8200
8750
9290
4970
5570
6160
6730
7280
7820
8350
8870
6010
6940
7670
8370
9060
9740
10400
11000
5750
6460
7140
7800
8440
9060
9670
10300
5250
5890
6520
7120
7700
8270
8830
9380
4920
5520
6110
6670
7220
7750
8280
8790
4700
5270
5830
6370
6890
7400
7900
8390
5660
6600
7330
8000
8660
9300
9930
10500
5500
6170
6820
7450
8060
8660
9240
9810
5020
5630
6230
6800
7360
7900
8440
8960
4700
5280
5830
6370
6900
7410
7910
8400
4490
5040
5570
6080
6580
7070
7550
8010
5380
6270
7050
7700
8330
8950
9550
10100
5290
5940
6560
7170
7760
8330
8890
9440
4830
5420
5990
6540
7080
7610
8120
8620
4520
5080
5610
6130
6640
7130
7610
8080
4320
4850
5360
5850
6330
6800
7260
7710
5140
6000
6820
7450
8060
8660
9240
9810
5110
5740
6350
6930
7500
8060
8600
9130
4670
5240
5790
6330
6850
7360
7850
8340
4380
4910
5430
5930
6420
6890
7360
7810
4180
4690
5180
5660
6130
6580
7020
7460
4940
5770
6590
7230
7820
8400
8970
9530
4940
5570
6160
6730
7280
7820
8350
8870
4530
5090
5630
6140
6650
7140
7620
8100
4250
4770
5270
5760
6230
6690
7140
7590
4050
4550
5030
5500
5950
6390
6820
7240
4770
5570
6360
7040
7620
8190
8740
9280
4770
5430
6000
6560
7100
7620
8130
8640
4420
4960
5480
5980
6480
6960
7430
7890
4140
4640
5130
5610
6070
6520
6960
7390
3950
4430
4900
5350
5790
6220
6640
7050
4630
5400
6170
6880
7440
7990
8530
9060
4630
5300
5860
6400
6930
7440
7940
8430
4310
4840
5350
5840
6320
6790
7250
7700
4040
4540
5010
5480
5930
6370
6790
7220
3860
4330
4790
5230
5660
6080
6490
6890
4490
5240
5990
6730
7280
7820
8350
8870
4490
5190
5730
6260
6780
7280
7770
8250
4220
4740
5230
5720
6190
6650
7100
7530
3950
4440
4910
5360
5800
6230
6650
7060
3770
4240
4680
5110
5540
5950
6350
6740
© Copyright
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
61
Roof Weight: Light
Roof Pitch, α: 25° to 45°
GL10 (88mm width) Techlam Ridge Beam Span Tables
Beam Size
(mm)
62
270x88
315x88
360x88
405x88
450x88
495x88
540x88
585x88
270x88
315x88
360x88
405x88
450x88
495x88
540x88
585x88
270x88
315x88
360x88
405x88
450x88
495x88
540x88
585x88
270x88
315x88
360x88
405x88
450x88
495x88
540x88
585x88
270x88
315x88
360x88
405x88
450x88
495x88
540x88
585x88
© Copyright
Wind Zone
(NZS3604)
Low
Medium
High
Very
High
Extra
High
Loaded Width (mm)
1000
1500
2000
2500
3000
3500
4000
4500
5000
5500
6000
7510
8720
9640
10500
11400
12200
13100
13900
7230
8120
8970
9800
10600
11400
12200
12900
6600
7410
8190
8950
9690
10400
11100
11800
6190
6950
7680
8390
9080
9750
10400
11000
5910
6630
7330
8000
8660
9300
9930
10500
6560
7660
8710
9520
10300
11100
11800
12500
6540
7340
8110
8860
9590
10300
11000
11700
5970
6700
7400
8090
8750
9400
10000
10700
5590
6280
6940
7580
8200
8810
9400
9980
5340
5990
6620
7230
7830
8410
8970
9530
5960
6960
7950
8860
9580
10300
11000
11700
5960
6830
7550
8240
8920
9580
10200
10900
5550
6230
6890
7530
8140
8750
9340
9920
5200
5840
6460
7050
7630
8200
8750
9290
4970
5570
6160
6730
7280
7820
8350
8870
5540
6460
7380
8300
9060
9740
10400
11000
5540
6460
7140
7800
8440
9060
9670
10300
5250
5890
6520
7120
7700
8270
8830
9380
4920
5520
6110
6670
7220
7750
8280
8790
4700
5270
5830
6370
6890
7400
7900
8390
5210
6080
6950
7810
8660
9300
9930
10500
5210
6080
6820
7450
8060
8660
9240
9810
5020
5630
6230
6800
7360
7900
8440
8960
4700
5280
5830
6370
6900
7410
7910
8400
4490
5040
5570
6080
6580
7070
7550
8010
4950
5770
6600
7420
8250
8950
9550
10100
4950
5770
6560
7170
7760
8330
8890
9440
4830
5420
5990
6540
7080
7610
8120
8620
4520
5080
5610
6130
6640
7130
7610
8080
4320
4850
5360
5850
6330
6800
7260
7710
4730
5520
6310
7100
7890
8660
9240
9810
4730
5520
6310
6930
7500
8060
8600
9130
4670
5240
5790
6330
6850
7360
7850
8340
4380
4910
5430
5930
6420
6890
7360
7810
4180
4690
5180
5660
6130
6580
7020
7460
4550
5310
6070
6830
7580
8340
8970
9530
4550
5310
6070
6730
7280
7820
8350
8870
4530
5090
5630
6140
6650
7140
7620
8100
4250
4770
5270
5760
6230
6690
7140
7590
4050
4550
5030
5500
5950
6390
6820
7240
4400
5130
5860
6590
7320
8050
8740
9280
4400
5130
5860
6560
7100
7620
8130
8640
4400
4960
5480
5980
6480
6960
7430
7890
4140
4640
5130
5610
6070
6520
6960
7390
3950
4430
4900
5350
5790
6220
6640
7050
4260
4970
5680
6380
7090
7800
8510
9060
4260
4970
5680
6380
6930
7440
7940
8430
4260
4840
5350
5840
6320
6790
7250
7700
4040
4540
5010
5480
5930
6370
6790
7220
3860
4330
4790
5230
5660
6080
6490
6890
4140
4830
5510
6200
6890
7580
8270
8870
4140
4830
5510
6200
6780
7280
7770
8250
4140
4740
5230
5720
6190
6650
7100
7530
3950
4440
4910
5360
5800
6230
6650
7060
3770
4240
4680
5110
5540
5950
6350
6740
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
Back to Menu
Roof Weight: Light
Roof Pitch, α: 0° to 25°
GL12 (88mm width) Techlam Ridge Beam Span Tables
Beam Size
(mm)
270x88
315x88
360x88
405x88
450x88
495x88
540x88
585x88
270x88
315x88
360x88
405x88
450x88
495x88
540x88
585x88
270x88
315x88
360x88
405x88
450x88
495x88
540x88
585x88
270x88
315x88
360x88
405x88
450x88
495x88
540x88
585x88
270x88
315x88
360x88
405x88
450x88
495x88
540x88
585x88
Back to Menu
Wind Zone
(NZS3604)
Low
Medium
High
Very
High
Extra
High
Loaded Width (mm)
1000
1500
2000
2500
3000
3500
4000
4500
5000
5500
6000
8050
9030
9980
10900
11800
12700
13500
14400
7490
8410
9290
10200
11000
11800
12600
13400
6840
7680
8480
9270
10000
10800
11500
12200
6410
7190
7950
8680
9400
10100
10800
11400
6120
6870
7590
8290
8970
9640
10300
10900
7270
8160
9020
9850
10700
11500
12200
13000
6770
7600
8400
9170
9930
10700
11400
12100
6180
6940
7670
8370
9060
9730
10400
11000
5790
6500
7180
7850
8490
9120
9740
10300
5530
6200
6860
7490
8110
8710
9290
9870
6770
7590
8390
9170
9920
10700
11400
12100
6300
7070
7820
8540
9240
9920
10600
11200
5750
6450
7130
7790
8430
9060
9670
10300
5390
6050
6690
7300
7900
8490
9060
9620
5140
5770
6380
6970
7540
8100
8650
9180
6300
7180
7940
8670
9390
10100
10800
11400
5960
6690
7390
8070
8740
9390
10000
10600
5440
6100
6750
7370
7980
8570
9150
9710
5100
5720
6320
6910
7470
8030
8570
9100
4860
5460
6030
6590
7130
7660
8180
8690
5930
6860
7590
8290
8970
9630
10300
10900
5690
6390
7060
7710
8350
8970
9570
10200
5200
5830
6450
7040
7620
8190
8740
9280
4870
5470
6040
6600
7140
7670
8190
8690
4650
5220
5770
6300
6820
7320
7820
8300
5630
6570
7300
7970
8630
9270
9890
10500
5480
6150
6790
7420
8030
8630
9210
9780
5000
5610
6200
6780
7330
7880
8410
8930
4680
5260
5810
6350
6870
7380
7880
8370
4470
5020
5550
6060
6560
7040
7520
7990
5390
6280
7060
7710
8350
8960
9570
10200
5300
5950
6570
7180
7770
8340
8910
9460
4830
5430
6000
6550
7090
7620
8130
8630
4530
5090
5620
6140
6650
7140
7620
8090
4320
4850
5370
5860
6340
6810
7270
7720
5180
6040
6850
7490
8100
8700
9290
9870
5140
5770
6380
6970
7540
8100
8650
9180
4690
5270
5830
6360
6890
7400
7900
8380
4400
4940
5460
5960
6450
6930
7400
7860
4200
4710
5210
5690
6160
6620
7060
7500
5000
5830
6670
7290
7890
8480
9050
9610
5000
5620
6220
6790
7350
7890
8420
8950
4570
5130
5670
6200
6710
7200
7690
8170
4280
4810
5320
5810
6290
6750
7210
7650
4090
4590
5070
5540
6000
6440
6880
7300
4850
5650
6460
7120
7710
8280
8840
9380
4850
5490
6070
6630
7170
7710
8230
8730
4460
5010
5540
6050
6550
7030
7510
7970
4180
4700
5190
5670
6140
6590
7040
7470
3990
4480
4960
5410
5860
6290
6720
7130
4710
5490
6270
6970
7540
8100
8650
9180
4710
5370
5940
6490
7020
7540
8050
8550
4370
4900
5420
5920
6410
6880
7350
7800
4090
4600
5080
5550
6010
6450
6880
7310
3910
4390
4850
5300
5730
6160
6570
6980
© Copyright
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
63
Roof Weight: Light
Roof Pitch, α: 25° to 45°
GL12 (88mm width) Techlam Ridge Beam Span Tables
Beam Size
(mm)
64
270x88
315x88
360x88
405x88
450x88
495x88
540x88
585x88
270x88
315x88
360x88
405x88
450x88
495x88
540x88
585x88
270x88
315x88
360x88
405x88
450x88
495x88
540x88
585x88
270x88
315x88
360x88
405x88
450x88
495x88
540x88
585x88
270x88
315x88
360x88
405x88
450x88
495x88
540x88
585x88
© Copyright
Wind Zone
(NZS3604)
Low
Medium
High
Very
High
Extra
High
Loaded Width (mm)
1000
1500
2000
2500
3000
3500
4000
4500
5000
5500
6000
7870
9030
9980
10900
11800
12700
13500
14400
6770
8410
9290
10200
11000
11800
12600
13400
6840
7680
8480
9270
10000
10800
11500
12200
5790
7190
7950
8680
9400
10100
10800
11400
6120
6870
7590
8290
8970
9640
10300
10900
6880
8020
9020
9850
10700
11500
12200
13000
6250
7600
8400
9170
9930
10700
11400
12100
6180
6940
7670
8370
9060
9730
10400
11000
5390
6500
7180
7850
8490
9120
9740
10300
5530
6200
6860
7490
8110
8710
9290
9870
6250
7290
8330
9170
9920
10700
11400
12100
5800
7070
7820
8540
9240
9920
10600
11200
5750
6450
7130
7790
8430
9060
9670
10300
5100
6050
6690
7300
7900
8490
9060
9620
5140
5770
6380
6970
7540
8100
8650
9180
5800
6770
7730
8670
9390
10100
10800
11400
5460
6690
7390
8070
8740
9390
10000
10600
5440
6100
6750
7370
7980
8570
9150
9710
4870
5720
6320
6910
7470
8030
8570
9100
4860
5460
6030
6590
7130
7660
8180
8690
5460
6370
7280
8190
8970
9630
10300
10900
5190
6370
7060
7710
8350
8970
9570
10200
5200
5830
6450
7040
7620
8190
8740
9280
4680
5470
6040
6600
7140
7670
8190
8690
4650
5220
5770
6300
6820
7320
7820
8300
5190
6050
6910
7780
8630
9270
9890
10500
4960
6050
6790
7420
8030
8630
9210
9780
5000
5610
6200
6780
7330
7880
8410
8930
4530
5260
5810
6350
6870
7380
7880
8370
4470
5020
5550
6060
6560
7040
7520
7990
4960
5790
6610
7440
8260
8960
9570
10200
4770
5790
6570
7180
7770
8340
8910
9460
4830
5430
6000
6550
7090
7620
8130
8630
4400
5090
5620
6140
6650
7140
7620
8090
4320
4850
5370
5860
6340
6810
7270
7720
4770
5560
6360
7150
7950
8700
9290
9870
4610
5560
6360
6970
7540
8100
8650
9180
4690
5270
5830
6360
6890
7400
7900
8380
4280
4940
5460
5960
6450
6930
7400
7860
4200
4710
5210
5690
6160
6620
7060
7500
4610
5370
6140
6900
7670
8440
9050
9610
4460
5370
6140
6790
7350
7890
8420
8950
4570
5130
5670
6200
6710
7200
7690
8170
4180
4810
5320
5810
6290
6750
7210
7650
4090
4590
5070
5540
6000
6440
6880
7300
4460
5200
5950
6690
7430
8170
8840
9380
4330
5200
5950
6630
7170
7710
8230
8730
4460
5010
5540
6050
6550
7030
7510
7970
4090
4700
5190
5670
6140
6590
7040
7470
3990
4480
4960
5410
5860
6290
6720
7130
4330
5060
5780
6500
7220
7940
8650
9180
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
5060
5780
6490
7020
7540
8050
8550
4330
4900
5420
5920
6410
6880
7350
7800
4600
5080
5550
6010
6450
6880
7310
3910
4390
4850
5300
5730
6160
6570
6980
Back to Menu
Roof Weight: Heavy
Roof Pitch, α: 0° to 25°
GL8 (88mm width) Techlam Ridge Beam Span Tables
Beam Size
(mm)
270x88
315x88
360x88
405x88
450x88
495x88
540x88
585x88
270x88
315x88
360x88
405x88
450x88
495x88
540x88
585x88
270x88
315x88
360x88
405x88
450x88
495x88
540x88
585x88
270x88
315x88
360x88
405x88
450x88
495x88
540x88
585x88
270x88
315x88
360x88
405x88
450x88
495x88
540x88
585x88
Back to Menu
Wind Zone
(NZS3604)
Low
Medium
High
Very
High
Extra
High
Loaded Width (mm)
1000
1500
2000
2500
3000
3500
4000
4500
5000
5500
6000
5710
6660
7620
8570
9520
10500
11400
12400
5710
6660
7620
8570
9520
10500
11400
12200
5710
6660
7620
8460
9160
9840
10500
11200
5710
6570
7260
7930
8580
9220
9840
10400
5590
6270
6930
7570
8190
8800
9390
9970
4990
5820
6650
7480
8310
9150
9980
10800
4990
5820
6650
7480
8310
9150
9980
10800
4990
5820
6650
7480
8280
8890
9490
10100
4990
5820
6560
7170
7760
8330
8890
9440
4990
5670
6260
6840
7400
7950
8490
9010
4540
5290
6050
6800
7560
8310
9060
9820
4540
5290
6050
6800
7560
8310
9060
9820
4540
5290
6050
6800
7560
8270
8830
9380
4540
5290
6050
6670
7220
7750
8280
8790
4540
5270
5830
6370
6890
7400
7900
8390
4210
4910
5610
6310
7010
7710
8420
9120
4210
4910
5610
6310
7010
7710
8420
9120
4210
4910
5610
6310
7010
7710
8350
8870
4210
4910
5610
6310
6830
7330
7830
8310
4210
4910
5510
6020
6520
7000
7470
7930
3960
4620
5280
5940
6600
7260
7920
8580
3960
4620
5280
5940
6600
7260
7920
8580
3960
4620
5280
5940
6600
7260
7920
8470
3960
4620
5280
5940
6520
7010
7480
7940
3960
4620
5270
5750
6230
6690
7140
7580
3760
4390
5020
5640
6270
6900
7520
8150
3760
4390
5020
5640
6270
6900
7520
8150
3760
4390
5020
5640
6270
6900
7520
8150
3760
4390
5020
5640
6270
6740
7190
7640
3760
4390
5020
5530
5990
6430
6870
7290
3600
4200
4800
5400
6000
6600
7200
7800
3600
4200
4800
5400
6000
6600
7200
7800
3600
4200
4800
5400
6000
6600
7200
7800
3600
4200
4800
5400
6000
6520
6960
7390
3600
4200
4800
5350
5790
6220
6640
7050
3460
4040
4610
5190
5770
6340
6920
7500
3460
4040
4610
5190
5770
6340
6920
7500
3460
4040
4610
5190
5770
6340
6920
7500
3460
4040
4610
5190
5770
6330
6760
7170
3460
4040
4610
5190
5630
6040
6450
6850
3340
3900
4460
5010
5570
6120
6680
7240
3340
3900
4460
5010
5570
6120
6680
7240
3340
3900
4460
5010
5570
6120
6680
7240
3340
3900
4460
5010
5570
6120
6580
6990
3340
3900
4460
5010
5480
5880
6280
6670
3240
3780
4320
4860
5390
5930
6470
7010
3240
3780
4320
4860
5390
5930
6470
7010
3240
3780
4320
4860
5390
5930
6470
7010
3240
3780
4320
4860
5390
5930
6430
6820
3240
3780
4320
4860
5350
5750
6130
6510
3150
3670
4190
4720
5240
5760
6290
6810
3150
3670
4190
4720
5240
5760
6290
6810
3150
3670
4190
4720
5240
5760
6290
6810
3150
3670
4190
4720
5240
5760
6290
6680
3150
3670
4190
4720
5230
5620
6000
6370
© Copyright
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
65
Roof Weight: Heavy
Roof Pitch, α: 25° to 45°
GL8 (88mm width) Techlam Ridge Beam Span Tables
Beam Size
(mm)
66
270x88
315x88
360x88
405x88
450x88
495x88
540x88
585x88
270x88
315x88
360x88
405x88
450x88
495x88
540x88
585x88
270x88
315x88
360x88
405x88
450x88
495x88
540x88
585x88
270x88
315x88
360x88
405x88
450x88
495x88
540x88
585x88
270x88
315x88
360x88
405x88
450x88
495x88
540x88
585x88
© Copyright
Wind Zone
(NZS3604)
Low
Medium
High
Very
High
Extra
High
Loaded Width (mm)
1000
1500
2000
2500
3000
3500
4000
4500
5000
5500
6000
5260
6140
7010
7890
8760
9640
10500
11400
5260
6140
7010
7890
8760
9640
10500
11400
5260
6140
7010
7890
8760
9640
10500
11200
5260
6140
7010
7890
8580
9220
9840
10400
5260
6140
6930
7570
8190
8800
9390
9970
4600
5360
6130
6890
7660
8420
9180
9950
4600
5360
6130
6890
7660
8420
9180
9950
4600
5360
6130
6890
7660
8420
9180
9950
4600
5360
6130
6890
7660
8330
8890
9440
4600
5360
6130
6840
7400
7950
8490
9010
4180
4870
5570
6260
6960
7650
8350
9040
4180
4870
5570
6260
6960
7650
8350
9040
4180
4870
5570
6260
6960
7650
8350
9040
4180
4870
5570
6260
6960
7650
8280
8790
4180
4870
5570
6260
6890
7400
7900
8390
3880
4520
5170
5810
6460
7100
7750
8390
3880
4520
5170
5810
6460
7100
7750
8390
3880
4520
5170
5810
6460
7100
7750
8390
3880
4520
5170
5810
6460
7100
7750
8310
3880
4520
5170
5810
6460
7000
7470
7930
3650
4260
4860
5470
6080
6680
7290
7900
3650
4260
4860
5470
6080
6680
7290
7900
3650
4260
4860
5470
6080
6680
7290
7900
3650
4260
4860
5470
6080
6680
7290
7900
3650
4260
4860
5470
6080
6680
7140
7580
3470
4040
4620
5200
5770
6350
6930
7500
3470
4040
4620
5200
5770
6350
6930
7500
3470
4040
4620
5200
5770
6350
6930
7500
3470
4040
4620
5200
5770
6350
6930
7500
3470
4040
4620
5200
5770
6350
6870
7290
3310
3870
4420
4970
5520
6070
6630
7180
3310
3870
4420
4970
5520
6070
6630
7180
3310
3870
4420
4970
5520
6070
6630
7180
3310
3870
4420
4970
5520
6070
6630
7180
3310
3870
4420
4970
5520
6070
6630
7050
3190
3720
4250
4780
5310
5840
6370
6900
3190
3720
4250
4780
5310
5840
6370
6900
3190
3720
4250
4780
5310
5840
6370
6900
3190
3720
4250
4780
5310
5840
6370
6900
3190
3720
4250
4780
5310
5840
6370
6850
3080
3590
4100
4610
5130
5640
6150
6660
3080
3590
4100
4610
5130
5640
6150
6660
3080
3590
4100
4610
5130
5640
6150
6660
3080
3590
4100
4610
5130
5640
6150
6660
3080
3590
4100
4610
5130
5640
6150
6660
2980
3480
3970
4470
4970
5460
5960
6450
2980
3480
3970
4470
4970
5460
5960
6450
2980
3480
3970
4470
4970
5460
5960
6450
2980
3480
3970
4470
4970
5460
5960
6450
2980
3480
3970
4470
4970
5460
5960
6450
2900
3380
3860
4340
4820
5310
5790
6270
2900
3380
3860
4340
4820
5310
5790
6270
2900
3380
3860
4340
4820
5310
5790
6270
2900
3380
3860
4340
4820
5310
5790
6270
2900
3380
3860
4340
4820
5310
5790
6270
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
Back to Menu
Roof Weight: Heavy
Roof Pitch, α: 0° to 25°
GL10 (88mm width) Techlam Ridge Beam Span Tables
Beam Size
(mm)
270x88
315x88
360x88
405x88
450x88
495x88
540x88
585x88
270x88
315x88
360x88
405x88
450x88
495x88
540x88
585x88
270x88
315x88
360x88
405x88
450x88
495x88
540x88
585x88
270x88
315x88
360x88
405x88
450x88
495x88
540x88
585x88
270x88
315x88
360x88
405x88
450x88
495x88
540x88
585x88
Back to Menu
Wind Zone
(NZS3604)
Low
Medium
High
Very
High
Extra
High
Loaded Width (mm)
1000
1500
2000
2500
3000
3500
4000
4500
5000
5500
6000
6150
7180
8200
9230
10300
11300
12300
13300
6150
7180
8200
9230
10300
11300
12200
12900
6150
7180
8190
8950
9690
10400
11100
11800
6150
6950
7680
8390
9080
9750
10400
11000
5910
6630
7330
8000
8660
9300
9930
10500
5380
6270
7170
8060
8960
9850
10700
11600
5380
6270
7170
8060
8960
9850
10700
11600
5380
6270
7170
8060
8750
9400
10000
10700
5380
6270
6940
7580
8200
8810
9400
9980
5340
5990
6620
7230
7830
8410
8970
9530
4890
5700
6510
7320
8140
8950
9760
10600
4890
5700
6510
7320
8140
8950
9760
10600
4890
5700
6510
7320
8140
8750
9340
9920
4890
5700
6460
7050
7630
8200
8750
9290
4890
5570
6160
6730
7280
7820
8350
8870
4540
5290
6050
6800
7560
8310
9060
9820
4540
5290
6050
6800
7560
8310
9060
9820
4540
5290
6050
6800
7560
8270
8830
9380
4540
5290
6050
6670
7220
7750
8280
8790
4540
5270
5830
6370
6890
7400
7900
8390
4270
4980
5690
6400
7110
7820
8530
9240
4270
4980
5690
6400
7110
7820
8530
9240
4270
4980
5690
6400
7110
7820
8440
8960
4270
4980
5690
6370
6900
7410
7910
8400
4270
4980
5570
6080
6580
7070
7550
8010
4050
4730
5400
6080
6750
7430
8100
8780
4050
4730
5400
6080
6750
7430
8100
8780
4050
4730
5400
6080
6750
7430
8100
8620
4050
4730
5400
6080
6640
7130
7610
8080
4050
4730
5360
5850
6330
6800
7260
7710
3880
4520
5170
5820
6460
7110
7750
8400
3880
4520
5170
5820
6460
7110
7750
8400
3880
4520
5170
5820
6460
7110
7750
8340
3880
4520
5170
5820
6420
6890
7360
7810
3880
4520
5170
5660
6130
6580
7020
7460
3730
4350
4970
5590
6210
6830
7450
8070
3730
4350
4970
5590
6210
6830
7450
8070
3730
4350
4970
5590
6210
6830
7450
8070
3730
4350
4970
5590
6210
6690
7140
7590
3730
4350
4970
5500
5950
6390
6820
7240
3600
4200
4800
5400
6000
6600
7200
7800
3600
4200
4800
5400
6000
6600
7200
7800
3600
4200
4800
5400
6000
6600
7200
7800
3600
4200
4800
5400
6000
6520
6960
7390
3600
4200
4800
5350
5790
6220
6640
7050
3490
4070
4650
5230
5810
6390
6970
7550
3490
4070
4650
5230
5810
6390
6970
7550
3490
4070
4650
5230
5810
6390
6970
7550
3490
4070
4650
5230
5810
6370
6790
7220
3490
4070
4650
5230
5660
6080
6490
6890
3390
3950
4520
5080
5640
6210
6770
7340
3390
3950
4520
5080
5640
6210
6770
7340
3390
3950
4520
5080
5640
6210
6770
7340
3390
3950
4520
5080
5640
6210
6650
7060
3390
3950
4520
5080
5540
5950
6350
6740
© Copyright
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
67
Roof Weight: Heavy
Roof Pitch, α: 25° to 45°
GL10 (88mm width) Techlam Ridge Beam Span Tables
Beam Size
(mm)
68
270x88
315x88
360x88
405x88
450x88
495x88
540x88
585x88
270x88
315x88
360x88
405x88
450x88
495x88
540x88
585x88
270x88
315x88
360x88
405x88
450x88
495x88
540x88
585x88
270x88
315x88
360x88
405x88
450x88
495x88
540x88
585x88
270x88
315x88
360x88
405x88
450x88
495x88
540x88
585x88
© Copyright
Wind Zone
(NZS3604)
Low
Medium
High
Very
High
Extra
High
Loaded Width (mm)
1000
1500
2000
2500
3000
3500
4000
4500
5000
5500
6000
5670
6610
7550
8490
9440
10400
11300
12300
5670
6610
7550
8490
9440
10400
11300
12300
5670
6610
7550
8490
9440
10400
11100
11800
5670
6610
7550
8390
9080
9750
10400
11000
5670
6610
7330
8000
8660
9300
9930
10500
4950
5770
6600
7420
8250
9070
9890
10700
4950
5770
6600
7420
8250
9070
9890
10700
4950
5770
6600
7420
8250
9070
9890
10700
4950
5770
6600
7420
8200
8810
9400
9980
4950
5770
6600
7230
7830
8410
8970
9530
4500
5250
6000
6740
7490
8240
8990
9740
4500
5250
6000
6740
7490
8240
8990
9740
4500
5250
6000
6740
7490
8240
8990
9740
4500
5250
6000
6740
7490
8200
8750
9290
4500
5250
6000
6730
7280
7820
8350
8870
4180
4870
5570
6260
6960
7650
8350
9040
4180
4870
5570
6260
6960
7650
8350
9040
4180
4870
5570
6260
6960
7650
8350
9040
4180
4870
5570
6260
6960
7650
8280
8790
4180
4870
5570
6260
6890
7400
7900
8390
3930
4580
5240
5890
6550
7200
7850
8510
3930
4580
5240
5890
6550
7200
7850
8510
3930
4580
5240
5890
6550
7200
7850
8510
3930
4580
5240
5890
6550
7200
7850
8400
3930
4580
5240
5890
6550
7070
7550
8010
3730
4350
4980
5600
6220
6840
7460
8080
3730
4350
4980
5600
6220
6840
7460
8080
3730
4350
4980
5600
6220
6840
7460
8080
3730
4350
4980
5600
6220
6840
7460
8080
3730
4350
4980
5600
6220
6800
7260
7710
3570
4170
4760
5350
5950
6540
7140
7730
3570
4170
4760
5350
5950
6540
7140
7730
3570
4170
4760
5350
5950
6540
7140
7730
3570
4170
4760
5350
5950
6540
7140
7730
3570
4170
4760
5350
5950
6540
7020
7460
3430
4000
4580
5150
5720
6290
6860
7430
3430
4000
4580
5150
5720
6290
6860
7430
3430
4000
4580
5150
5720
6290
6860
7430
3430
4000
4580
5150
5720
6290
6860
7430
3430
4000
4580
5150
5720
6290
6820
7240
3310
3870
4420
4970
5520
6070
6630
7180
3310
3870
4420
4970
5520
6070
6630
7180
3310
3870
4420
4970
5520
6070
6630
7180
3310
3870
4420
4970
5520
6070
6630
7180
3310
3870
4420
4970
5520
6070
6630
7050
3210
3750
4280
4820
5350
5880
6420
6950
3210
3750
4280
4820
5350
5880
6420
6950
3210
3750
4280
4820
5350
5880
6420
6950
3210
3750
4280
4820
5350
5880
6420
6950
3210
3750
4280
4820
5350
5880
6420
6890
3120
3640
4160
4680
5200
5720
6240
6750
3120
3640
4160
4680
5200
5720
6240
6750
3120
3640
4160
4680
5200
5720
6240
6750
3120
3640
4160
4680
5200
5720
6240
6750
3120
3640
4160
4680
5200
5720
6240
6740
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
Back to Menu
Roof Weight: Heavy
Roof Pitch, α: 0° to 25°
GL12 (88mm width) Techlam Ridge Beam Span Tables
Beam Size
(mm)
270x88
315x88
360x88
405x88
450x88
495x88
540x88
585x88
270x88
315x88
360x88
405x88
450x88
495x88
540x88
585x88
270x88
315x88
360x88
405x88
450x88
495x88
540x88
585x88
270x88
315x88
360x88
405x88
450x88
495x88
540x88
585x88
270x88
315x88
360x88
405x88
450x88
495x88
540x88
585x88
Back to Menu
Wind Zone
(NZS3604)
Low
Medium
High
Very
High
Extra
High
Loaded Width (mm)
1000
1500
2000
2500
3000
3500
4000
4500
5000
5500
6000
6450
7520
8590
9670
10700
11800
12900
14000
6450
7520
8590
9670
10700
11800
12600
13400
6450
7520
8480
9270
10000
10800
11500
12200
6410
7190
7950
8680
9400
10100
10800
11400
6120
6870
7590
8290
8970
9640
10300
10900
5630
6570
7510
8450
9380
10300
11300
12200
5630
6570
7510
8450
9380
10300
11300
12100
5630
6570
7510
8370
9060
9730
10400
11000
5630
6500
7180
7850
8490
9120
9740
10300
5530
6200
6860
7490
8110
8710
9290
9870
5120
5970
6820
7670
8530
9380
10200
11100
5120
5970
6820
7670
8530
9380
10200
11100
5120
5970
6820
7670
8430
9060
9670
10300
5120
5970
6690
7300
7900
8490
9060
9620
5120
5770
6380
6970
7540
8100
8650
9180
4750
5540
6330
7120
7920
8710
9500
10300
4750
5540
6330
7120
7920
8710
9500
10300
4750
5540
6330
7120
7920
8570
9150
9710
4750
5540
6320
6910
7470
8030
8570
9100
4750
5460
6030
6590
7130
7660
8180
8690
4470
5220
5960
6700
7450
8190
8940
9680
4470
5220
5960
6700
7450
8190
8940
9680
4470
5220
5960
6700
7450
8190
8740
9280
4470
5220
5960
6600
7140
7670
8190
8690
4470
5220
5770
6300
6820
7320
7820
8300
4250
4960
5660
6370
7080
7780
8490
9200
4250
4960
5660
6370
7080
7780
8490
9200
4250
4960
5660
6370
7080
7780
8410
8930
4250
4960
5660
6350
6870
7380
7880
8370
4250
4960
5550
6060
6560
7040
7520
7990
4060
4740
5420
6090
6770
7440
8120
8800
4060
4740
5420
6090
6770
7440
8120
8800
4060
4740
5420
6090
6770
7440
8120
8630
4060
4740
5420
6090
6650
7140
7620
8090
4060
4740
5370
5860
6340
6810
7270
7720
3910
4560
5210
5860
6510
7160
7810
8460
3910
4560
5210
5860
6510
7160
7810
8460
3910
4560
5210
5860
6510
7160
7810
8380
3910
4560
5210
5860
6450
6930
7400
7860
3910
4560
5210
5690
6160
6620
7060
7500
3770
4400
5030
5660
6280
6910
7540
8170
3770
4400
5030
5660
6280
6910
7540
8170
3770
4400
5030
5660
6280
6910
7540
8170
3770
4400
5030
5660
6280
6750
7210
7650
3770
4400
5030
5540
6000
6440
6880
7300
3650
4260
4870
5480
6090
6700
7300
7910
3650
4260
4870
5480
6090
6700
7300
7910
3650
4260
4870
5480
6090
6700
7300
7910
3650
4260
4870
5480
6090
6590
7040
7470
3650
4260
4870
5410
5860
6290
6720
7130
3550
4140
4730
5320
5910
6500
7090
7690
3550
4140
4730
5320
5910
6500
7090
7690
3550
4140
4730
5320
5910
6500
7090
7690
3550
4140
4730
5320
5910
6450
6880
7310
3550
4140
4730
5300
5730
6160
6570
6980
© Copyright
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
69
Roof Weight: Heavy
Roof Pitch, α: 25° to 45°
GL12 (88mm width) Techlam Ridge Beam Span Tables
Beam Size
(mm)
70
270x88
315x88
360x88
405x88
450x88
495x88
540x88
585x88
270x88
315x88
360x88
405x88
450x88
495x88
540x88
585x88
270x88
315x88
360x88
405x88
450x88
495x88
540x88
585x88
270x88
315x88
360x88
405x88
450x88
495x88
540x88
585x88
270x88
315x88
360x88
405x88
450x88
495x88
540x88
585x88
© Copyright
Wind Zone
(NZS3604)
Low
Medium
High
Very
High
Extra
High
Loaded Width (mm)
1000
1500
2000
2500
3000
3500
4000
4500
5000
5500
6000
5940
6920
7910
8900
9890
10900
11900
12900
5940
6920
7910
8900
9890
10900
11900
12900
5940
6920
7910
8900
9890
10800
11500
12200
5940
6920
7910
8680
9400
10100
10800
11400
5940
6870
7590
8290
8970
9640
10300
10900
5190
6050
6910
7780
8640
9500
10400
11200
5190
6050
6910
7780
8640
9500
10400
11200
5190
6050
6910
7780
8640
9500
10400
11000
5190
6050
6910
7780
8490
9120
9740
10300
5190
6050
6860
7490
8110
8710
9290
9870
4710
5500
6280
7070
7850
8630
9420
10200
4710
5500
6280
7070
7850
8630
9420
10200
4710
5500
6280
7070
7850
8630
9420
10200
4710
5500
6280
7070
7850
8490
9060
9620
4710
5500
6280
6970
7540
8100
8650
9180
4370
5100
5830
6560
7290
8020
8740
9470
4370
5100
5830
6560
7290
8020
8740
9470
4370
5100
5830
6560
7290
8020
8740
9470
4370
5100
5830
6560
7290
8020
8570
9100
4370
5100
5830
6560
7130
7660
8180
8690
4120
4800
5490
6170
6860
7540
8230
8910
4120
4800
5490
6170
6860
7540
8230
8910
4120
4800
5490
6170
6860
7540
8230
8910
4120
4800
5490
6170
6860
7540
8190
8690
4120
4800
5490
6170
6820
7320
7820
8300
3910
4560
5210
5860
6510
7170
7820
8470
3910
4560
5210
5860
6510
7170
7820
8470
3910
4560
5210
5860
6510
7170
7820
8470
3910
4560
5210
5860
6510
7170
7820
8370
3910
4560
5210
5860
6510
7040
7520
7990
3740
4360
4990
5610
6230
6850
7480
8100
3740
4360
4990
5610
6230
6850
7480
8100
3740
4360
4990
5610
6230
6850
7480
8100
3740
4360
4990
5610
6230
6850
7480
8090
3740
4360
4990
5610
6230
6810
7270
7720
3600
4200
4790
5390
5990
6590
7190
7790
3600
4200
4790
5390
5990
6590
7190
7790
3600
4200
4790
5390
5990
6590
7190
7790
3600
4200
4790
5390
5990
6590
7190
7790
3600
4200
4790
5390
5990
6590
7060
7500
3470
4050
4630
5210
5790
6360
6940
7520
3470
4050
4630
5210
5790
6360
6940
7520
3470
4050
4630
5210
5790
6360
6940
7520
3470
4050
4630
5210
5790
6360
6940
7520
3470
4050
4630
5210
5790
6360
6880
7300
3360
3920
4480
5040
5600
6160
6720
7280
3360
3920
4480
5040
5600
6160
6720
7280
3360
3920
4480
5040
5600
6160
6720
7280
3360
3920
4480
5040
5600
6160
6720
7280
3360
3920
4480
5040
5600
6160
6720
7130
3270
3810
4360
4900
5440
5990
6530
7080
3270
3810
4360
4900
5440
5990
6530
7080
3270
3810
4360
4900
5440
5990
6530
7080
3270
3810
4360
4900
5440
5990
6530
7080
3270
3810
4360
4900
5440
5990
6530
6980
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
Back to Menu
Roof Weight: Light
Roof Pitch, α: 0° to 25°
GL8 (135mm width) Techlam Ridge Beam Span Tables
Beam Size
(mm)
270x135
315x135
360x135
405x135
450x135
495x135
540x135
585x135
270x135
315x135
360x135
405x135
450x135
495x135
540x135
585x135
270x135
315x135
360x135
405x135
450x135
495x135
540x135
585x135
270x135
315x135
360x135
405x135
450x135
495x135
540x135
585x135
270x135
315x135
360x135
405x135
450x135
495x135
540x135
585x135
Back to Menu
Wind Zone
(NZS3604)
Low
Medium
High
Very
High
Extra
High
Loaded Width (mm)
1000
1500
2000
2500
3000
3500
4000
4500
5000
5500
6000
8180
9180
10100
11100
12000
12900
13800
14600
7610
8550
9450
10300
11200
12000
12800
13600
6950
7800
8620
9420
10200
10900
11700
12400
6510
7310
8080
8830
9550
10300
11000
11600
6220
6980
7710
8430
9120
9790
10500
11100
7390
8300
9170
10000
10800
11600
12400
13200
6880
7720
8540
9320
10100
10800
11600
12300
6280
7050
7790
8510
9210
9890
10600
11200
5880
6610
7300
7980
8630
9270
9900
10500
5620
6310
6970
7610
8240
8850
9450
10000
6880
7720
8530
9320
10100
10800
11600
12300
6400
7190
7940
8680
9390
10100
10800
11400
5840
6560
7250
7920
8570
9210
9830
10400
5480
6150
6790
7420
8030
8630
9210
9780
5230
5870
6490
7080
7670
8240
8790
9330
6440
7300
8070
8810
9540
10200
10900
11600
6050
6800
7510
8210
8880
9540
10200
10800
5530
6200
6860
7490
8110
8710
9300
9870
5180
5810
6430
7020
7600
8160
8710
9250
4940
5550
6130
6700
7250
7790
8310
8830
6060
6980
7710
8420
9110
9790
10500
11100
5780
6490
7180
7840
8490
9110
9730
10300
5280
5930
6550
7160
7750
8320
8880
9430
4950
5550
6140
6710
7260
7800
8320
8840
4720
5300
5860
6400
6930
7440
7940
8430
5760
6710
7420
8100
8770
9420
10100
10700
5570
6250
6910
7540
8160
8770
9360
9940
5080
5700
6300
6890
7450
8010
8550
9070
4760
5340
5910
6450
6980
7500
8010
8500
4540
5100
5640
6160
6670
7160
7640
8120
5510
6420
7180
7840
8480
9110
9730
10300
5380
6040
6680
7300
7900
8480
9050
9610
4910
5520
6100
6660
7210
7740
8260
8780
4600
5170
5710
6240
6750
7260
7740
8220
4400
4930
5450
5960
6450
6930
7390
7850
5290
6180
6970
7610
8240
8850
9440
10000
5230
5870
6490
7080
7670
8240
8790
9330
4770
5360
5920
6470
7000
7520
8020
8520
4470
5020
5550
6060
6560
7040
7520
7980
4270
4790
5300
5780
6260
6720
7180
7620
5110
5960
6790
7410
8020
8620
9200
9770
5090
5720
6320
6900
7470
8020
8560
9090
4650
5220
5770
6300
6820
7320
7820
8300
4350
4890
5400
5900
6390
6860
7320
7780
4160
4670
5160
5630
6100
6550
6990
7420
4950
5780
6600
7240
7830
8410
8980
9540
4950
5580
6170
6740
7290
7830
8360
8880
4540
5090
5630
6150
6660
7150
7630
8100
4250
4770
5280
5760
6240
6700
7150
7590
4060
4560
5040
5500
5950
6400
6830
7250
4810
5610
6410
7080
7660
8230
8790
9330
4810
5460
6040
6590
7140
7660
8180
8690
4440
4980
5510
6020
6510
7000
7470
7930
4160
4670
5160
5640
6100
6560
7000
7430
3970
4460
4930
5380
5830
6260
6680
7090
© Copyright
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
71
Roof Weight: Light
Roof Pitch, α: 25° to 45°
GL8 (135mm width) Techlam Ridge Beam Span Tables
Beam Size
(mm)
72
270x135
315x135
360x135
405x135
450x135
495x135
540x135
585x135
270x135
315x135
360x135
405x135
450x135
495x135
540x135
585x135
270x135
315x135
360x135
405x135
450x135
495x135
540x135
585x135
270x135
315x135
360x135
405x135
450x135
495x135
540x135
585x135
270x135
315x135
360x135
405x135
450x135
495x135
540x135
585x135
© Copyright
Wind Zone
(NZS3604)
Low
Medium
High
Very
High
Extra
High
Loaded Width (mm)
1000
1500
2000
2500
3000
3500
4000
4500
5000
5500
6000
8040
9180
10100
11100
12000
12900
13800
14600
7610
8550
9450
10300
11200
12000
12800
13600
6950
7800
8620
9420
10200
10900
11700
12400
6510
7310
8080
8830
9550
10300
11000
11600
6220
6980
7710
8430
9120
9790
10500
11100
7030
8200
9170
10000
10800
11600
12400
13200
6880
7720
8540
9320
10100
10800
11600
12300
6280
7050
7790
8510
9210
9890
10600
11200
5880
6610
7300
7980
8630
9270
9900
10500
5620
6310
6970
7610
8240
8850
9450
10000
6380
7450
8510
9320
10100
10800
11600
12300
6380
7190
7940
8680
9390
10100
10800
11400
5840
6560
7250
7920
8570
9210
9830
10400
5480
6150
6790
7420
8030
8630
9210
9780
5230
5870
6490
7080
7670
8240
8790
9330
5930
6910
7900
8810
9540
10200
10900
11600
5930
6800
7510
8210
8880
9540
10200
10800
5530
6200
6860
7490
8110
8710
9300
9870
5180
5810
6430
7020
7600
8160
8710
9250
4940
5550
6130
6700
7250
7790
8310
8830
5580
6510
7440
8360
9110
9790
10500
11100
5580
6490
7180
7840
8490
9110
9730
10300
5280
5930
6550
7160
7750
8320
8880
9430
4950
5550
6140
6710
7260
7800
8320
8840
4720
5300
5860
6400
6930
7440
7940
8430
5300
6180
7060
7950
8770
9420
10100
10700
5300
6180
6910
7540
8160
8770
9360
9940
5080
5700
6300
6890
7450
8010
8550
9070
4760
5340
5910
6450
6980
7500
8010
8500
4540
5100
5640
6160
6670
7160
7640
8120
5070
5910
6760
7600
8440
9110
9730
10300
5070
5910
6680
7300
7900
8480
9050
9610
4910
5520
6100
6660
7210
7740
8260
8780
4600
5170
5710
6240
6750
7260
7740
8220
4400
4930
5450
5960
6450
6930
7390
7850
4870
5690
6500
7310
8120
8850
9440
10000
4870
5690
6490
7080
7670
8240
8790
9330
4770
5360
5920
6470
7000
7520
8020
8520
4470
5020
5550
6060
6560
7040
7520
7980
4270
4790
5300
5780
6260
6720
7180
7620
4710
5490
6270
7060
7840
8620
9200
9770
4710
5490
6270
6900
7470
8020
8560
9090
4650
5220
5770
6300
6820
7320
7820
8300
4350
4890
5400
5900
6390
6860
7320
7780
4160
4670
5160
5630
6100
6550
6990
7420
4560
5320
6080
6840
7590
8350
8980
9540
4560
5320
6080
6740
7290
7830
8360
8880
4540
5090
5630
6150
6660
7150
7630
8100
4250
4770
5280
5760
6240
6700
7150
7590
4060
4560
5040
5500
5950
6400
6830
7250
4430
5170
5900
6640
7380
8110
8790
9330
4430
5170
5900
6590
7140
7660
8180
8690
4430
4980
5510
6020
6510
7000
7470
7930
4160
4670
5160
5640
6100
6560
7000
7430
3970
4460
4930
5380
5830
6260
6680
7090
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
Back to Menu
Roof Weight: Light
Roof Pitch, α: 0° to 25°
GL10 (135mm width) Techlam Ridge Beam Span Tables
Beam Size
(mm)
270x135
315x135
360x135
405x135
450x135
495x135
540x135
585x135
270x135
315x135
360x135
405x135
450x135
495x135
540x135
585x135
270x135
315x135
360x135
405x135
450x135
495x135
540x135
585x135
270x135
315x135
360x135
405x135
450x135
495x135
540x135
585x135
270x135
315x135
360x135
405x135
450x135
495x135
540x135
585x135
Back to Menu
Wind Zone
(NZS3604)
Low
Medium
High
Very
High
Extra
High
Loaded Width (mm)
1000
1500
2000
2500
3000
3500
4000
4500
5000
5500
6000
8650
9710
10700
11700
12700
13600
14500
15400
8050
9040
9990
10900
11800
12700
13500
14400
7350
8250
9120
9960
10800
11600
12400
13100
6890
7730
8540
9330
10100
10800
11600
12300
6570
7380
8160
8910
9640
10400
11100
11700
7810
8770
9690
10600
11500
12300
13100
14000
7270
8170
9030
9860
10700
11500
12200
13000
6640
7450
8240
9000
9740
10500
11200
11900
6220
6980
7720
8430
9130
9800
10500
11100
5940
6670
7370
8050
8710
9360
9990
10600
7270
8160
9020
9860
10700
11500
12200
13000
6770
7600
8400
9170
9930
10700
11400
12100
6180
6940
7670
8380
9060
9740
10400
11000
5790
6500
7180
7850
8490
9120
9740
10300
5530
6200
6860
7490
8110
8710
9300
9870
6880
7720
8530
9320
10100
10800
11600
12300
6400
7190
7940
8680
9390
10100
10800
11400
5840
6560
7250
7920
8570
9210
9830
10400
5480
6150
6790
7420
8030
8630
9210
9780
5230
5870
6490
7080
7670
8240
8790
9330
6530
7380
8150
8910
9640
10400
11000
11700
6120
6870
7590
8290
8970
9640
10300
10900
5580
6270
6930
7570
8190
8800
9390
9970
5230
5870
6490
7090
7670
8240
8800
9340
4990
5610
6200
6770
7330
7870
8400
8920
6200
7100
7840
8570
9270
9960
10600
11300
5890
6610
7300
7980
8630
9270
9900
10500
5370
6030
6670
7280
7880
8460
9040
9590
5030
5650
6250
6820
7380
7930
8470
8990
4810
5390
5960
6510
7050
7570
8080
8580
5930
6860
7590
8290
8970
9630
10300
10900
5690
6390
7060
7720
8350
8970
9570
10200
5200
5830
6450
7040
7620
8190
8740
9280
4870
5470
6040
6600
7140
7670
8190
8700
4650
5220
5770
6300
6820
7320
7820
8300
5700
6650
7370
8050
8710
9350
9980
10600
5530
6200
6860
7490
8110
8710
9300
9870
5050
5660
6260
6840
7400
7950
8490
9010
4730
5310
5870
6410
6930
7450
7950
8440
4510
5070
5600
6120
6620
7110
7590
8060
5510
6420
7180
7840
8480
9110
9730
10300
5380
6040
6680
7300
7900
8480
9050
9610
4910
5520
6100
6660
7210
7740
8260
8780
4600
5170
5710
6240
6750
7260
7740
8220
4400
4930
5450
5960
6450
6930
7390
7850
5330
6220
7010
7650
8280
8900
9500
10100
5260
5900
6520
7120
7710
8280
8840
9390
4800
5390
5950
6500
7040
7560
8070
8570
4500
5050
5580
6090
6600
7080
7560
8030
4290
4820
5330
5820
6300
6760
7220
7660
5180
6040
6860
7490
8100
8700
9290
9870
5140
5770
6380
6970
7540
8100
8650
9190
4700
5270
5830
6360
6890
7400
7900
8390
4400
4940
5460
5960
6450
6930
7400
7860
4200
4710
5210
5690
6160
6620
7060
7500
© Copyright
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
73
Roof Weight: Light
Roof Pitch, α: 25° to 45°
GL10 (135mm width) Techlam Ridge Beam Span Tables
Beam Size
(mm)
74
270x135
315x135
360x135
405x135
450x135
495x135
540x135
585x135
270x135
315x135
360x135
405x135
450x135
495x135
540x135
585x135
270x135
315x135
360x135
405x135
450x135
495x135
540x135
585x135
270x135
315x135
360x135
405x135
450x135
495x135
540x135
585x135
270x135
315x135
360x135
405x135
450x135
495x135
540x135
585x135
© Copyright
Wind Zone
(NZS3604)
Low
Medium
High
Very
High
Extra
High
Loaded Width (mm)
1000
1500
2000
2500
3000
3500
4000
4500
5000
5500
6000
8650
9710
10700
11700
12700
13600
14500
15400
8050
9040
9990
10900
11800
12700
13500
14400
7350
8250
9120
9960
10800
11600
12400
13100
6890
7730
8540
9330
10100
10800
11600
12300
6570
7380
8160
8910
9640
10400
11100
11700
7570
8770
9690
10600
11500
12300
13100
14000
7270
8170
9030
9860
10700
11500
12200
13000
6640
7450
8240
9000
9740
10500
11200
11900
6220
6980
7720
8430
9130
9800
10500
11100
5940
6670
7370
8050
8710
9360
9990
10600
6880
8020
9020
9860
10700
11500
12200
13000
6770
7600
8400
9170
9930
10700
11400
12100
6180
6940
7670
8380
9060
9740
10400
11000
5790
6500
7180
7850
8490
9120
9740
10300
5530
6200
6860
7490
8110
8710
9300
9870
6380
7450
8510
9320
10100
10800
11600
12300
6380
7190
7940
8680
9390
10100
10800
11400
5840
6560
7250
7920
8570
9210
9830
10400
5480
6150
6790
7420
8030
8630
9210
9780
5230
5870
6490
7080
7670
8240
8790
9330
6010
7010
8010
8910
9640
10400
11000
11700
6010
6870
7590
8290
8970
9640
10300
10900
5580
6270
6930
7570
8190
8800
9390
9970
5230
5870
6490
7090
7670
8240
8800
9340
4990
5610
6200
6770
7330
7870
8400
8920
5710
6660
7610
8560
9270
9960
10600
11300
5710
6610
7300
7980
8630
9270
9900
10500
5370
6030
6670
7280
7880
8460
9040
9590
5030
5650
6250
6820
7380
7930
8470
8990
4810
5390
5960
6510
7050
7570
8080
8580
5460
6370
7280
8190
8970
9630
10300
10900
5460
6370
7060
7720
8350
8970
9570
10200
5200
5830
6450
7040
7620
8190
8740
9280
4870
5470
6040
6600
7140
7670
8190
8700
4650
5220
5770
6300
6820
7320
7820
8300
5250
6120
7000
7870
8710
9350
9980
10600
5250
6120
6860
7490
8110
8710
9300
9870
5050
5660
6260
6840
7400
7950
8490
9010
4730
5310
5870
6410
6930
7450
7950
8440
4510
5070
5600
6120
6620
7110
7590
8060
5070
5910
6760
7600
8440
9110
9730
10300
5070
5910
6680
7300
7900
8480
9050
9610
4910
5520
6100
6660
7210
7740
8260
8780
4600
5170
5710
6240
6750
7260
7740
8220
4400
4930
5450
5960
6450
6930
7390
7850
4910
5730
6550
7360
8180
8900
9500
10100
4910
5730
6520
7120
7710
8280
8840
9390
4800
5390
5950
6500
7040
7560
8070
8570
4500
5050
5580
6090
6600
7080
7560
8030
4290
4820
5330
5820
6300
6760
7220
7660
4770
5560
6360
7150
7950
8700
9290
9870
4770
5560
6360
6970
7540
8100
8650
9190
4700
5270
5830
6360
6890
7400
7900
8390
4400
4940
5460
5960
6450
6930
7400
7860
4200
4710
5210
5690
6160
6620
7060
7500
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
Back to Menu
Roof Weight: Light
Roof Pitch, α: 0° to 25°
GL12 (135mm width) Techlam Ridge Beam Span Tables
Beam Size
(mm)
270x135
315x135
360x135
405x135
450x135
495x135
540x135
585x135
270x135
315x135
360x135
405x135
450x135
495x135
540x135
585x135
270x135
315x135
360x135
405x135
450x135
495x135
540x135
585x135
270x135
315x135
360x135
405x135
450x135
495x135
540x135
585x135
270x135
315x135
360x135
405x135
450x135
495x135
540x135
585x135
Back to Menu
Wind Zone
(NZS3604)
Low
Medium
High
Very
High
Extra
High
Loaded Width (mm)
1000
1500
2000
2500
3000
3500
4000
4500
5000
5500
6000
8950
10100
11100
12100
13100
14100
15100
16000
8340
9360
10300
11300
12200
13100
14000
14900
7610
8540
9440
10300
11200
12000
12800
13600
7130
8000
8850
9660
10500
11200
12000
12700
6810
7640
8450
9230
9980
10700
11400
12200
7930
9080
10000
11000
11900
12700
13600
14400
7530
8460
9350
10200
11000
11900
12700
13500
6880
7720
8530
9320
10100
10800
11600
12300
6440
7230
7990
8730
9450
10200
10800
11500
6150
6900
7630
8340
9020
9690
10300
11000
7200
8400
9340
10200
11000
11900
12700
13400
7010
7870
8700
9500
10300
11000
11800
12500
6400
7180
7940
8670
9390
10100
10800
11400
6000
6730
7440
8130
8800
9450
10100
10700
5720
6420
7100
7760
8400
9020
9630
10200
6690
7800
8840
9650
10400
11200
12000
12700
6630
7440
8230
8990
9720
10400
11100
11800
6050
6790
7510
8200
8880
9530
10200
10800
5670
6370
7040
7690
8320
8930
9540
10100
5410
6080
6720
7340
7940
8530
9100
9670
6290
7340
8390
9220
9980
10700
11400
12200
6290
7110
7860
8590
9290
9980
10700
11300
5780
6490
7170
7840
8480
9110
9720
10300
5420
6080
6720
7340
7950
8540
9110
9680
5170
5810
6420
7010
7590
8150
8700
9240
5980
6980
7970
8870
9600
10300
11000
11700
5980
6840
7560
8260
8940
9600
10200
10900
5560
6250
6900
7540
8160
8770
9360
9940
5210
5850
6470
7070
7650
8210
8770
9310
4980
5590
6170
6740
7300
7840
8370
8890
5720
6670
7620
8580
9290
9980
10600
11300
5720
6620
7310
7990
8650
9290
9910
10500
5380
6040
6680
7290
7890
8480
9050
9610
5040
5660
6260
6830
7400
7940
8480
9000
4810
5400
5970
6520
7060
7580
8090
8590
5500
6420
7330
8250
9020
9690
10300
11000
5500
6420
7100
7760
8400
9020
9630
10200
5220
5870
6480
7080
7660
8230
8790
9330
4900
5500
6070
6640
7180
7710
8230
8740
4670
5250
5800
6330
6850
7360
7860
8350
5310
6190
7080
7960
8780
9430
10100
10700
5310
6190
6920
7560
8180
8780
9380
9960
5090
5710
6310
6900
7460
8020
8560
9090
4770
5350
5920
6460
6990
7510
8020
8520
4550
5110
5650
6170
6680
7170
7660
8130
5140
6000
6860
7710
8570
9210
9830
10400
5140
6000
6750
7380
7980
8580
9150
9720
4970
5580
6170
6740
7290
7830
8360
8870
4660
5230
5780
6310
6830
7340
7830
8320
4440
4990
5510
6020
6520
7000
7470
7940
5000
5830
6660
7490
8320
9010
9620
10200
5000
5830
6610
7220
7810
8390
8960
9510
4860
5460
6030
6590
7130
7660
8180
8680
4560
5110
5650
6180
6680
7180
7660
8140
4350
4880
5400
5890
6380
6850
7310
7770
© Copyright
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
75
Roof Weight: Light
Roof Pitch, α: 25° to 45°
GL12 (135mm width) Techlam Ridge Beam Span Tables
Beam Size
(mm)
76
270x135
315x135
360x135
405x135
450x135
495x135
540x135
585x135
270x135
315x135
360x135
405x135
450x135
495x135
540x135
585x135
270x135
315x135
360x135
405x135
450x135
495x135
540x135
585x135
270x135
315x135
360x135
405x135
450x135
495x135
540x135
585x135
270x135
315x135
360x135
405x135
450x135
495x135
540x135
585x135
© Copyright
Wind Zone
(NZS3604)
Low
Medium
High
Very
High
Extra
High
Loaded Width (mm)
1000
1500
2000
2500
3000
3500
4000
4500
5000
5500
6000
8950
10100
11100
12100
13100
14100
15100
16000
8340
9360
10300
11300
12200
13100
14000
14900
7610
8540
9440
10300
11200
12000
12800
13600
7130
8000
8850
9660
10500
11200
12000
12700
6810
7640
8450
9230
9980
10700
11400
12200
7930
9080
10000
11000
11900
12700
13600
14400
7530
8460
9350
10200
11000
11900
12700
13500
6880
7720
8530
9320
10100
10800
11600
12300
6440
7230
7990
8730
9450
10200
10800
11500
6150
6900
7630
8340
9020
9690
10300
11000
7200
8400
9340
10200
11000
11900
12700
13400
7010
7870
8700
9500
10300
11000
11800
12500
6400
7180
7940
8670
9390
10100
10800
11400
6000
6730
7440
8130
8800
9450
10100
10700
5720
6420
7100
7760
8400
9020
9630
10200
6690
7800
8840
9650
10400
11200
12000
12700
6630
7440
8230
8990
9720
10400
11100
11800
6050
6790
7510
8200
8880
9530
10200
10800
5670
6370
7040
7690
8320
8930
9540
10100
5410
6080
6720
7340
7940
8530
9100
9670
6290
7340
8390
9220
9980
10700
11400
12200
6290
7110
7860
8590
9290
9980
10700
11300
5780
6490
7170
7840
8480
9110
9720
10300
5420
6080
6720
7340
7950
8540
9110
9680
5170
5810
6420
7010
7590
8150
8700
9240
5980
6980
7970
8870
9600
10300
11000
11700
5980
6840
7560
8260
8940
9600
10200
10900
5560
6250
6900
7540
8160
8770
9360
9940
5210
5850
6470
7070
7650
8210
8770
9310
4980
5590
6170
6740
7300
7840
8370
8890
5720
6670
7620
8580
9290
9980
10600
11300
5720
6620
7310
7990
8650
9290
9910
10500
5380
6040
6680
7290
7890
8480
9050
9610
5040
5660
6260
6830
7400
7940
8480
9000
4810
5400
5970
6520
7060
7580
8090
8590
5500
6420
7330
8250
9020
9690
10300
11000
5500
6420
7100
7760
8400
9020
9630
10200
5220
5870
6480
7080
7660
8230
8790
9330
4900
5500
6070
6640
7180
7710
8230
8740
4670
5250
5800
6330
6850
7360
7860
8350
5310
6190
7080
7960
8780
9430
10100
10700
5310
6190
6920
7560
8180
8780
9380
9960
5090
5710
6310
6900
7460
8020
8560
9090
4770
5350
5920
6460
6990
7510
8020
8520
4550
5110
5650
6170
6680
7170
7660
8130
5140
6000
6860
7710
8570
9210
9830
10400
5140
6000
6750
7380
7980
8580
9150
9720
4970
5580
6170
6740
7290
7830
8360
8870
4660
5230
5780
6310
6830
7340
7830
8320
4440
4990
5510
6020
6520
7000
7470
7940
5000
5830
6660
7490
8320
9010
9620
10200
5000
5830
6610
7220
7810
8390
8960
9510
4860
5460
6030
6590
7130
7660
8180
8680
4560
5110
5650
6180
6680
7180
7660
8140
4350
4880
5400
5890
6380
6850
7310
7770
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
Back to Menu
Roof Weight: Heavy
Roof Pitch, α: 0° to 25°
GL8 (135mm width) Techlam Ridge Beam Span Tables
Beam Size
(mm)
270x135
315x135
360x135
405x135
450x135
495x135
540x135
585x135
270x135
315x135
360x135
405x135
450x135
495x135
540x135
585x135
270x135
315x135
360x135
405x135
450x135
495x135
540x135
585x135
270x135
315x135
360x135
405x135
450x135
495x135
540x135
585x135
270x135
315x135
360x135
405x135
450x135
495x135
540x135
585x135
Back to Menu
Wind Zone
(NZS3604)
Low
Medium
High
Very
High
Extra
High
Loaded Width (mm)
1000
1500
2000
2500
3000
3500
4000
4500
5000
5500
6000
6590
7680
8780
9880
11000
12100
13200
14300
6590
7680
8780
9880
11000
12000
12800
13600
6590
7680
8620
9420
10200
10900
11700
12400
6510
7310
8080
8830
9550
10300
11000
11600
6220
6980
7710
8430
9120
9790
10500
11100
5760
6710
7670
8630
9590
10500
11500
12500
5760
6710
7670
8630
9590
10500
11500
12300
5760
6710
7670
8510
9210
9890
10600
11200
5760
6610
7300
7980
8630
9270
9900
10500
5620
6310
6970
7610
8240
8850
9450
10000
5230
6100
6970
7840
8710
9580
10500
11300
5230
6100
6970
7840
8710
9580
10500
11300
5230
6100
6970
7840
8570
9210
9830
10400
5230
6100
6790
7420
8030
8630
9210
9780
5230
5870
6490
7080
7670
8240
8790
9330
4860
5660
6470
7280
8090
8900
9700
10500
4860
5660
6470
7280
8090
8900
9700
10500
4860
5660
6470
7280
8090
8710
9300
9870
4860
5660
6430
7020
7600
8160
8710
9250
4860
5550
6130
6700
7250
7790
8310
8830
4570
5330
6090
6850
7610
8370
9130
9890
4570
5330
6090
6850
7610
8370
9130
9890
4570
5330
6090
6850
7610
8320
8880
9430
4570
5330
6090
6710
7260
7800
8320
8840
4570
5300
5860
6400
6930
7440
7940
8430
4340
5060
5790
6510
7230
7950
8680
9400
4340
5060
5790
6510
7230
7950
8680
9400
4340
5060
5790
6510
7230
7950
8550
9070
4340
5060
5790
6450
6980
7500
8010
8500
4340
5060
5640
6160
6670
7160
7640
8120
4150
4840
5530
6230
6920
7610
8300
8990
4150
4840
5530
6230
6920
7610
8300
8990
4150
4840
5530
6230
6920
7610
8260
8780
4150
4840
5530
6230
6750
7260
7740
8220
4150
4840
5450
5960
6450
6930
7390
7850
3990
4660
5320
5990
6650
7310
7980
8640
3990
4660
5320
5990
6650
7310
7980
8640
3990
4660
5320
5990
6650
7310
7980
8520
3990
4660
5320
5990
6560
7040
7520
7980
3990
4660
5300
5780
6260
6720
7180
7620
3850
4500
5140
5780
6420
7060
7700
8350
3850
4500
5140
5780
6420
7060
7700
8350
3850
4500
5140
5780
6420
7060
7700
8300
3850
4500
5140
5780
6390
6860
7320
7780
3850
4500
5140
5630
6100
6550
6990
7420
3730
4360
4980
5600
6220
6840
7460
8080
3730
4360
4980
5600
6220
6840
7460
8080
3730
4360
4980
5600
6220
6840
7460
8080
3730
4360
4980
5600
6220
6700
7150
7590
3730
4360
4980
5500
5950
6400
6830
7250
3630
4230
4840
5440
6040
6650
7250
7850
3630
4230
4840
5440
6040
6650
7250
7850
3630
4230
4840
5440
6040
6650
7250
7850
3630
4230
4840
5440
6040
6560
7000
7430
3630
4230
4840
5380
5830
6260
6680
7090
© Copyright
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
77
Roof Weight: Heavy
Roof Pitch, α: 25° to 45°
GL8 (135mm width) Techlam Ridge Beam Span Tables
Beam Size
(mm)
78
270x135
315x135
360x135
405x135
450x135
495x135
540x135
585x135
270x135
315x135
360x135
405x135
450x135
495x135
540x135
585x135
270x135
315x135
360x135
405x135
450x135
495x135
540x135
585x135
270x135
315x135
360x135
405x135
450x135
495x135
540x135
585x135
270x135
315x135
360x135
405x135
450x135
495x135
540x135
585x135
© Copyright
Wind Zone
(NZS3604)
Low
Medium
High
Very
High
Extra
High
Loaded Width (mm)
1000
1500
2000
2500
3000
3500
4000
4500
5000
5500
6000
6070
7080
8080
9090
10100
11100
12100
13100
6070
7080
8080
9090
10100
11100
12100
13100
6070
7080
8080
9090
10100
10900
11700
12400
6070
7080
8080
8830
9550
10300
11000
11600
6070
6980
7710
8430
9120
9790
10500
11100
5300
6180
7060
7950
8830
9710
10600
11500
5300
6180
7060
7950
8830
9710
10600
11500
5300
6180
7060
7950
8830
9710
10600
11200
5300
6180
7060
7950
8630
9270
9900
10500
5300
6180
6970
7610
8240
8850
9450
10000
4820
5620
6420
7220
8020
8820
9620
10400
4820
5620
6420
7220
8020
8820
9620
10400
4820
5620
6420
7220
8020
8820
9620
10400
4820
5620
6420
7220
8020
8630
9210
9780
4820
5620
6420
7080
7670
8240
8790
9330
4470
5210
5960
6700
7450
8190
8930
9680
4470
5210
5960
6700
7450
8190
8930
9680
4470
5210
5960
6700
7450
8190
8930
9680
4470
5210
5960
6700
7450
8160
8710
9250
4470
5210
5960
6700
7250
7790
8310
8830
4210
4910
5610
6310
7010
7710
8410
9110
4210
4910
5610
6310
7010
7710
8410
9110
4210
4910
5610
6310
7010
7710
8410
9110
4210
4910
5610
6310
7010
7710
8320
8840
4210
4910
5610
6310
6930
7440
7940
8430
4000
4660
5330
5990
6660
7320
7990
8650
4000
4660
5330
5990
6660
7320
7990
8650
4000
4660
5330
5990
6660
7320
7990
8650
4000
4660
5330
5990
6660
7320
7990
8500
4000
4660
5330
5990
6660
7160
7640
8120
3820
4460
5100
5730
6370
7000
7640
8280
3820
4460
5100
5730
6370
7000
7640
8280
3820
4460
5100
5730
6370
7000
7640
8280
3820
4460
5100
5730
6370
7000
7640
8220
3820
4460
5100
5730
6370
6930
7390
7850
3680
4290
4900
5510
6120
6730
7350
7960
3680
4290
4900
5510
6120
6730
7350
7960
3680
4290
4900
5510
6120
6730
7350
7960
3680
4290
4900
5510
6120
6730
7350
7960
3680
4290
4900
5510
6120
6720
7180
7620
3550
4140
4730
5320
5910
6500
7090
7680
3550
4140
4730
5320
5910
6500
7090
7680
3550
4140
4730
5320
5910
6500
7090
7680
3550
4140
4730
5320
5910
6500
7090
7680
3550
4140
4730
5320
5910
6500
6990
7420
3440
4010
4580
5160
5730
6300
6870
7440
3440
4010
4580
5160
5730
6300
6870
7440
3440
4010
4580
5160
5730
6300
6870
7440
3440
4010
4580
5160
5730
6300
6870
7440
3440
4010
4580
5160
5730
6300
6830
7250
3340
3900
4450
5010
5560
6120
6680
7230
3340
3900
4450
5010
5560
6120
6680
7230
3340
3900
4450
5010
5560
6120
6680
7230
3340
3900
4450
5010
5560
6120
6680
7230
3340
3900
4450
5010
5560
6120
6680
7090
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
Back to Menu
Roof Weight: Heavy
Roof Pitch, α: 0° to 25°
GL10 (135mm width) Techlam Ridge Beam Span Tables
Beam Size
(mm)
270x135
315x135
360x135
405x135
450x135
495x135
540x135
585x135
270x135
315x135
360x135
405x135
450x135
495x135
540x135
585x135
270x135
315x135
360x135
405x135
450x135
495x135
540x135
585x135
270x135
315x135
360x135
405x135
450x135
495x135
540x135
585x135
270x135
315x135
360x135
405x135
450x135
495x135
540x135
585x135
Back to Menu
Wind Zone
(NZS3604)
Low
Medium
High
Very
High
Extra
High
Loaded Width (mm)
1000
1500
2000
2500
3000
3500
4000
4500
5000
5500
6000
7100
8280
9460
10600
11800
13000
14200
15400
7100
8280
9460
10600
11800
12700
13500
14400
7100
8250
9120
9960
10800
11600
12400
13100
6890
7730
8540
9330
10100
10800
11600
12300
6570
7380
8160
8910
9640
10400
11100
11700
6200
7230
8260
9300
10300
11400
12400
13400
6200
7230
8260
9300
10300
11400
12200
13000
6200
7230
8240
9000
9740
10500
11200
11900
6200
6980
7720
8430
9130
9800
10500
11100
5940
6670
7370
8050
8710
9360
9990
10600
5630
6570
7510
8450
9380
10300
11300
12200
5630
6570
7510
8450
9380
10300
11300
12100
5630
6570
7510
8380
9060
9740
10400
11000
5630
6500
7180
7850
8490
9120
9740
10300
5530
6200
6860
7490
8110
8710
9300
9870
5230
6100
6970
7840
8710
9580
10500
11300
5230
6100
6970
7840
8710
9580
10500
11300
5230
6100
6970
7840
8570
9210
9830
10400
5230
6100
6790
7420
8030
8630
9210
9780
5230
5870
6490
7080
7670
8240
8790
9330
4920
5740
6560
7380
8200
9020
9840
10700
4920
5740
6560
7380
8200
9020
9840
10700
4920
5740
6560
7380
8190
8800
9390
9970
4920
5740
6490
7090
7670
8240
8800
9340
4920
5610
6200
6770
7330
7870
8400
8920
4680
5450
6230
7010
7790
8570
9340
10100
4680
5450
6230
7010
7790
8570
9340
10100
4680
5450
6230
7010
7790
8460
9040
9590
4680
5450
6230
6820
7380
7930
8470
8990
4680
5390
5960
6510
7050
7570
8080
8580
4470
5220
5960
6710
7450
8190
8940
9680
4470
5220
5960
6710
7450
8190
8940
9680
4470
5220
5960
6710
7450
8190
8740
9280
4470
5220
5960
6600
7140
7670
8190
8700
4470
5220
5770
6300
6820
7320
7820
8300
4300
5020
5730
6450
7160
7880
8590
9310
4300
5020
5730
6450
7160
7880
8590
9310
4300
5020
5730
6450
7160
7880
8490
9010
4300
5020
5730
6410
6930
7450
7950
8440
4300
5020
5600
6120
6620
7110
7590
8060
4150
4840
5530
6230
6920
7610
8300
8990
4150
4840
5530
6230
6920
7610
8300
8990
4150
4840
5530
6230
6920
7610
8260
8780
4150
4840
5530
6230
6750
7260
7740
8220
4150
4840
5450
5960
6450
6930
7390
7850
4020
4690
5360
6030
6700
7370
8040
8710
4020
4690
5360
6030
6700
7370
8040
8710
4020
4690
5360
6030
6700
7370
8040
8570
4020
4690
5360
6030
6600
7080
7560
8030
4020
4690
5330
5820
6300
6760
7220
7660
3910
4560
5210
5860
6510
7160
7810
8460
3910
4560
5210
5860
6510
7160
7810
8460
3910
4560
5210
5860
6510
7160
7810
8390
3910
4560
5210
5860
6450
6930
7400
7860
3910
4560
5210
5690
6160
6620
7060
7500
© Copyright
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
79
Roof Weight: Heavy
Roof Pitch, α: 25° to 45°
GL10 (135mm width) Techlam Ridge Beam Span Tables
Beam Size
(mm)
80
270x135
315x135
360x135
405x135
450x135
495x135
540x135
585x135
270x135
315x135
360x135
405x135
450x135
495x135
540x135
585x135
270x135
315x135
360x135
405x135
450x135
495x135
540x135
585x135
270x135
315x135
360x135
405x135
450x135
495x135
540x135
585x135
270x135
315x135
360x135
405x135
450x135
495x135
540x135
585x135
© Copyright
Wind Zone
(NZS3604)
Low
Medium
High
Very
High
Extra
High
Loaded Width (mm)
1000
1500
2000
2500
3000
3500
4000
4500
5000
5500
6000
6530
7620
8710
9800
10900
12000
13100
14100
6530
7620
8710
9800
10900
12000
13100
14100
6530
7620
8710
9800
10800
11600
12400
13100
6530
7620
8540
9330
10100
10800
11600
12300
6530
7380
8160
8910
9640
10400
11100
11700
5710
6660
7610
8560
9510
10500
11400
12400
5710
6660
7610
8560
9510
10500
11400
12400
5710
6660
7610
8560
9510
10500
11200
11900
5710
6660
7610
8430
9130
9800
10500
11100
5710
6660
7370
8050
8710
9360
9990
10600
5190
6050
6910
7780
8640
9500
10400
11200
5190
6050
6910
7780
8640
9500
10400
11200
5190
6050
6910
7780
8640
9500
10400
11000
5190
6050
6910
7780
8490
9120
9740
10300
5190
6050
6860
7490
8110
8710
9300
9870
4820
5620
6420
7220
8020
8820
9620
10400
4820
5620
6420
7220
8020
8820
9620
10400
4820
5620
6420
7220
8020
8820
9620
10400
4820
5620
6420
7220
8020
8630
9210
9780
4820
5620
6420
7080
7670
8240
8790
9330
4530
5290
6040
6790
7550
8300
9060
9810
4530
5290
6040
6790
7550
8300
9060
9810
4530
5290
6040
6790
7550
8300
9060
9810
4530
5290
6040
6790
7550
8240
8800
9340
4530
5290
6040
6770
7330
7870
8400
8920
4300
5020
5740
6450
7170
7890
8600
9320
4300
5020
5740
6450
7170
7890
8600
9320
4300
5020
5740
6450
7170
7890
8600
9320
4300
5020
5740
6450
7170
7890
8470
8990
4300
5020
5740
6450
7050
7570
8080
8580
4120
4800
5490
6170
6860
7540
8230
8910
4120
4800
5490
6170
6860
7540
8230
8910
4120
4800
5490
6170
6860
7540
8230
8910
4120
4800
5490
6170
6860
7540
8190
8700
4120
4800
5490
6170
6820
7320
7820
8300
3960
4620
5280
5940
6600
7250
7910
8570
3960
4620
5280
5940
6600
7250
7910
8570
3960
4620
5280
5940
6600
7250
7910
8570
3960
4620
5280
5940
6600
7250
7910
8440
3960
4620
5280
5940
6600
7110
7590
8060
3820
4460
5100
5730
6370
7000
7640
8280
3820
4460
5100
5730
6370
7000
7640
8280
3820
4460
5100
5730
6370
7000
7640
8280
3820
4460
5100
5730
6370
7000
7640
8220
3820
4460
5100
5730
6370
6930
7390
7850
3700
4320
4940
5550
6170
6790
7400
8020
3700
4320
4940
5550
6170
6790
7400
8020
3700
4320
4940
5550
6170
6790
7400
8020
3700
4320
4940
5550
6170
6790
7400
8020
3700
4320
4940
5550
6170
6760
7220
7660
3600
4200
4800
5390
5990
6590
7190
7790
3600
4200
4800
5390
5990
6590
7190
7790
3600
4200
4800
5390
5990
6590
7190
7790
3600
4200
4800
5390
5990
6590
7190
7790
3600
4200
4800
5390
5990
6590
7060
7500
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
Back to Menu
Roof Weight: Heavy
Roof Pitch, α: 0° to 25°
GL12 (135mm width) Techlam Ridge Beam Span Tables
Beam Size
(mm)
270x135
315x135
360x135
405x135
450x135
495x135
540x135
585x135
270x135
315x135
360x135
405x135
450x135
495x135
540x135
585x135
270x135
315x135
360x135
405x135
450x135
495x135
540x135
585x135
270x135
315x135
360x135
405x135
450x135
495x135
540x135
585x135
270x135
315x135
360x135
405x135
450x135
495x135
540x135
585x135
Back to Menu
Wind Zone
(NZS3604)
Low
Medium
High
Very
High
Extra
High
Loaded Width (mm)
1000
1500
2000
2500
3000
3500
4000
4500
5000
5500
6000
7430
8670
9910
11100
12400
13600
14900
16000
7430
8670
9910
11100
12200
13100
14000
14900
7430
8540
9440
10300
11200
12000
12800
13600
7130
8000
8850
9660
10500
11200
12000
12700
6810
7640
8450
9230
9980
10700
11400
12200
6500
7580
8660
9740
10800
11900
13000
14100
6500
7580
8660
9740
10800
11900
12700
13500
6500
7580
8530
9320
10100
10800
11600
12300
6440
7230
7990
8730
9450
10200
10800
11500
6150
6900
7630
8340
9020
9690
10300
11000
5900
6880
7870
8850
9830
10800
11800
12800
5900
6880
7870
8850
9830
10800
11800
12500
5900
6880
7870
8670
9390
10100
10800
11400
5900
6730
7440
8130
8800
9450
10100
10700
5720
6420
7100
7760
8400
9020
9630
10200
5480
6390
7300
8220
9130
10000
11000
11900
5480
6390
7300
8220
9130
10000
11000
11800
5480
6390
7300
8200
8880
9530
10200
10800
5480
6370
7040
7690
8320
8930
9540
10100
5410
6080
6720
7340
7940
8530
9100
9670
5160
6010
6870
7730
8590
9450
10300
11200
5160
6010
6870
7730
8590
9450
10300
11200
5160
6010
6870
7730
8480
9110
9720
10300
5160
6010
6720
7340
7950
8540
9110
9680
5160
5810
6420
7010
7590
8150
8700
9240
4900
5710
6530
7340
8160
8980
9790
10600
4900
5710
6530
7340
8160
8980
9790
10600
4900
5710
6530
7340
8160
8770
9360
9940
4900
5710
6470
7070
7650
8210
8770
9310
4900
5590
6170
6740
7300
7840
8370
8890
4690
5470
6250
7030
7810
8580
9360
10100
4690
5470
6250
7030
7810
8580
9360
10100
4690
5470
6250
7030
7810
8480
9050
9610
4690
5470
6250
6830
7400
7940
8480
9000
4690
5400
5970
6520
7060
7580
8090
8590
4510
5260
6010
6760
7500
8250
9000
9750
4510
5260
6010
6760
7500
8250
9000
9750
4510
5260
6010
6760
7500
8230
8790
9330
4510
5260
6010
6640
7180
7710
8230
8740
4510
5250
5800
6330
6850
7360
7860
8350
4350
5070
5800
6520
7250
7970
8690
9420
4350
5070
5800
6520
7250
7970
8690
9420
4350
5070
5800
6520
7250
7970
8560
9090
4350
5070
5800
6460
6990
7510
8020
8520
4350
5070
5650
6170
6680
7170
7660
8130
4210
4920
5620
6320
7020
7720
8420
9120
4210
4920
5620
6320
7020
7720
8420
9120
4210
4920
5620
6320
7020
7720
8360
8870
4210
4920
5620
6310
6830
7340
7830
8320
4210
4920
5510
6020
6520
7000
7470
7940
4090
4780
5460
6140
6820
7500
8180
8860
4090
4780
5460
6140
6820
7500
8180
8860
4090
4780
5460
6140
6820
7500
8180
8680
4090
4780
5460
6140
6680
7180
7660
8140
4090
4780
5400
5890
6380
6850
7310
7770
© Copyright
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
81
Roof Weight: Heavy
Roof Pitch, α: 25° to 45°
GL12 (135mm width) Techlam Ridge Beam Span Tables
Beam Size
(mm)
82
270x135
315x135
360x135
405x135
450x135
495x135
540x135
585x135
270x135
315x135
360x135
405x135
450x135
495x135
540x135
585x135
270x135
315x135
360x135
405x135
450x135
495x135
540x135
585x135
270x135
315x135
360x135
405x135
450x135
495x135
540x135
585x135
270x135
315x135
360x135
405x135
450x135
495x135
540x135
585x135
© Copyright
Wind Zone
(NZS3604)
Low
Medium
High
Very
High
Extra
High
Loaded Width (mm)
1000
1500
2000
2500
3000
3500
4000
4500
5000
5500
6000
6840
7980
9120
10300
11400
12500
13700
14800
6840
7980
9120
10300
11400
12500
13700
14800
6840
7980
9120
10300
11200
12000
12800
13600
6840
7980
8850
9660
10500
11200
12000
12700
6810
7640
8450
9230
9980
10700
11400
12200
5980
6980
7970
8970
9960
11000
12000
12900
5980
6980
7970
8970
9960
11000
12000
12900
5980
6980
7970
8970
9960
10800
11600
12300
5980
6980
7970
8730
9450
10200
10800
11500
5980
6900
7630
8340
9020
9690
10300
11000
5430
6340
7240
8150
9050
9960
10900
11800
5430
6340
7240
8150
9050
9960
10900
11800
5430
6340
7240
8150
9050
9960
10800
11400
5430
6340
7240
8130
8800
9450
10100
10700
5430
6340
7100
7760
8400
9020
9630
10200
5040
5880
6720
7560
8400
9240
10100
10900
5040
5880
6720
7560
8400
9240
10100
10900
5040
5880
6720
7560
8400
9240
10100
10800
5040
5880
6720
7560
8320
8930
9540
10100
5040
5880
6720
7340
7940
8530
9100
9670
4750
5540
6330
7120
7910
8700
9490
10300
4750
5540
6330
7120
7910
8700
9490
10300
4750
5540
6330
7120
7910
8700
9490
10300
4750
5540
6330
7120
7910
8540
9110
9680
4750
5540
6330
7010
7590
8150
8700
9240
4510
5260
6010
6760
7510
8260
9010
9760
4510
5260
6010
6760
7510
8260
9010
9760
4510
5260
6010
6760
7510
8260
9010
9760
4510
5260
6010
6760
7510
8210
8770
9310
4510
5260
6010
6740
7300
7840
8370
8890
4310
5030
5750
6470
7190
7900
8620
9340
4310
5030
5750
6470
7190
7900
8620
9340
4310
5030
5750
6470
7190
7900
8620
9340
4310
5030
5750
6470
7190
7900
8480
9000
4310
5030
5750
6470
7060
7580
8090
8590
4150
4840
5530
6220
6910
7600
8290
8980
4150
4840
5530
6220
6910
7600
8290
8980
4150
4840
5530
6220
6910
7600
8290
8980
4150
4840
5530
6220
6910
7600
8230
8740
4150
4840
5530
6220
6850
7360
7860
8350
4000
4670
5340
6000
6670
7340
8000
8670
4000
4670
5340
6000
6670
7340
8000
8670
4000
4670
5340
6000
6670
7340
8000
8670
4000
4670
5340
6000
6670
7340
8000
8520
4000
4670
5340
6000
6670
7170
7660
8130
3880
4530
5170
5820
6460
7110
7750
8400
3880
4530
5170
5820
6460
7110
7750
8400
3880
4530
5170
5820
6460
7110
7750
8400
3880
4530
5170
5820
6460
7110
7750
8320
3880
4530
5170
5820
6460
7000
7470
7940
3770
4400
5020
5650
6280
6910
7530
8160
3770
4400
5020
5650
6280
6910
7530
8160
3770
4400
5020
5650
6280
6910
7530
8160
3770
4400
5020
5650
6280
6910
7530
8140
3770
4400
5020
5650
6280
6850
7310
7770
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
Back to Menu
83
Back to Menu
© Copyright
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
Li Te Ap
nt c
el hl p e
Sp am n
an R d i
x
o
Ta of D
bl
es
84
Figure D. Roof Lintel Loading
© Copyright
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
Back to Menu
Roof Weight: Light
Roof Pitch, α: 0° to 25°
GL8 (88mm width) Techlam Roof Lintel Span Tables
Beam Size
(mm)
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
Back to Menu
Wind Zone
(NZS3604
Low
Medium
High
Very
High
Extra
High
Loaded Width, LW (mm)
1000
1500
2000
2500
3000
3500
4000
4500
5000
5500
6000
3270
4360
5350
6130
6880
7600
8310
8990
3270
4210
4980
5710
6400
7080
7730
8370
2920
3840
4540
5210
5850
6460
7060
7640
2680
3570
4260
4880
5480
6060
6610
7160
2520
3360
4060
4660
5230
5780
6310
6830
2980
3980
4970
5810
6520
7200
7870
8520
2980
3980
4710
5400
6070
6710
7330
7930
2720
3620
4300
4930
5540
6120
6690
7240
2490
3320
4030
4620
5190
5740
6270
6780
2340
3120
3850
4410
4950
5480
5980
6470
2780
3710
4630
5550
6230
6890
7530
8150
2780
3710
4510
5170
5800
6410
7010
7580
2560
3420
4120
4720
5300
5860
6400
6920
2350
3130
3860
4420
4960
5490
5990
6490
2210
2940
3680
4220
4740
5240
5720
6190
2620
3490
4370
5240
6000
6630
7250
7840
2620
3490
4340
4980
5590
6180
6750
7300
2440
3250
3960
4540
5100
5640
6160
6670
2230
2980
3710
4260
4780
5280
5770
6250
2100
2800
3500
4060
4560
5040
5510
5960
2490
3320
4160
4990
5810
6420
7010
7590
2490
3320
4160
4820
5410
5980
6530
7070
2330
3110
3840
4400
4940
5460
5960
6450
2140
2850
3560
4120
4630
5110
5590
6040
2010
2680
3350
3930
4420
4880
5330
5770
2390
3180
3980
4780
5570
6240
6810
7370
2390
3180
3980
4680
5250
5810
6340
6860
2240
2990
3730
4270
4800
5300
5790
6270
2060
2740
3430
4000
4490
4970
5430
5870
1930
2580
3220
3820
4290
4740
5180
5600
2300
3060
3830
4600
5360
6080
6640
7180
2300
3060
3830
4560
5120
5660
6180
6690
2170
2890
3610
4160
4670
5160
5640
6110
1990
2650
3310
3900
4380
4840
5290
5720
1870
2490
3110
3720
4180
4620
5050
5460
2220
2960
3700
4440
5180
5920
6480
7020
2220
2960
3700
4440
5000
5530
6040
6530
2100
2800
3500
4070
4560
5040
5510
5960
1930
2570
3210
3810
4280
4730
5160
5590
1810
2410
3020
3620
4080
4510
4930
5330
2150
2870
3590
4300
5020
5740
6350
6870
2150
2870
3590
4300
4890
5410
5910
6390
2040
2720
3400
3980
4470
4940
5390
5840
1870
2500
3120
3730
4190
4630
5050
5470
1760
2350
2930
3520
4000
4420
4820
5220
2090
2790
3490
4180
4880
5580
6220
6730
2090
2790
3490
4180
4800
5300
5790
6270
1990
2650
3310
3900
4380
4840
5290
5720
1820
2430
3040
3640
4100
4540
4950
5360
1710
2280
2850
3420
3920
4330
4730
5120
2040
2720
3400
4070
4750
5430
6110
6610
2040
2720
3400
4070
4710
5210
5690
6150
1940
2590
3230
3830
4300
4750
5190
5620
1780
2370
2960
3560
4030
4450
4860
5260
1670
2230
2790
3340
3850
4250
4640
5020
© Copyright
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
85
Roof Weight: Light
Roof Pitch, α: 25° to 45°
GL8 (88mm width) Techlam Roof Lintel Span Tables
Beam Size
(mm)
86
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
© Copyright
Wind Zone
(NZS3604)
Low
Medium
High
Very
High
Extra
High
Loaded Width, LW (mm)
1000
1500
2000
2500
3000
3500
4000
4500
5000
5500
6000
3010
4010
5010
6020
6880
7600
8310
8990
3010
4010
4980
5710
6400
7080
7730
8370
2920
3840
4540
5210
5850
6460
7060
7640
2680
3570
4260
4880
5480
6060
6610
7160
2520
3360
4060
4660
5230
5780
6310
6830
2750
3660
4580
5490
6410
7200
7870
8520
2750
3660
4580
5400
6070
6710
7330
7930
2720
3620
4300
4930
5540
6120
6690
7240
2490
3320
4030
4620
5190
5740
6270
6780
2340
3120
3850
4410
4950
5480
5980
6470
2560
3410
4260
5120
5970
6820
7530
8150
2560
3410
4260
5120
5800
6410
7010
7580
2560
3410
4120
4720
5300
5860
6400
6920
2350
3130
3860
4420
4960
5490
5990
6490
2210
2940
3680
4220
4740
5240
5720
6190
2410
3220
4020
4830
5630
6430
7240
7840
2410
3220
4020
4830
5590
6180
6750
7300
2410
3220
3960
4540
5100
5640
6160
6670
2230
2980
3710
4260
4780
5280
5770
6250
2100
2800
3500
4060
4560
5040
5510
5960
2300
3060
3830
4590
5360
6120
6890
7590
2300
3060
3830
4590
5360
5980
6530
7070
2300
3060
3830
4400
4940
5460
5960
6450
2140
2850
3560
4120
4630
5110
5590
6040
2010
2680
3350
3930
4420
4880
5330
5770
2200
2930
3660
4400
5130
5860
6590
7330
2200
2930
3660
4400
5130
5810
6340
6860
2200
2930
3660
4270
4800
5300
5790
6270
2060
2740
3430
4000
4490
4970
5430
5870
1930
2580
3220
3820
4290
4740
5180
5600
2120
2820
3530
4230
4940
5640
6350
7050
2120
2820
3530
4230
4940
5640
6180
6690
2120
2820
3530
4160
4670
5160
5640
6110
1990
2650
3310
3900
4380
4840
5290
5720
1870
2490
3110
3720
4180
4620
5050
5460
2040
2730
3410
4090
4770
5450
6130
6810
2040
2730
3410
4090
4770
5450
6040
6530
2040
2730
3410
4070
4560
5040
5510
5960
1930
2570
3210
3810
4280
4730
5160
5590
1810
2410
3020
3620
4080
4510
4930
5330
1980
2640
3300
3960
4620
5280
5940
6600
1980
2640
3300
3960
4620
5280
5910
6390
1980
2640
3300
3960
4470
4940
5390
5840
1870
2500
3120
3730
4190
4630
5050
5470
1760
2350
2930
3520
4000
4420
4820
5220
1930
2570
3210
3850
4490
5130
5780
6420
1930
2570
3210
3850
4490
5130
5780
6270
1930
2570
3210
3850
4380
4840
5290
5720
1820
2430
3040
3640
4100
4540
4950
5360
1710
2280
2850
3420
3920
4330
4730
5120
1880
2500
3130
3750
4380
5000
5630
6250
1880
2500
3130
3750
4380
5000
5630
6150
1880
2500
3130
3750
4300
4750
5190
5620
1780
2370
2960
3560
4030
4450
4860
5260
1670
2230
2790
3340
3850
4250
4640
5020
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
Back to Menu
Roof Weight: Light
Roof Pitch, α: 0° to 25°
GL10 (88mm width) Techlam Roof Lintel Span Tables
Beam Size
(mm)
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
Back to Menu
Wind Zone
(NZS3604
Low
Medium
High
Very
High
Extra
High
Loaded Width, LW (mm)
1000
1500
2000
2500
3000
3500
4000
4500
5000
5500
6000
3490
4650
5650
6480
7270
8040
8780
9510
3490
4450
5260
6030
6770
7490
8180
8850
3150
4060
4800
5510
6180
6830
7460
8080
2890
3810
4500
5160
5790
6400
6990
7570
2710
3620
4300
4930
5530
6110
6680
7230
3190
4250
5310
6140
6890
7620
8320
9000
3190
4220
4980
5710
6410
7090
7750
8380
2930
3850
4550
5220
5860
6470
7070
7650
2690
3580
4260
4890
5490
6070
6630
7170
2520
3360
4070
4670
5240
5790
6320
6840
2970
3960
4950
5870
6590
7290
7960
8610
2970
3960
4770
5470
6140
6780
7410
8020
2760
3680
4350
4990
5600
6190
6760
7320
2530
3370
4080
4680
5250
5800
6340
6860
2380
3170
3890
4460
5010
5540
6050
6550
2800
3730
4670
5600
6350
7020
7660
8290
2800
3730
4590
5260
5910
6530
7130
7720
2620
3500
4190
4800
5390
5960
6510
7050
2410
3210
3930
4500
5050
5590
6100
6600
2260
3010
3750
4300
4820
5330
5820
6300
2660
3550
4440
5330
6140
6790
7420
8030
2660
3550
4440
5090
5720
6320
6900
7470
2510
3350
4060
4650
5220
5770
6300
6820
2300
3070
3800
4360
4890
5410
5910
6390
2170
2890
3610
4160
4670
5160
5640
6100
2550
3400
4250
5100
5950
6590
7200
7800
2550
3400
4250
4950
5550
6140
6710
7260
2420
3220
3940
4520
5070
5600
6120
6630
2220
2950
3690
4230
4750
5250
5740
6210
2080
2780
3470
4040
4540
5010
5480
5930
2460
3270
4090
4910
5730
6430
7020
7600
2460
3270
4090
4820
5410
5980
6530
7070
2330
3110
3840
4400
4940
5460
5970
6460
2140
2850
3570
4120
4630
5120
5590
6050
2010
2680
3350
3940
4420
4880
5340
5770
2370
3160
3950
4740
5530
6280
6860
7420
2370
3160
3950
4710
5290
5840
6380
6910
2260
3020
3750
4300
4830
5330
5830
6310
2070
2770
3460
4030
4520
5000
5460
5910
1950
2600
3250
3840
4320
4770
5210
5640
2300
3070
3830
4600
5360
6130
6710
7260
2300
3070
3830
4600
5170
5720
6250
6760
2200
2930
3660
4210
4720
5220
5700
6170
2020
2690
3360
3940
4430
4890
5340
5780
1900
2530
3160
3760
4220
4670
5100
5520
2240
2980
3720
4470
5210
5960
6580
7120
2240
2980
3720
4470
5070
5610
6120
6630
2140
2850
3570
4120
4630
5120
5590
6050
1960
2620
3270
3870
4340
4800
5240
5670
1850
2460
3070
3690
4140
4580
5000
5410
2180
2900
3630
4350
5080
5800
6460
6990
2180
2900
3630
4350
4980
5500
6010
6510
2090
2790
3480
4050
4550
5020
5490
5940
1920
2550
3190
3790
4260
4710
5140
5570
1800
2400
3000
3600
4070
4490
4910
5310
© Copyright
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
87
Roof Weight: Light
Roof Pitch, α: 25° to 45°
GL10 (88mm width) Techlam Roof Lintel Span Tables
Beam Size
(mm)
88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
© Copyright
Wind Zone
(NZS3604)
Low
Medium
High
Very
High
Extra
High
Loaded Width, LW (mm)
1000
1500
2000
2500
3000
3500
4000
4500
5000
5500
6000
3210
4280
5350
6420
7270
8040
8780
9510
3210
4280
5260
6030
6770
7490
8180
8850
3150
4060
4800
5510
6180
6830
7460
8080
2890
3810
4500
5160
5790
6400
6990
7570
2710
3620
4300
4930
5530
6110
6680
7230
2940
3910
4890
5870
6840
7620
8320
9000
2940
3910
4890
5710
6410
7090
7750
8380
2930
3850
4550
5220
5860
6470
7070
7650
2690
3580
4260
4890
5490
6070
6630
7170
2520
3360
4070
4670
5240
5790
6320
6840
2730
3640
4550
5460
6370
7280
7960
8610
2730
3640
4550
5460
6140
6780
7410
8020
2730
3640
4350
4990
5600
6190
6760
7320
2530
3370
4080
4680
5250
5800
6340
6860
2380
3170
3890
4460
5010
5540
6050
6550
2580
3440
4300
5150
6010
6870
7660
8290
2580
3440
4300
5150
5910
6530
7130
7720
2580
3440
4190
4800
5390
5960
6510
7050
2410
3210
3930
4500
5050
5590
6100
6600
2260
3010
3750
4300
4820
5330
5820
6300
2450
3270
4090
4900
5720
6540
7350
8030
2450
3270
4090
4900
5720
6320
6900
7470
2450
3270
4060
4650
5220
5770
6300
6820
2300
3070
3800
4360
4890
5410
5910
6390
2170
2890
3610
4160
4670
5160
5640
6100
2350
3130
3910
4700
5480
6260
7040
7800
2350
3130
3910
4700
5480
6140
6710
7260
2350
3130
3910
4520
5070
5600
6120
6630
2220
2950
3690
4230
4750
5250
5740
6210
2080
2780
3470
4040
4540
5010
5480
5930
2260
3010
3770
4520
5270
6020
6780
7530
2260
3010
3770
4520
5270
5980
6530
7070
2260
3010
3770
4400
4940
5460
5970
6460
2140
2850
3570
4120
4630
5120
5590
6050
2010
2680
3350
3940
4420
4880
5340
5770
2180
2910
3640
4370
5090
5820
6550
7270
2180
2910
3640
4370
5090
5820
6380
6910
2180
2910
3640
4300
4830
5330
5830
6310
2070
2770
3460
4030
4520
5000
5460
5910
1950
2600
3250
3840
4320
4770
5210
5640
2120
2820
3530
4230
4940
5640
6350
7050
2120
2820
3530
4230
4940
5640
6250
6760
2120
2820
3530
4210
4720
5220
5700
6170
2020
2690
3360
3940
4430
4890
5340
5780
1900
2530
3160
3760
4220
4670
5100
5520
2060
2740
3430
4110
4800
5480
6170
6850
2060
2740
3430
4110
4800
5480
6120
6630
2060
2740
3430
4110
4630
5120
5590
6050
1960
2620
3270
3870
4340
4800
5240
5670
1850
2460
3070
3690
4140
4580
5000
5410
2010
2670
3340
4010
4670
5340
6010
6680
2010
2670
3340
4010
4670
5340
6010
6510
2010
2670
3340
4010
4550
5020
5490
5940
1920
2550
3190
3790
4260
4710
5140
5570
1800
2400
3000
3600
4070
4490
4910
5310
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
Back to Menu
Roof Weight: Light
Roof Pitch, α: 0° to 25°
GL12 (88mm width) Techlam Roof Lintel Span Tables
Beam Size
(mm)
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
Back to Menu
Wind Zone
(NZS3604)
Low
Medium
High
Very
High
Extra
High
Loaded Width, LW (mm)
1000
1500
2000
2500
3000
3500
4000
4500
5000
5500
6000
3660
4880
5850
6710
7530
8330
9100
9840
3660
4610
5450
6250
7010
7750
8470
9160
3300
4210
4970
5700
6400
7080
7730
8370
3020
3940
4660
5340
6000
6630
7240
7840
2840
3760
4450
5100
5730
6330
6910
7480
3340
4450
5540
6360
7140
7890
8620
9320
3340
4370
5160
5920
6640
7340
8020
8680
3070
3990
4710
5400
6060
6700
7320
7920
2810
3730
4420
5060
5680
6280
6860
7430
2640
3520
4210
4830
5420
6000
6550
7090
3110
4150
5180
6080
6830
7540
8240
8920
3110
4150
4940
5660
6350
7020
7670
8300
2890
3810
4510
5170
5800
6410
7000
7580
2650
3530
4220
4840
5440
6010
6560
7100
2490
3320
4030
4620
5190
5730
6260
6780
2930
3910
4890
5850
6570
7260
7940
8590
2930
3910
4750
5450
6120
6760
7390
8000
2750
3660
4340
4980
5590
6170
6740
7300
2520
3360
4070
4660
5230
5790
6320
6840
2370
3160
3880
4450
5000
5520
6030
6530
2790
3720
4650
5580
6360
7030
7680
8310
2790
3720
4600
5270
5920
6540
7150
7740
2630
3510
4200
4820
5410
5970
6530
7060
2410
3220
3940
4510
5060
5600
6120
6620
2270
3020
3760
4310
4830
5340
5840
6320
2670
3560
4450
5340
6180
6830
7460
8070
2670
3560
4450
5120
5750
6360
6940
7520
2530
3380
4080
4680
5250
5800
6340
6860
2320
3100
3820
4380
4920
5440
5940
6430
2180
2910
3640
4180
4700
5190
5670
6140
2570
3430
4290
5140
6000
6650
7270
7870
2570
3430
4290
4990
5600
6190
6770
7320
2450
3260
3980
4560
5120
5650
6180
6690
2240
2990
3720
4270
4790
5300
5790
6260
2110
2810
3510
4080
4580
5060
5530
5980
2490
3310
4140
4970
5800
6500
7100
7680
2490
3310
4140
4880
5470
6050
6610
7150
2370
3160
3880
4450
5000
5520
6030
6530
2170
2900
3620
4170
4680
5180
5650
6120
2040
2720
3400
3980
4470
4940
5400
5840
2410
3210
4010
4820
5620
6360
6950
7520
2410
3210
4010
4770
5360
5920
6470
7000
2300
3070
3800
4360
4890
5410
5910
6390
2110
2820
3520
4080
4580
5070
5530
5990
1990
2650
3310
3900
4370
4840
5280
5720
2340
3120
3900
4680
5460
6240
6810
7370
2340
3120
3900
4680
5250
5810
6340
6860
2240
2990
3730
4270
4790
5300
5790
6270
2060
2740
3430
4000
4490
4970
5430
5870
1930
2580
3220
3820
4290
4740
5180
5600
2280
3040
3800
4560
5320
6080
6690
7240
2280
3040
3800
4560
5160
5700
6230
6740
2190
2920
3650
4190
4710
5200
5680
6150
2010
2680
3340
3930
4410
4880
5330
5760
1890
2520
3140
3750
4210
4650
5080
5500
© Copyright
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
89
Roof Weight: Light
Roof Pitch, α: 25° to 45°
GL12 (88mm width) Techlam Roof Lintel Span Tables
Beam Size
(mm)
90
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
© Copyright
Wind Zone
(NZS3604)
Low
Medium
High
Very
High
Extra
High
Loaded Width, LW (mm)
1000
1500
2000
2500
3000
3500
4000
4500
5000
5500
6000
3370
4490
5610
6710
7530
8330
9100
9840
3370
4490
5450
6250
7010
7750
8470
9160
3300
4210
4970
5700
6400
7080
7730
8370
3020
3940
4660
5340
6000
6630
7240
7840
2840
3760
4450
5100
5730
6330
6910
7480
3080
4100
5120
6150
7140
7890
8620
9320
3080
4100
5120
5920
6640
7340
8020
8680
3070
3990
4710
5400
6060
6700
7320
7920
2810
3730
4420
5060
5680
6280
6860
7430
2640
3520
4210
4830
5420
6000
6550
7090
2860
3820
4770
5730
6680
7540
8240
8920
2860
3820
4770
5660
6350
7020
7670
8300
2860
3810
4510
5170
5800
6410
7000
7580
2650
3530
4220
4840
5440
6010
6560
7100
2490
3320
4030
4620
5190
5730
6260
6780
2700
3600
4500
5400
6300
7200
7940
8590
2700
3600
4500
5400
6120
6760
7390
8000
2700
3600
4340
4980
5590
6170
6740
7300
2520
3360
4070
4660
5230
5790
6320
6840
2370
3160
3880
4450
5000
5520
6030
6530
2570
3430
4280
5140
5990
6850
7680
8310
2570
3430
4280
5140
5920
6540
7150
7740
2570
3430
4200
4820
5410
5970
6530
7060
2410
3220
3940
4510
5060
5600
6120
6620
2270
3020
3760
4310
4830
5340
5840
6320
2460
3280
4100
4920
5740
6560
7380
8070
2460
3280
4100
4920
5740
6360
6940
7520
2460
3280
4080
4680
5250
5800
6340
6860
2320
3100
3820
4380
4920
5440
5940
6430
2180
2910
3640
4180
4700
5190
5670
6140
2370
3160
3950
4730
5520
6310
7100
7870
2370
3160
3950
4730
5520
6190
6770
7320
2370
3160
3950
4560
5120
5650
6180
6690
2240
2990
3720
4270
4790
5300
5790
6260
2110
2810
3510
4080
4580
5060
5530
5980
2290
3050
3810
4570
5340
6100
6860
7620
2290
3050
3810
4570
5340
6050
6610
7150
2290
3050
3810
4450
5000
5520
6030
6530
2170
2900
3620
4170
4680
5180
5650
6120
2040
2720
3400
3980
4470
4940
5400
5840
2220
2960
3700
4430
5170
5910
6650
7390
2220
2960
3700
4430
5170
5910
6470
7000
2220
2960
3700
4360
4890
5410
5910
6390
2110
2820
3520
4080
4580
5070
5530
5990
1990
2650
3310
3900
4370
4840
5280
5720
2160
2870
3590
4310
5030
5740
6460
7180
2160
2870
3590
4310
5030
5740
6340
6860
2160
2870
3590
4270
4790
5300
5790
6270
2060
2740
3430
4000
4490
4970
5430
5870
1930
2580
3220
3820
4290
4740
5180
5600
2100
2800
3500
4200
4900
5600
6290
6990
2100
2800
3500
4200
4900
5600
6230
6740
2100
2800
3500
4190
4710
5200
5680
6150
2010
2680
3340
3930
4410
4880
5330
5760
1890
2520
3140
3750
4210
4650
5080
5500
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
Back to Menu
Roof Weight: Heavy
Roof Pitch, α: 0° to 25°
GL8 (88mm width) Techlam Roof Lintel Span Tables
Beam Size
(mm)
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
Back to Menu
Wind Zone
(NZS3604)
Low
Medium
High
Very High
Extra high
Loaded Width, LW (mm)
1000
1500
2000
2500
3000
3500
4000
4500
5000
5500
6000
2460
3280
4110
4930
5750
6570
7390
8210
2460
3280
4110
4930
5750
6570
7390
8210
2460
3280
4110
4930
5750
6460
7060
7640
2460
3280
4110
4880
5480
6060
6610
7160
2460
3280
4060
4660
5230
5780
6310
6830
2250
3000
3750
4500
5250
6000
6750
7500
2250
3000
3750
4500
5250
6000
6750
7500
2250
3000
3750
4500
5250
6000
6690
7240
2250
3000
3750
4500
5190
5740
6270
6780
2250
3000
3750
4410
4950
5480
5980
6470
2100
2790
3490
4190
4890
5590
6290
6980
2100
2790
3490
4190
4890
5590
6290
6980
2100
2790
3490
4190
4890
5590
6290
6920
2100
2790
3490
4190
4890
5490
5990
6490
2100
2790
3490
4190
4740
5240
5720
6190
1980
2630
3290
3950
4610
5270
5930
6590
1980
2630
3290
3950
4610
5270
5930
6590
1980
2630
3290
3950
4610
5270
5930
6590
1980
2630
3290
3950
4610
5270
5770
6250
1980
2630
3290
3950
4560
5040
5510
5960
1880
2510
3130
3760
4390
5010
5640
6270
1880
2510
3130
3760
4390
5010
5640
6270
1880
2510
3130
3760
4390
5010
5640
6270
1880
2510
3130
3760
4390
5010
5590
6040
1880
2510
3130
3760
4390
4880
5330
5770
1800
2400
3000
3600
4200
4800
5400
6000
1800
2400
3000
3600
4200
4800
5400
6000
1800
2400
3000
3600
4200
4800
5400
6000
1800
2400
3000
3600
4200
4800
5400
5870
1800
2400
3000
3600
4200
4740
5180
5600
1730
2310
2890
3470
4040
4620
5200
5780
1730
2310
2890
3470
4040
4620
5200
5780
1730
2310
2890
3470
4040
4620
5200
5780
1730
2310
2890
3470
4040
4620
5200
5720
1730
2310
2890
3470
4040
4620
5050
5460
1670
2230
2790
3350
3910
4460
5020
5580
1670
2230
2790
3350
3910
4460
5020
5580
1670
2230
2790
3350
3910
4460
5020
5580
1670
2230
2790
3350
3910
4460
5020
5580
1670
2230
2790
3350
3910
4460
4930
5330
1620
2160
2700
3250
3790
4330
4870
5410
1620
2160
2700
3250
3790
4330
4870
5410
1620
2160
2700
3250
3790
4330
4870
5410
1620
2160
2700
3250
3790
4330
4870
5410
1620
2160
2700
3250
3790
4330
4820
5220
1580
2100
2630
3150
3680
4210
4730
5260
1580
2100
2630
3150
3680
4210
4730
5260
1580
2100
2630
3150
3680
4210
4730
5260
1580
2100
2630
3150
3680
4210
4730
5260
1580
2100
2630
3150
3680
4210
4730
5120
1540
2050
2560
3070
3580
4100
4610
5120
1540
2050
2560
3070
3580
4100
4610
5120
1540
2050
2560
3070
3580
4100
4610
5120
1540
2050
2560
3070
3580
4100
4610
5120
1540
2050
2560
3070
3580
4100
4610
5020
© Copyright
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
91
Roof Weight: Heavy
Roof Pitch, α: 25° to 45°
GL8 (88mm width) Techlam Roof Lintel Span Tables
Beam Size
(mm)
92
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
© Copyright
Wind Zone
(NZS3604)
Low
Medium
High
Very
High
Extra
High
Loaded Width, LW (mm)
1000
1500
2000
2500
3000
3500
4000
4500
5000
5500
6000
2270
3020
3780
4540
5290
6050
6800
7560
2270
3020
3780
4540
5290
6050
6800
7560
2270
3020
3780
4540
5290
6050
6800
7560
2270
3020
3780
4540
5290
6050
6610
7160
2270
3020
3780
4540
5230
5780
6310
6830
2070
2760
3450
4140
4830
5520
6210
6900
2070
2760
3450
4140
4830
5520
6210
6900
2070
2760
3450
4140
4830
5520
6210
6900
2070
2760
3450
4140
4830
5520
6210
6780
2070
2760
3450
4140
4830
5480
5980
6470
1930
2570
3220
3860
4500
5140
5790
6430
1930
2570
3220
3860
4500
5140
5790
6430
1930
2570
3220
3860
4500
5140
5790
6430
1930
2570
3220
3860
4500
5140
5790
6430
1930
2570
3220
3860
4500
5140
5720
6190
1820
2430
3030
3640
4240
4850
5460
6060
1820
2430
3030
3640
4240
4850
5460
6060
1820
2430
3030
3640
4240
4850
5460
6060
1820
2430
3030
3640
4240
4850
5460
6060
1820
2430
3030
3640
4240
4850
5460
5960
1730
2310
2880
3460
4040
4620
5190
5770
1730
2310
2880
3460
4040
4620
5190
5770
1730
2310
2880
3460
4040
4620
5190
5770
1730
2310
2880
3460
4040
4620
5190
5770
1730
2310
2880
3460
4040
4620
5190
5770
1660
2210
2760
3310
3870
4420
4970
5520
1660
2210
2760
3310
3870
4420
4970
5520
1660
2210
2760
3310
3870
4420
4970
5520
1660
2210
2760
3310
3870
4420
4970
5520
1660
2210
2760
3310
3870
4420
4970
5520
1590
2130
2660
3190
3720
4250
4780
5320
1590
2130
2660
3190
3720
4250
4780
5320
1590
2130
2660
3190
3720
4250
4780
5320
1590
2130
2660
3190
3720
4250
4780
5320
1590
2130
2660
3190
3720
4250
4780
5320
1540
2050
2570
3080
3600
4110
4620
5140
1540
2050
2570
3080
3600
4110
4620
5140
1540
2050
2570
3080
3600
4110
4620
5140
1540
2050
2570
3080
3600
4110
4620
5140
1540
2050
2570
3080
3600
4110
4620
5140
1490
1990
2490
2990
3490
3980
4480
4980
1490
1990
2490
2990
3490
3980
4480
4980
1490
1990
2490
2990
3490
3980
4480
4980
1490
1990
2490
2990
3490
3980
4480
4980
1490
1990
2490
2990
3490
3980
4480
4980
1450
1940
2420
2900
3390
3870
4360
4840
1450
1940
2420
2900
3390
3870
4360
4840
1450
1940
2420
2900
3390
3870
4360
4840
1450
1940
2420
2900
3390
3870
4360
4840
1450
1940
2420
2900
3390
3870
4360
4840
1410
1890
2360
2830
3300
3770
4240
4710
1410
1890
2360
2830
3300
3770
4240
4710
1410
1890
2360
2830
3300
3770
4240
4710
1410
1890
2360
2830
3300
3770
4240
4710
1410
1890
2360
2830
3300
3770
4240
4710
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
Back to Menu
Roof Weight: Heavy
Roof Pitch, α: 0° to 25°
GL10 (88mm width) Techlam Roof Lintel Span Tables
Beam Size
(mm)
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
Back to Menu
Wind Zone
(NZS3604)
Low
Medium
High
Very
High
Extra
High
Loaded Width, LW (mm)
1000
1500
2000
2500
3000
3500
4000
4500
5000
5500
6000
2650
3540
4420
5310
6190
7080
7960
8850
2650
3540
4420
5310
6190
7080
7960
8850
2650
3540
4420
5310
6180
6830
7460
8080
2650
3540
3540
3540
5790
6400
6990
7570
2650
3540
4300
4930
5530
6110
6680
7230
2420
3230
4040
4850
5660
6460
7270
8080
2420
3230
4040
4850
5660
6460
7270
8080
2420
3230
4040
4850
5660
6460
7070
7650
2420
3230
3230
3230
5490
6070
6630
7170
2420
3230
4040
4670
5240
5790
6320
6840
2260
3010
3760
4510
5270
6020
6770
7520
2260
3010
3760
4510
5270
6020
6770
7520
2260
3010
3760
4510
5270
6020
6760
7320
2260
3010
3010
3010
5250
5800
6340
6860
2260
3010
3760
4460
5010
5540
6050
6550
2130
2840
3550
4260
4970
5680
6390
7100
2130
2840
3550
4260
4970
5680
6390
7100
2130
2840
3550
4260
4970
5680
6390
7050
2130
2840
2840
2840
4970
5590
6100
6600
2130
2840
3550
4260
4820
5330
5820
6300
2030
2700
3380
4050
4730
5400
6080
6750
2030
2700
3380
4050
4730
5400
6080
6750
2030
2700
3380
4050
4730
5400
6080
6750
2030
2700
2700
2700
4730
5400
5910
6390
2030
2700
3380
4050
4670
5160
5640
6100
1940
2590
3230
3880
4520
5170
5820
6460
1940
2590
3230
3880
4520
5170
5820
6460
1940
2590
3230
3880
4520
5170
5820
6460
1940
2590
2590
2590
4520
5170
5740
6210
1940
2590
3230
3880
4520
5010
5480
5930
1870
2490
3110
3730
4350
4980
5600
6220
1870
2490
3110
3730
4350
4980
5600
6220
1870
2490
3110
3730
4350
4980
5600
6220
1870
2490
2490
2490
4350
4980
5590
6050
1870
2490
3110
3730
4350
4880
5340
5770
1800
2400
3010
3610
4210
4810
5410
6010
1800
2400
3010
3610
4210
4810
5410
6010
1800
2400
3010
3610
4210
4810
5410
6010
1800
2400
2400
2400
4210
4810
5410
5910
1800
2400
3010
3610
4210
4770
5210
5640
1750
2330
2910
3500
4080
4660
5240
5830
1750
2330
2910
3500
4080
4660
5240
5830
1750
2330
2910
3500
4080
4660
5240
5830
1750
2330
2330
2330
4080
4660
5240
5780
1750
2330
2910
3500
4080
4660
5100
5520
1700
2260
2830
3400
3960
4530
5100
5660
1700
2260
2830
3400
3960
4530
5100
5660
1700
2260
2830
3400
3960
4530
5100
5660
1700
2260
2260
2260
3960
4530
5100
5660
1700
2260
2830
3400
3960
4530
5000
5410
1650
2210
2760
3310
3860
4410
4960
5520
1650
2210
2760
3310
3860
4410
4960
5520
1650
2210
2760
3310
3860
4410
4960
5520
1650
2210
2210
2210
3860
4410
4960
5520
1650
2210
2760
3310
3860
4410
4910
5310
© Copyright
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
93
Roof Weight: Heavy
Roof Pitch, α: 25° to 45°
GL10 (88mm width) Techlam Roof Lintel Span Tables
Beam Size
(mm)
94
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
© Copyright
Wind Zone
(NZS3604)
Low
Medium
High
Very
High
Extra
High
Loaded Width, LW (mm)
1000
1500
2000
2500
3000
3500
4000
4500
5000
5500
6000
2440
3260
4070
4890
5700
6510
7330
8140
2440
3260
4070
4890
5700
6510
7330
8140
2440
3260
4070
4890
5700
6510
7330
8080
2440
3260
4070
4890
5700
6400
6990
7570
2440
3260
4070
4890
5530
6110
6680
7230
2230
2980
3720
4460
5210
5950
6690
7440
2230
2980
3720
4460
5210
5950
6690
7440
2230
2980
3720
4460
5210
5950
6690
7440
2230
2980
3720
4460
5210
5950
6630
7170
2230
2980
3720
4460
5210
5790
6320
6840
2080
2770
3460
4160
4850
5540
6230
6930
2080
2770
3460
4160
4850
5540
6230
6930
2080
2770
3460
4160
4850
5540
6230
6930
2080
2770
3460
4160
4850
5540
6230
6860
2080
2770
3460
4160
4850
5540
6050
6550
1960
2610
3270
3920
4570
5230
5880
6530
1960
2610
3270
3920
4570
5230
5880
6530
1960
2610
3270
3920
4570
5230
5880
6530
1960
2610
3270
3920
4570
5230
5880
6530
1960
2610
3270
3920
4570
5230
5820
6300
1860
2490
3110
3730
4350
4970
5590
6210
1860
2490
3110
3730
4350
4970
5590
6210
1860
2490
3110
3730
4350
4970
5590
6210
1860
2490
3110
3730
4350
4970
5590
6210
1860
2490
3110
3730
4350
4970
5590
6100
1790
2380
2980
3570
4170
4760
5360
5950
1790
2380
2980
3570
4170
4760
5360
5950
1790
2380
2980
3570
4170
4760
5360
5950
1790
2380
2980
3570
4170
4760
5360
5950
1790
2380
2980
3570
4170
4760
5360
5930
1720
2290
2860
3440
4010
4580
5150
5730
1720
2290
2860
3440
4010
4580
5150
5730
1720
2290
2860
3440
4010
4580
5150
5730
1720
2290
2860
3440
4010
4580
5150
5730
1720
2290
2860
3440
4010
4580
5150
5730
1660
2210
2770
3320
3870
4430
4980
5530
1660
2210
2770
3320
3870
4430
4980
5530
1660
2210
2770
3320
3870
4430
4980
5530
1660
2210
2770
3320
3870
4430
4980
5530
1660
2210
2770
3320
3870
4430
4980
5530
1610
2150
2680
3220
3750
4290
4830
5360
1610
2150
2680
3220
3750
4290
4830
5360
1610
2150
2680
3220
3750
4290
4830
5360
1610
2150
2680
3220
3750
4290
4830
5360
1610
2150
2680
3220
3750
4290
4830
5360
1560
2090
2610
3130
3650
4170
4690
5210
1560
2090
2610
3130
3650
4170
4690
5210
1560
2090
2610
3130
3650
4170
4690
5210
1560
2090
2610
3130
3650
4170
4690
5210
1560
2090
2610
3130
3650
4170
4690
5210
1520
2030
2540
3050
3550
4060
4570
5080
1520
2030
2540
3050
3550
4060
4570
5080
1520
2030
2540
3050
3550
4060
4570
5080
1520
2030
2540
3050
3550
4060
4570
5080
1520
2030
2540
3050
3550
4060
4570
5080
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
Back to Menu
Roof Weight: Heavy
Roof Pitch, α: 0° to 25°
GL12 (88mm width) Techlam Roof Lintel Span Tables
Beam Size
(mm)
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
Back to Menu
Wind Zone
(NZS3604)
Low
Medium
High
Very
High
Extra
High
Loaded Width, LW (mm)
1000
1500
2000
2500
3000
3500
4000
4500
5000
5500
6000
2780
3710
4630
5560
6490
7410
8340
9270
2780
3710
4630
5560
6490
7410
8340
9160
2780
3710
4630
5560
6400
7080
7730
8370
2780
3710
4630
5340
6000
6630
7240
7840
2780
3710
4450
5100
5730
6330
6910
7480
2540
3390
4230
5080
5930
6770
7620
8460
2540
3390
4230
5080
5930
6770
7620
8460
2540
3390
4230
5080
5930
6700
7320
7920
2540
3390
4230
5060
5680
6280
6860
7430
2540
3390
4210
4830
5420
6000
6550
7090
2360
3150
3940
4730
5520
6310
7090
7880
2360
3150
3940
4730
5520
6310
7090
7880
2360
3150
3940
4730
5520
6310
7000
7580
2360
3150
3940
4730
5440
6010
6560
7100
2360
3150
3940
4620
5190
5730
6260
6780
2230
2970
3720
4460
5200
5950
6690
7430
2230
2970
3720
4460
5200
5950
6690
7430
2230
2970
3720
4460
5200
5950
6690
7300
2230
2970
3720
4460
5200
5790
6320
6840
2230
2970
3720
4450
5000
5520
6030
6530
2120
2830
3540
4240
4950
5660
6370
7070
2120
2830
3540
4240
4950
5660
6370
7070
2120
2830
3540
4240
4950
5660
6370
7060
2120
2830
3540
4240
4950
5600
6120
6620
2120
2830
3540
4240
4830
5340
5840
6320
2030
2710
3390
4060
4740
5420
6100
6770
2030
2710
3390
4060
4740
5420
6100
6770
2030
2710
3390
4060
4740
5420
6100
6770
2030
2710
3390
4060
4740
5420
5940
6430
2030
2710
3390
4060
4700
5190
5670
6140
1960
2610
3260
3910
4560
5210
5870
6520
1960
2610
3260
3910
4560
5210
5870
6520
1960
2610
3260
3910
4560
5210
5870
6520
1960
2610
3260
3910
4560
5210
5790
6260
1960
2610
3260
3910
4560
5060
5530
5980
1890
2520
3150
3780
4410
5040
5670
6300
1890
2520
3150
3780
4410
5040
5670
6300
1890
2520
3150
3780
4410
5040
5670
6300
1890
2520
3150
3780
4410
5040
5650
6120
1890
2520
3150
3780
4410
4940
5400
5840
1830
2440
3050
3660
4270
4880
5490
6100
1830
2440
3050
3660
4270
4880
5490
6100
1830
2440
3050
3660
4270
4880
5490
6100
1830
2440
3050
3660
4270
4880
5490
5990
1830
2440
3050
3660
4270
4840
5280
5720
1780
2370
2970
3560
4150
4750
5340
5930
1780
2370
2970
3560
4150
4750
5340
5930
1780
2370
2970
3560
4150
4750
5340
5930
1780
2370
2970
3560
4150
4750
5340
5870
1780
2370
2970
3560
4150
4740
5180
5600
1730
2310
2890
3470
4050
4620
5200
5780
1730
2310
2890
3470
4050
4620
5200
5780
1730
2310
2890
3470
4050
4620
5200
5780
1730
2310
2890
3470
4050
4620
5200
5760
1730
2310
2890
3470
4050
4620
5080
5500
© Copyright
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
95
Roof Weight: Heavy
Roof Pitch, α: 25° to 45°
GL12 (88mm width) Techlam Roof Lintel Span Tables
Beam Size
(mm)
96
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
135x88
180x88
225x88
270x88
315x88
360x88
405x88
450x88
© Copyright
Wind Zone
(NZS3604)
Low
Medium
High
Very
High
Extra
High
Loaded Width, LW (mm)
1000
1500
2000
2500
3000
3500
4000
4500
5000
5500
6000
2560
3410
4270
5120
5970
6830
7680
8530
2560
3410
4270
5120
5970
6830
7680
8530
2560
3410
4270
5120
5970
6830
7680
8370
2560
3410
4270
5120
5970
6630
7240
7840
2560
3410
4270
5100
5730
6330
6910
7480
2340
3120
3900
4680
5450
6230
7010
7790
2340
3120
3900
4680
5450
6230
7010
7790
2340
3120
3900
4680
5450
6230
7010
7790
2340
3120
3900
4680
5450
6230
6860
7430
2340
3120
3900
4680
5420
6000
6550
7090
2180
2900
3630
4350
5080
5810
6530
7260
2180
2900
3630
4350
5080
5810
6530
7260
2180
2900
3630
4350
5080
5810
6530
7260
2180
2900
3630
4350
5080
5810
6530
7100
2180
2900
3630
4350
5080
5730
6260
6780
2050
2740
3420
4110
4790
5470
6160
6840
2050
2740
3420
4110
4790
5470
6160
6840
2050
2740
3420
4110
4790
5470
6160
6840
2050
2740
3420
4110
4790
5470
6160
6840
2050
2740
3420
4110
4790
5470
6030
6530
1950
2600
3260
3910
4560
5210
5860
6510
1950
2600
3260
3910
4560
5210
5860
6510
1950
2600
3260
3910
4560
5210
5860
6510
1950
2600
3260
3910
4560
5210
5860
6510
1950
2600
3260
3910
4560
5210
5840
6320
1870
2490
3120
3740
4360
4990
5610
6230
1870
2490
3120
3740
4360
4990
5610
6230
1870
2490
3120
3740
4360
4990
5610
6230
1870
2490
3120
3740
4360
4990
5610
6230
1870
2490
3120
3740
4360
4990
5610
6140
1800
2400
3000
3600
4200
4800
5400
6000
1800
2400
3000
3600
4200
4800
5400
6000
1800
2400
3000
3600
4200
4800
5400
6000
1800
2400
3000
3600
4200
4800
5400
6000
1800
2400
3000
3600
4200
4800
5400
5980
1740
2320
2900
3480
4060
4640
5220
5800
1740
2320
2900
3480
4060
4640
5220
5800
1740
2320
2900
3480
4060
4640
5220
5800
1740
2320
2900
3480
4060
4640
5220
5800
1740
2320
2900
3480
4060
4640
5220
5800
1690
2250
2810
3370
3930
4500
5060
5620
1690
2250
2810
3370
3930
4500
5060
5620
1690
2250
2810
3370
3930
4500
5060
5620
1690
2250
2810
3370
3930
4500
5060
5620
1690
2250
2810
3370
3930
4500
5060
5620
1640
2180
2730
3280
3820
4370
4920
5460
1640
2180
2730
3280
3820
4370
4920
5460
1640
2180
2730
3280
3820
4370
4920
5460
1640
2180
2730
3280
3820
4370
4920
5460
1640
2180
2730
3280
3820
4370
4920
5460
1600
2130
2660
3190
3720
4260
4790
5320
1600
2130
2660
3190
3720
4260
4790
5320
1600
2130
2660
3190
3720
4260
4790
5320
1600
2130
2660
3190
3720
4260
4790
5320
1600
2130
2660
3190
3720
4260
4790
5320
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
Back to Menu
Techlam laminated beams can be
supplied in any size or shape, off
plans or manufactured exactly as
per templates supplied.
97
Back to Menu
© Copyright
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
Li Te Ap
nt c
el hl p e
Sp am n
an F d i
lo x
Ta o
E
bl r
es
98
Figure E. Floor Lintel Loading
© Copyright
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
Back to Menu
Roof Weight: Light
Roof Pitch, α: 0° to 25°
GL8 (88mm width) Techlam Floor Lintel Span Tables
Wind Zone
(NZS3604)
Beam Size
(mm)
Floor Loaded Width, LWfloor
1000 (mm)
Floor Loaded Width, LWfloor
2000 (mm)
Floor Loaded Width, LWfloor
3000 (mm)
Roof Loaded Width, LWroof (mm)
Roof Loaded Width, LWroof (mm)
Roof Loaded Width, LWroof (mm)
1000 2000 3000 4000 5000 6000 1000 2000 3000 4000 5000 6000 1000 2000 3000 4000 5000 6000
1870
1810
1750
1690
1650
1610
1660
1620
1580
1550
1510
1480
1520
1490
1470
1440
1410
1390
180x88
2500
2410
2330
2260
2200
2140
2220
2160
2110
2060
2020
1980
2030
1990
1950
1920
1890
1850
3120
3010
2910
2820
2750
2680
2770
2700
2640
2580
2520
2470
2540
2490
2440
2400
2360
2320
3750
3610
3490
3390
3290
3210
3330
3240
3160
3090
3030
2970
3050
2990
2930
2880
2830
2780
4370
4210
4070
3950
3840
3750
3880
3780
3690
3610
3530
3460
3560
3490
3420
3360
3300
3250
5000
4810
4660
4520
4390
4250
4440
4320
4220
4120
4030
3950
4070
3980
3910
3840
3770
3710
5620
5420
5240
5050
4820
4640
4990
4860
4740
4640
4540
4450
4570
4480
4400
4320
4240
4170
6240
6020
5770
5460
5220
5020
5550
5400
5270
5150
5040
4940
5080
4980
4880
4800
4710
4640
225x88
270x88
315x88
360x88
405x88
Low to Extra High
135x88
450x88
Wind Zone
(NZS3604)
Beam Size
(mm)
Floor Loaded Width, LWfloor
4000 (mm)
Floor Loaded Width, LWfloor
5000 (mm)
Floor Loaded Width, LWfloor
6000 (mm)
Roof Loaded Width, LWroof (mm)
Roof Loaded Width, LWroof (mm)
Roof Loaded Width, LWroof (mm)
1000 2000 3000 4000 5000 6000 1000 2000 3000 4000 5000 6000 1000 2000 3000 4000 5000 6000
1370
1350
1330
1320
1300
1280
1240
1230
1220
1200
1190
1180
1150
1140
1120
1110
1100
1090
180x88
1830
1800
1780
1760
1730
1710
1660
1640
1620
1600
1590
1570
1530
1510
1500
1490
1470
1460
2290
2250
2220
2190
2170
2140
2070
2050
2030
2000
1980
1960
1910
1890
1870
1860
1840
1820
2740
2710
2670
2630
2600
2570
2490
2460
2430
2410
2380
2350
2290
2270
2250
2230
2210
2190
3200
3160
3110
3070
3030
2990
2900
2870
2840
2810
2780
2750
2680
2650
2620
2600
2580
2550
3660
3610
3560
3510
3470
3420
3320
3280
3240
3210
3170
3140
3060
3030
3000
2970
2940
2920
4120
4060
4000
3950
3900
3850
3730
3690
3650
3610
3570
3530
3440
3410
3370
3340
3310
3280
4570
4510
4450
4390
4330
4280
4150
4100
4050
4010
3970
3920
3820
3790
3750
3710
3680
3650
225x88
270x88
315x88
360x88
405x88
Low to Extra High
135x88
450x88
Back to Menu
© Copyright
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
99
Roof Weight: Light
Roof Pitch, α: 25° to 45°
GL8 (88mm width) Techlam Floor Lintel Span Tables
Wind Zone
(NZS3604)
Beam Size
(mm)
Floor Loaded Width, LWfloor
2000 (mm)
Floor Loaded Width, LWfloor
3000 (mm)
Roof Loaded Width, LWroof (mm)
Roof Loaded Width, LWroof (mm)
Roof Loaded Width, LWroof (mm)
1000 2000 3000 4000 5000 6000 1000 2000 3000 4000 5000 6000 1000 2000 3000 4000 5000 6000
1840
1760
1690
1630
1580
1540
1640
1590
1550
1500
1470
1430
1510
1470
1440
1410
1380
1350
180x88
2460
2350
2260
2180
2110
2050
2190
2120
2060
2010
1960
1910
2010
1960
1920
1880
1840
1800
3070
2940
2820
2720
2640
2560
2740
2650
2580
2510
2440
2390
2520
2450
2400
2350
2300
2250
3680
3520
3390
3270
3170
3080
3290
3180
3090
3010
2930
2870
3020
2950
2880
2810
2760
2700
4300
4110
3950
3810
3690
3590
3840
3710
3610
3510
3420
3340
3520
3440
3360
3280
3220
3150
4910
4700
4510
4360
4220
4100
4380
4240
4120
4010
3910
3820
4030
3930
3840
3750
3680
3600
5520
5280
5080
4900
4750
4610
4930
4770
4640
4510
4400
4300
4530
4420
4320
4220
4130
4060
6140
5870
5640
5450
5220
5020
5480
5310
5150
5010
4890
4780
5040
4910
4790
4690
4590
4510
270x88
315x88
360x88
405x88
Low to Extra High
135x88
225x88
100
Floor Loaded Width, LWfloor
1000 (mm)
450x88
Wind Zone
(NZS3604)
Beam Size
(mm)
Floor Loaded Width, LWfloor
4000 (mm)
Floor Loaded Width, LWfloor
5000 (mm)
Floor Loaded Width, LWfloor
6000 (mm)
Roof Loaded Width, LWroof (mm)
Roof Loaded Width, LWroof (mm)
Roof Loaded Width, LWroof (mm)
1000 2000 3000 4000 5000 6000 1000 2000 3000 4000 5000 6000 1000 2000 3000 4000 5000 6000
1360
1340
1320
1290
1270
1250
1240
1220
1200
1190
1170
1150
1140
1130
1110
1100
1090
1080
180x88
1820
1790
1750
1730
1700
1670
1650
1630
1600
1580
1560
1540
1520
1500
1490
1470
1450
1430
2270
2230
2190
2160
2120
2090
2060
2030
2000
1980
1950
1920
1900
1880
1860
1830
1810
1790
2730
2680
2630
2590
2550
2510
2480
2440
2410
2370
2340
2310
2280
2260
2230
2200
2180
2150
3180
3120
3070
3020
2970
2930
2890
2850
2810
2770
2730
2690
2670
2630
2600
2570
2540
2510
3640
3570
3510
3450
3400
3340
3300
3250
3210
3160
3120
3080
3050
3010
2970
2940
2900
2870
4090
4020
3950
3880
3820
3760
3710
3660
3610
3560
3510
3460
3430
3380
3340
3300
3260
3230
4540
4460
4390
4310
4250
4180
4130
4070
4010
3950
3900
3850
3810
3760
3710
3670
3630
3590
225x88
270x88
315x88
360x88
405x88
450x88
© Copyright
Low to Extra High
135x88
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
Back to Menu
Roof Weight: Light
Roof Pitch, α: 0° to 25°
GL10 (88mm width) Techlam Floor Lintel Span Tables
Wind Zone
(NZS3604)
Beam Size
(mm)
Floor Loaded Width, LWfloor
1000 (mm)
Floor Loaded Width, LWfloor
2000 (mm)
Floor Loaded Width, LWfloor
3000 (mm)
Roof Loaded Width, LWroof (mm)
Roof Loaded Width, LWroof (mm)
Roof Loaded Width, LWroof (mm)
1000 2000 3000 4000 5000 6000 1000 2000 3000 4000 5000 6000 1000 2000 3000 4000 5000 6000
2020
1940
1880
1820
1770
1730
1790
1750
1700
1670
1630
1600
1640
1610
1580
1550
1520
1500
180x88
2690
2590
2510
2430
2370
2310
2390
2330
2270
2220
2170
2130
2190
2150
2100
2070
2030
2000
3360
3240
3130
3040
2960
2880
2990
2910
2840
2780
2720
2660
2740
2680
2630
2580
2540
2500
4040
3890
3760
3650
3550
3460
3590
3490
3410
3330
3260
3200
3290
3220
3160
3100
3050
3000
4710
4540
4390
4260
4140
4040
4180
4070
3970
3890
3800
3730
3830
3760
3680
3620
3550
3500
5380
5190
5020
4870
4670
4490
4780
4660
4540
4440
4350
4260
4380
4290
4210
4130
4060
4000
6050
5830
5640
5340
5100
4910
5380
5240
5110
5000
4890
4790
4930
4830
4740
4650
4570
4500
6730
6480
6100
5770
5520
5310
5980
5820
5680
5550
5430
5310
5480
5360
5260
5170
5080
4990
225x88
270x88
315x88
360x88
405x88
Low to Extra High
135x88
450x88
Wind Zone
(NZS3604)
Beam Size
(mm)
Floor Loaded Width, LWfloor
4000 (mm)
Floor Loaded Width, LWfloor
5000 (mm)
Floor Loaded Width, LWfloor
6000 (mm)
Roof Loaded Width, LWroof (mm)
Roof Loaded Width, LWroof (mm)
Roof Loaded Width, LWroof (mm)
1000 2000 3000 4000 5000 6000 1000 2000 3000 4000 5000 6000 1000 2000 3000 4000 5000 6000
1480
1460
1440
1420
1400
1380
1340
1320
1310
1290
1280
1270
1230
1220
1210
1200
1190
1180
180x88
1970
1940
1910
1890
1860
1840
1790
1770
1750
1730
1710
1690
1650
1630
1610
1600
1580
1570
2460
2430
2390
2360
2330
2300
2230
2210
2180
2160
2130
2110
2060
2040
2020
2000
1980
1960
2950
2910
2870
2830
2800
2760
2680
2650
2620
2590
2560
2530
2470
2440
2420
2400
2380
2350
3450
3400
3350
3310
3260
3220
3130
3090
3050
3020
2990
2960
2880
2850
2820
2800
2770
2750
3940
3880
3830
3780
3730
3680
3570
3530
3490
3450
3410
3380
3290
3260
3230
3200
3170
3140
4430
4370
4310
4250
4190
4140
4020
3970
3930
3880
3840
3800
3700
3670
3630
3600
3560
3530
4920
4850
4790
4720
4660
4600
4460
4410
4360
4310
4270
4220
4120
4070
4040
4000
3960
3920
225x88
270x88
315x88
360x88
405x88
Low to Extra High
135x88
450x88
Back to Menu
© Copyright
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
101
Roof Weight: Light
Roof Pitch, α: 25° to 45°
GL10 (88mm width) Techlam Floor Lintel Span Tables
Wind Zone
(NZS3604)
Beam Size
(mm)
Floor Loaded Width, LWfloor
2000 (mm)
Floor Loaded Width, LWfloor
3000 (mm)
Roof Loaded Width, LWroof (mm)
Roof Loaded Width, LWroof (mm)
Roof Loaded Width, LWroof (mm)
1000 2000 3000 4000 5000 6000 1000 2000 3000 4000 5000 6000 1000 2000 3000 4000 5000 6000
1980
1900
1820
1760
1710
1660
1770
1710
1660
1620
1580
1540
1630
1590
1550
1520
1480
1460
180x88
2640
2530
2430
2350
2270
2210
2360
2290
2220
2160
2110
2060
2170
2120
2070
2020
1980
1940
3310
3160
3040
2930
2840
2760
2950
2860
2770
2700
2630
2570
2710
2640
2580
2530
2470
2430
3970
3790
3650
3520
3410
3310
3540
3430
3330
3240
3160
3090
3250
3170
3100
3030
2970
2910
4630
4430
4260
4110
3980
3870
4130
4000
3880
3780
3690
3600
3800
3700
3620
3540
3460
3400
5290
5060
4860
4700
4550
4420
4720
4570
4440
4320
4210
4120
4340
4230
4130
4040
3960
3880
5950
5690
5470
5280
5100
4910
5310
5140
4990
4860
4740
4630
4880
4760
4650
4550
4450
4370
6610
6320
6080
5770
5520
5310
5900
5710
5550
5400
5270
5150
5420
5290
5170
5050
4950
4850
270x88
315x88
360x88
405x88
Low to Extra High
135x88
225x88
102
Floor Loaded Width, LWfloor
1000 (mm)
450x88
Wind Zone
(NZS3604)
Beam Size
(mm)
Floor Loaded Width, LWfloor
4000 (mm)
Floor Loaded Width, LWfloor
5000 (mm)
Floor Loaded Width, LWfloor
6000 (mm)
Roof Loaded Width, LWroof (mm)
Roof Loaded Width, LWroof (mm)
Roof Loaded Width, LWroof (mm)
1000 2000 3000 4000 5000 6000 1000 2000 3000 4000 5000 6000 1000 2000 3000 4000 5000 6000
1470
1440
1420
1390
1370
1350
1330
1310
1290
1280
1260
1240
1230
1210
1200
1180
1170
1160
180x88
1960
1920
1890
1860
1830
1800
1780
1750
1730
1700
1680
1660
1640
1620
1600
1580
1560
1540
2440
2400
2360
2320
2280
2250
2220
2190
2160
2130
2100
2070
2050
2020
2000
1970
1950
1930
2930
2880
2830
2790
2740
2700
2660
2630
2590
2550
2520
2480
2460
2430
2400
2370
2340
2310
3420
3360
3300
3250
3200
3150
3110
3060
3020
2980
2940
2900
2870
2830
2800
2760
2730
2700
3910
3840
3780
3710
3660
3600
3550
3500
3450
3400
3360
3310
3280
3240
3200
3160
3120
3090
4400
4320
4250
4180
4110
4050
4000
3940
3880
3830
3780
3730
3690
3640
3600
3550
3510
3470
4890
4800
4720
4640
4570
4500
4440
4380
4310
4250
4200
4140
4100
4050
4000
3950
3900
3860
225x88
270x88
315x88
360x88
405x88
450x88
© Copyright
Low to Extra High
135x88
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
Back to Menu
Roof Weight: Light
Roof Pitch, α: 0° to 25°
GL12 (88mm width) Techlam Floor Lintel Span Tables
Wind Zone
(NZS3604)
Beam Size
(mm)
Floor Loaded Width, LWfloor
1000 (mm)
Floor Loaded Width, LWfloor
2000 (mm)
Floor Loaded Width, LWfloor
3000 (mm)
Roof Loaded Width, LWroof (mm)
Roof Loaded Width, LWroof (mm)
Roof Loaded Width, LWroof (mm)
1000 2000 3000 4000 5000 6000 1000 2000 3000 4000 5000 6000 1000 2000 3000 4000 5000 6000
2110
2040
1970
1910
1860
1810
1880
1830
1780
1740
1710
1670
1720
1690
1650
1620
1600
1570
180x88
2820
2720
2630
2550
2480
2420
2500
2440
2380
2330
2280
2230
2290
2250
2210
2170
2130
2090
3520
3400
3280
3190
3100
3020
3130
3050
2970
2910
2850
2790
2870
2810
2760
2710
2660
2620
4230
4070
3940
3820
3720
3620
3760
3660
3570
3490
3420
3350
3440
3370
3310
3250
3190
3140
4930
4750
4600
4460
4340
4210
4380
4270
4160
4070
3980
3910
4020
3930
3860
3790
3720
3660
5640
5430
5250
5060
4840
4650
5010
4880
4760
4650
4550
4460
4590
4500
4410
4330
4260
4190
6340
6110
5840
5530
5280
5080
5630
5490
5350
5230
5120
5020
5160
5060
4960
4870
4790
4710
7050
6780
6320
5980
5720
5500
6260
6100
5950
5810
5690
5500
5740
5620
5510
5410
5320
5230
225x88
270x88
315x88
360x88
405x88
Low to Extra High
135x88
450x88
Wind Zone
(NZS3604)
Beam Size
(mm)
Floor Loaded Width, LWfloor
4000 (mm)
Floor Loaded Width, LWfloor
5000 (mm)
Floor Loaded Width, LWfloor
6000 (mm)
Roof Loaded Width, LWroof (mm)
Roof Loaded Width, LWroof (mm)
Roof Loaded Width, LWroof (mm)
1000 2000 3000 4000 5000 6000 1000 2000 3000 4000 5000 6000 1000 2000 3000 4000 5000 6000
1570
1550
1530
1510
1490
1470
1430
1410
1400
1380
1360
1350
1320
1300
1290
1280
1270
1250
180x88
2100
2070
2040
2010
1990
1960
1900
1880
1860
1840
1820
1800
1750
1740
1720
1700
1690
1670
2620
2590
2550
2520
2480
2450
2380
2350
2330
2300
2270
2250
2190
2170
2150
2130
2110
2090
3150
3100
3060
3020
2980
2940
2860
2820
2790
2760
2730
2700
2630
2610
2580
2560
2530
2510
3670
3620
3570
3520
3480
3430
3330
3290
3260
3220
3180
3150
3070
3040
3010
2980
2950
2930
4200
4140
4080
4030
3970
3920
3810
3760
3720
3680
3640
3600
3510
3470
3440
3410
3380
3350
4720
4660
4590
4530
4470
4410
4280
4230
4190
4140
4090
4050
3950
3910
3870
3830
3800
3760
5250
5170
5100
5030
4970
4910
4760
4700
4650
4600
4550
4500
4390
4340
4300
4260
4220
4180
225x88
270x88
315x88
360x88
405x88
Low to Extra High
135x88
450x88
Back to Menu
© Copyright
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
103
Roof Weight: Light
Roof Pitch, α: 25° to 45°
GL12 (88mm width) Techlam Floor Lintel Span Tables
Wind Zone
(NZS3604)
Beam Size
(mm)
Floor Loaded Width, LWfloor
2000 (mm)
Floor Loaded Width, LWfloor
3000 (mm)
Roof Loaded Width, LWroof (mm)
Roof Loaded Width, LWroof (mm)
Roof Loaded Width, LWroof (mm)
1000 2000 3000 4000 5000 6000 1000 2000 3000 4000 5000 6000 1000 2000 3000 4000 5000 6000
2080
1990
1910
1840
1790
1740
1860
1800
1740
1700
1660
1620
1700
1660
1620
1590
1560
1530
180x88
2770
2650
2550
2460
2380
2310
2470
2390
2330
2260
2210
2160
2270
2220
2160
2120
2070
2030
3460
3310
3180
3070
2980
2890
3090
2990
2910
2830
2760
2700
2840
2770
2710
2650
2590
2540
4160
3970
3820
3690
3570
3470
3710
3590
3490
3390
3310
3230
3410
3320
3250
3180
3110
3050
4850
4640
4460
4300
4170
4050
4330
4190
4070
3960
3860
3770
3980
3880
3790
3710
3630
3560
5540
5300
5100
4920
4760
4630
4950
4790
4650
4530
4410
4310
4550
4430
4330
4230
4150
4070
6230
5960
5730
5530
5280
5080
5570
5390
5230
5090
4970
4850
5110
4990
4870
4760
4670
4580
6930
6620
6320
5980
5720
5500
6180
5990
5810
5660
5520
5390
5680
5540
5410
5290
5190
5090
270x88
315x88
360x88
405x88
Low to Extra High
135x88
225x88
104
Floor Loaded Width, LWfloor
1000 (mm)
450x88
Wind Zone
(NZS3604)
Beam Size
(mm)
Floor Loaded Width, LWfloor
4000 (mm)
Floor Loaded Width, LWfloor
5000 (mm)
Floor Loaded Width, LWfloor
6000 (mm)
Roof Loaded Width, LWroof (mm)
Roof Loaded Width, LWroof (mm)
Roof Loaded Width, LWroof (mm)
1000 2000 3000 4000 5000 6000 1000 2000 3000 4000 5000 6000 1000 2000 3000 4000 5000 6000
1560
1540
1510
1480
1460
1440
1420
1400
1380
1360
1340
1320
1310
1290
1280
1260
1250
1230
180x88
2090
2050
2010
1980
1950
1920
1890
1870
1840
1810
1790
1770
1750
1730
1700
1680
1660
1650
2610
2560
2520
2470
2440
2400
2370
2330
2300
2270
2240
2210
2180
2160
2130
2100
2080
2060
3130
3070
3020
2970
2920
2880
2840
2800
2760
2720
2680
2650
2620
2590
2560
2530
2500
2470
3650
3580
3520
3460
3410
3360
3310
3270
3220
3170
3130
3090
3060
3020
2980
2950
2910
2880
4170
4100
4030
3960
3900
3840
3790
3730
3680
3630
3580
3530
3490
3450
3410
3370
3330
3290
4690
4610
4530
4450
4380
4320
4260
4200
4140
4080
4030
3970
3930
3880
3830
3790
3740
3700
5210
5120
5030
4950
4870
4790
4730
4660
4600
4530
4470
4410
4370
4310
4260
4210
4160
4110
225x88
270x88
315x88
360x88
405x88
450x88
© Copyright
Low to Extra High
135x88
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
Back to Menu
Roof Weight: Heavy
Roof Pitch, α: 0° to 25°
GL8 (88mm width) Techlam Floor Lintel Span Tables
Wind Zone
(NZS3604)
Beam Size
(mm)
Floor Loaded Width, LWfloor
1000 (mm)
Floor Loaded Width, LWfloor
2000 (mm)
Floor Loaded Width, LWfloor
3000 (mm)
Roof Loaded Width, LWroof (mm)
Roof Loaded Width, LWroof (mm)
Roof Loaded Width, LWroof (mm)
1000 2000 3000 4000 5000 6000 1000 2000 3000 4000 5000 6000 1000 2000 3000 4000 5000 6000
1740
1630
1540
1470
1410
1360
1580
1500
1430
1380
1330
1290
1460
1400
1350
1310
1270
1240
180x88
2320
210
2050
1960
1880
1810
2100
2000
1910
1840
1780
1720
1950
1870
1800
1750
1690
1650
2900
2710
2570
2450
2350
2260
2630
2500
2390
2300
2220
2150
2440
2340
2250
2180
2120
2060
3480
3250
3080
2940
2820
2720
3150
3000
2870
2760
2670
2580
2920
2810
2710
2620
2540
2470
4060
3800
3590
3430
3290
3170
3680
3500
3350
3220
3110
3010
3410
3270
3160
3050
2960
2880
4640
4340
4110
3920
3760
3620
4200
4000
3830
3680
3550
3440
3900
3740
3610
3490
3390
3300
5220
4880
4620
4410
4230
4070
4730
4500
4300
4140
4000
3870
4390
4210
4060
3930
3810
3710
5800
5420
5130
4900
4700
4530
5250
5000
4780
4600
4440
4300
4870
4680
4510
4360
4240
4120
225x88
270x88
315x88
360x88
405x88
Low to Extra High
135x88
450x88
Wind Zone
(NZS3604)
Beam Size
(mm)
Floor Loaded Width, LWfloor
4000 (mm)
Floor Loaded Width, LWfloor
5000 (mm)
Floor Loaded Width, LWfloor
6000 (mm)
Roof Loaded Width, LWroof (mm)
Roof Loaded Width, LWroof (mm)
Roof Loaded Width, LWroof (mm)
1000 2000 3000 4000 5000 6000 1000 2000 3000 4000 5000 6000 1000 2000 3000 4000 5000 6000
1330
1290
1250
1220
1190
1160
1210
1180
1160
1130
1100
1080
1120
1100
1080
1050
1030
1020
180x88
1780
1720
1670
1630
1590
1550
1620
1580
1540
1500
1470
1440
1500
1470
1430
1410
1380
1350
2220
2150
2090
2040
1980
1930
2020
1970
1930
1880
1840
1800
1870
1830
1790
1760
1720
1690
2660
2580
2510
2440
2380
2320
2430
2370
2310
2260
2210
2160
2250
2200
2150
2110
2070
2030
3110
3010
2930
2850
2780
2710
2830
2760
2700
2630
2580
2520
2620
2560
2510
2460
2410
2370
3550
3440
3350
3260
3170
3100
3240
3160
3080
3010
2940
2880
3000
2930
2870
2810
2760
2710
4000
3870
3760
3660
3570
3480
3640
3550
3470
3390
3310
3240
3370
3300
3230
3160
3100
3050
4440
4310
4180
4070
3970
3870
4050
3950
3850
3760
3680
3600
3750
3660
3590
3520
3450
3380
225x88
270x88
315x88
360x88
405x88
Low to Extra High
135x88
450x88
Back to Menu
© Copyright
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
105
Roof Weight: Heavy
Roof Pitch, α: 25° to 45°
GL8 (88mm width) Techlam Floor Lintel Span Tables
Wind Zone
(NZS3604)
Beam Size
(mm)
Floor Loaded Width, LWfloor
2000 (mm)
Floor Loaded Width, LWfloor
3000 (mm)
Roof Loaded Width, LWroof (mm)
Roof Loaded Width, LWroof (mm)
Roof Loaded Width, LWroof (mm)
1000 2000 3000 4000 5000 6000 1000 2000 3000 4000 5000 6000 1000 2000 3000 4000 5000 6000
1680
1560
1470
1390
1330
1280
1540
1450
1380
1320
1270
1230
1430
1370
1310
1260
1220
1180
180x88
2250
2080
1960
1860
1780
1710
2050
1930
1840
1760
1690
1640
1910
1820
1740
1680
1620
1570
2810
2600
2450
2320
2220
2130
2570
2420
2300
2200
2120
2040
2390
2280
2180
2100
2030
1970
3370
3120
2940
2790
2660
2560
3080
2900
2760
2640
2540
2450
2870
2730
2620
2520
2440
2360
3930
3640
3420
3250
3110
2990
3590
3380
3220
3080
2960
2860
3350
3190
3050
2940
2840
2760
4490
4160
3910
3710
3550
3410
4110
3870
3680
3520
3390
3270
3820
3640
3490
3360
3250
3150
5050
4680
4400
4180
4000
3840
4620
4350
4140
3960
3810
3680
4300
4100
3930
3780
3650
3540
5620
5200
4890
4640
4440
4270
5130
4840
4600
4400
4230
4090
4780
4550
4360
4200
4060
3940
270x88
315x88
360x88
405x88
Low to Extra High
135x88
225x88
106
Floor Loaded Width, LWfloor
1000 (mm)
450x88
Wind Zone
(NZS3604)
Beam Size
(mm)
Floor Loaded Width, LWfloor
4000 (mm)
Floor Loaded Width, LWfloor
5000 (mm)
Floor Loaded Width, LWfloor
6000 (mm)
Roof Loaded Width, LWroof (mm)
Roof Loaded Width, LWroof (mm)
Roof Loaded Width, LWroof (mm)
1000 2000 3000 4000 5000 6000 1000 2000 3000 4000 5000 6000 1000 2000 3000 4000 5000 6000
1310
1260
1220
1180
1150
1110
1200
1160
1130
1100
1070
1040
1110
1080
1050
1030
1000
982
180x88
1750
1690
1630
1570
1530
1480
1600
1550
1500
1460
1420
1390
1480
1440
1410
1370
1340
1310
2190
2110
2030
1970
1910
1850
2000
1940
1880
1830
1780
1740
1850
1800
1760
1710
1670
1640
2630
2530
2440
2360
2290
2220
2400
2330
2260
2190
2140
2080
2220
2160
2110
2060
2010
1960
3060
2950
2850
2760
2670
2600
2800
2710
2630
2560
2490
2430
2600
2530
2460
2400
2340
2290
3500
3370
3250
3150
3050
2970
3200
3100
3010
2930
2850
2780
2970
2890
2810
2740
2680
2620
3940
3790
3660
3540
3440
3340
3600
3490
3390
3290
3200
3120
3340
3250
3160
3090
3010
2950
4380
4210
4070
3940
3820
3710
4000
3880
3760
3660
3560
3470
3710
3610
3510
3430
3350
3270
225x88
270x88
315x88
360x88
405x88
450x88
© Copyright
Low to Extra High
135x88
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
Back to Menu
Roof Weight: Heavy
Roof Pitch, α: 0° to 25°
GL10 (88mm width) Techlam Floor Lintel Span Tables
Wind Zone
(NZS3604)
Beam Size
(mm)
Floor Loaded Width, LWfloor
1000 (mm)
Floor Loaded Width, LWfloor
2000 (mm)
Floor Loaded Width, LWfloor
3000 (mm)
Roof Loaded Width, LWroof (mm)
Roof Loaded Width, LWroof (mm)
Roof Loaded Width, LWroof (mm)
1000 2000 3000 4000 5000 6000 1000 2000 3000 4000 5000 6000 1000 2000 3000 4000 5000 6000
1870
1750
1660
1580
1520
1460
1700
1610
1550
1490
1440
1390
1570
1510
1460
1410
1370
1330
180x88
2500
2340
2210
2110
2020
1950
2260
2150
2060
1980
1910
1850
2100
2020
1940
1880
1830
1780
3120
2920
2760
2640
2530
2440
2830
2690
2580
2480
2390
2320
2620
2520
2430
2350
2280
2220
3750
3510
3320
3160
3040
2930
3400
3230
3090
2970
2870
2780
3150
3020
2910
2820
2740
2660
4370
4090
3870
3690
3540
3410
3960
3770
3610
3470
3350
3250
3670
3530
3400
3290
3190
3110
4990
4670
4420
4220
4050
3900
4530
4310
4120
3960
3830
3710
4200
4030
3890
3760
3650
3550
5620
5260
4980
4750
4550
4390
5090
4840
4640
4460
4310
4170
4720
4530
4370
4230
4110
4000
6240
5840
5530
5270
5060
4880
5660
5380
5150
4950
4790
4640
5250
5040
4860
4700
4560
4440
225x88
270x88
315x88
360x88
405x88
Low to Extra High
135x88
450x88
Wind Zone
(NZS3604)
Beam Size
(mm)
Floor Loaded Width, LWfloor
4000 (mm)
Floor Loaded Width, LWfloor
5000 (mm)
Floor Loaded Width, LWfloor
6000 (mm)
Roof Loaded Width, LWroof (mm)
Roof Loaded Width, LWroof (mm)
Roof Loaded Width, LWroof (mm)
1000 2000 3000 4000 5000 6000 1000 2000 3000 4000 5000 6000 1000 2000 3000 4000 5000 6000
1430
1390
1350
1310
1280
1250
1310
1270
1240
1210
1190
1160
1210
1180
180x88
1910
1850
1800
1750
1710
1670
1740
1700
1660
1620
1580
1550
1610
1580
2390
2320
2250
2190
2130
2080
2180
2120
2070
2020
1980
1940
2010
2870
2780
2700
2630
2560
2500
2610
2550
2490
2430
2380
2330
3340
3240
3150
3070
2990
2910
3050
2970
2900
2830
2770
3820
3710
3600
3500
3410
3330
3480
3400
3320
3240
4300
4170
4050
3940
3840
3750
3920
3820
3730
4780
4630
4500
4380
4270
4160
4360
4250
4140
225x88
270x88
315x88
360x88
405x88
Low to Extra High
135x88
450x88
Back to Menu
1130
1110
1090
1540
1510
1480
1460
1970
1930
1890
1850
1820
2420
2370
2320
2270
2230
2180
2710
2820
2760
2700
2650
2600
2550
3170
3100
3220
3150
3090
3030
2970
2910
3640
3560
3490
3630
3550
3470
3400
3340
3280
4050
3960
3880
4030
3940
3860
3780
3710
3640
© Copyright
1160
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
107
Roof Weight: Heavy
Roof Pitch, α: 25° to 45°
GL10 (88mm width) Techlam Floor Lintel Span Tables
Wind Zone
(NZS3604)
Beam Size
(mm)
Floor Loaded Width, LWfloor
2000 (mm)
Floor Loaded Width, LWfloor
3000 (mm)
Roof Loaded Width, LWroof (mm)
Roof Loaded Width, LWroof (mm)
Roof Loaded Width, LWroof (mm)
1000 2000 3000 4000 5000 6000 1000 2000 3000 4000 5000 6000 1000 2000 3000 4000 5000 6000
1810
1680
1580
1500
1430
1380
1660
1560
1490
1420
1370
1320
1540
1470
1410
1360
1310
1270
180x88
2420
2240
2110
2000
1910
1840
2210
2080
1980
1900
1820
1760
2060
1960
1880
1810
1750
1700
3020
2800
2640
2500
2390
2300
2760
2600
2480
2370
2280
2200
2570
2450
2350
2260
2190
2120
3630
3360
3160
3000
2870
2760
3320
3130
2970
2840
2740
2640
3090
2940
2820
2710
2620
2540
4230
3920
3690
3500
3350
3220
3870
3650
3470
3320
3190
3080
3600
3430
3290
3170
3060
2970
4840
4490
4220
4000
3830
3680
4420
4170
3960
3790
3650
3520
4120
3920
3760
3620
3500
3390
5440
5050
4740
4500
4300
4140
4980
4690
4460
4270
4100
3960
4630
4410
4230
4070
3940
3820
6050
5610
5270
5000
4780
4600
5530
5210
4950
4740
4560
4400
5150
4900
4700
4520
4370
4240
270x88
315x88
360x88
405x88
Low to Extra High
135x88
225x88
108
Floor Loaded Width, LWfloor
1000 (mm)
450x88
Wind Zone
(NZS3604)
Beam Size
(mm)
Floor Loaded Width, LWfloor
4000 (mm)
Floor Loaded Width, LWfloor
5000 (mm)
Floor Loaded Width, LWfloor
6000 (mm)
Roof Loaded Width, LWroof (mm)
Roof Loaded Width, LWroof (mm)
Roof Loaded Width, LWroof (mm)
1000 2000 3000 4000 5000 6000 1000 2000 3000 4000 5000 6000 1000 2000 3000 4000 5000 6000
1410
1360
1310
1270
1230
1200
1290
1250
1210
1180
1150
1120
1200
1160
1130
1110
1080
1060
180x88
1880
1810
1750
1690
1640
1600
1720
1670
1620
1570
1530
1490
1600
1550
1510
1480
1440
1410
2360
2270
2190
2120
2050
1990
2150
2090
2020
1970
1920
1870
1990
1940
1890
1840
1800
1760
2830
2720
2630
2540
2460
2390
2580
2500
2430
2360
2300
2240
2390
2330
2270
2210
2160
2110
3300
3170
3060
2970
2880
2790
3010
2920
2830
2750
2680
2610
2790
2720
2650
2580
2520
2470
3770
3630
3500
3390
3290
3190
3440
3340
3240
3150
3060
2990
3190
3110
3030
2950
2880
2820
4240
4080
3940
3810
3700
3590
3870
3750
3640
3540
3450
3360
3590
3490
3400
3320
3240
3170
4710
4540
4380
4240
4110
3990
4310
4170
4050
3930
3830
3730
3990
3880
3780
3690
3600
3520
225x88
270x88
315x88
360x88
405x88
450x88
© Copyright
Low to Extra High
135x88
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
Back to Menu
Roof Weight: Heavy
Roof Pitch, α: 0° to 25°
GL12 (88mm width) Techlam Floor Lintel Span Tables
Wind Zone
(NZS3604)
Beam Size
(mm)
Floor Loaded Width, LWfloor
1000 (mm)
Floor Loaded Width, LWfloor
2000 (mm)
Floor Loaded Width, LWfloor
3000 (mm)
Roof Loaded Width, LWroof (mm)
Roof Loaded Width, LWroof (mm)
Roof Loaded Width, LWroof (mm)
1000 2000 3000 4000 5000 6000 1000 2000 3000 4000 5000 6000 1000 2000 3000 4000 5000 6000
1960
1840
1740
1660
1590
1530
1780
1690
1620
1560
1500
1460
1650
1580
1530
1480
1430
1400
180x88
2620
2450
2320
2210
2120
2040
2370
2260
2160
2080
2010
1940
2200
2110
2040
1970
1910
1860
3270
3060
2900
2760
2650
2550
2970
2820
2700
2600
2510
2430
2750
2640
2540
2460
2390
2330
3920
3670
3480
3310
3180
3070
3560
3380
3240
3110
3010
2920
3300
3170
3050
2960
2870
2790
4580
4290
4050
3870
3710
3580
4150
3950
3780
3630
3510
3400
3850
3690
3560
3450
3350
3260
5230
4900
4630
4420
4240
4090
4740
4510
4320
4150
4010
3890
4400
4220
4070
3940
3820
3720
5890
5510
5210
4970
4770
4600
5340
5070
4860
4670
4510
4370
4950
4750
4580
4430
4300
4190
6540
6120
5790
5520
5300
5110
5930
5640
5400
5190
5010
4860
5500
5280
5090
4930
4780
4650
225x88
270x88
315x88
360x88
405x88
Low to Extra High
135x88
450x88
Wind Zone
(NZS3604)
Beam Size
(mm)
Floor Loaded Width, LWfloor
4000 (mm)
Floor Loaded Width, LWfloor
5000 (mm)
Floor Loaded Width, LWfloor
6000 (mm)
Roof Loaded Width, LWroof (mm)
Roof Loaded Width, LWroof (mm)
Roof Loaded Width, LWroof (mm)
1000 2000 3000 4000 5000 6000 1000 2000 3000 4000 5000 6000 1000 2000 3000 4000 5000 6000
1530
1480
1440
1400
1360
1330
1390
1360
1330
1290
1270
1240
1290
1260
1230
1210
1190
1160
180x88
2040
1980
1920
1870
1820
1780
1860
1810
1770
1730
1690
1650
1720
1680
1650
1610
1580
1550
2550
2470
2400
2330
2270
2220
2320
2260
2210
2160
2110
2070
2150
2100
2060
2020
1980
1940
3060
2960
2880
2800
2730
2660
2790
2720
2650
2590
2530
2480
2580
2520
2470
2420
2370
2330
3560
3460
3360
3270
3180
3110
3250
3170
3090
3020
2950
2890
3010
2940
2880
2820
2770
2720
4070
3950
3840
3740
3640
3550
3720
3620
3530
3450
3380
3310
3440
3360
3290
3230
3160
3110
4580
4440
4320
4200
4090
4000
4180
4070
3980
3880
3800
3720
3870
3780
3700
3630
3560
3490
5090
4940
4800
4670
4550
4440
4640
4530
4420
4320
4220
4130
4300
4200
4110
4030
3950
3880
225x88
270x88
315x88
360x88
405x88
Low to Extra High
135x88
450x88
Back to Menu
© Copyright
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
109
Roof Weight: Heavy
Roof Pitch, α: 25° to 45°
GL12 (88mm width) Techlam Floor Lintel Span Tables
Wind Zone
(NZS3604)
Beam Size
(mm)
Floor Loaded Width, LWfloor
2000 (mm)
Floor Loaded Width, LWfloor
3000 (mm)
Roof Loaded Width, LWroof (mm)
Roof Loaded Width, LWroof (mm)
Roof Loaded Width, LWroof (mm)
1000 2000 3000 4000 5000 6000 1000 2000 3000 4000 5000 6000 1000 2000 3000 4000 5000 6000
1900
1760
1660
1570
1500
1440
1740
1640
1560
1490
1430
1380
1620
1540
1480
1420
1370
1330
180x88
2540
2350
2210
2100
2000
1930
2320
2180
2080
1990
1910
1850
2160
2060
1970
1900
1830
1780
3170
2940
2760
2620
2500
2410
2900
2730
2590
2480
2390
2310
2700
2570
2460
2370
2290
2220
3800
3520
3310
3140
3010
2890
3470
3270
3110
2980
2870
2770
3240
3080
2950
2840
2750
2670
4440
4110
3860
3670
3510
3370
4050
3820
3630
3480
3340
3230
3780
3600
3450
3320
3210
3110
5070
4700
4420
4190
4010
3850
4630
4370
4150
3970
3820
3690
4320
4110
3940
3790
3670
3550
5700
5290
4970
4720
4510
4330
5210
4910
4670
4470
4300
4150
4860
4620
4430
4270
4120
4000
6340
5870
5520
5240
5010
4810
5790
5460
5190
4970
4780
4610
5400
5140
4920
4740
4580
4440
270x88
315x88
360x88
405x88
Low to Extra High
135x88
225x88
110
Floor Loaded Width, LWfloor
1000 (mm)
450x88
Wind Zone
(NZS3604)
Beam Size
(mm)
Floor Loaded Width, LWfloor
4000 (mm)
Floor Loaded Width, LWfloor
5000 (mm)
Floor Loaded Width, LWfloor
6000 (mm)
Roof Loaded Width, LWroof (mm)
Roof Loaded Width, LWroof (mm)
Roof Loaded Width, LWroof (mm)
1000 2000 3000 4000 5000 6000 1000 2000 3000 4000 5000 6000 1000 2000 3000 4000 5000 6000
1510
1450
1400
1350
1310
1280
1380
1330
1290
1260
1230
1190
1280
1240
180x88
2010
1930
1870
1810
1750
1700
1840
1780
1730
1680
1630
1590
1700
1660
2510
2420
2330
2260
2190
2130
2290
2220
2160
2100
2040
1990
2130
3010
2900
2800
2710
2630
2550
2750
2670
2590
2520
2450
2390
3520
3380
3270
3160
3070
2980
3210
3110
3020
2940
2860
4020
3870
3730
3610
3500
3400
3670
3560
3450
3360
4520
4350
4200
4060
3940
3830
4130
4000
3880
5020
4830
4670
4520
4380
4250
4590
4450
4310
225x88
270x88
315x88
360x88
405x88
450x88
© Copyright
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135x88
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
1210
1180
1150
1130
1610
1570
1540
1500
2070
2020
1970
1920
1880
2550
2480
2420
2360
2300
2250
2790
2980
2900
2820
2750
2690
2630
3270
3180
3400
3310
3230
3150
3070
3000
3770
3680
3580
3830
3720
3630
3540
3460
3380
4190
4080
3980
4250
4140
4030
3930
3840
3760
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Glulam is often chosen over steel or
concrete for its appearance, and is
often credited with creating a warm and
comfortable feel to a building. There are
many different species and treatments
available all with their own character that
can be tailored to suit requirements.
111
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© Copyright
of Techlam. Glulam Beam Span Tables, Revision 3, February 2015
0800 832 452 // [email protected] // techlam.co.nz

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