1. No category

SAFE SPANS TABLES for SA PINE
SANS 10082:2007 Edition 4
BEARERS: For standard timber buildings and decks bearers are normally 76x228mm supported every 2.4m.
Floor JOISTS Safe spans for Stress Grade 5 (S5) pine
Domestic use
Commercial use
Spacing >
400 mm
450 mm
600 mm
400 mm
450 mm
600 mm
38 x 114 mm
1.40 m
1.40 m
1.40 m
0.40 m
0.40 m
0.40 m
38 x 152 mm
2.45 m
2.45 m
2.45 m
0.75 m
0.75 m
0.75 m
38 x 228 mm
4.85 m
4.70 m
4.15 m
1.67 m
1.65 m
1.65 m
50 x 152 mm
3.25 m
3.25 m
3.10 m
1.00 m
1.00 m
1.00 m
50 x 228 mm
5.35 m
5.20 m
4.65 m
2.20 m
2.20 m
2.20 m
6.15 m
5.90 m
5.35 m
3.35 m
3.35 m
3.35 m
76 x 228 mm
Live load
Dead load
Point load
Defelction
1.5 kN/m2
0.125 kN/m2
1.5 kN
1/300th of span
2.5 kN/m2
0.125 kN/m2
5 kN
1/300th of span
450 mm is the
standard spacing for
22 mm flooring and decking
600 mm is the
standard spacing for
32 mm flooring and decking
Floor JOISTS Safe spans for Grade 8 Laminated beams
Timber properties: Avg density 560kg/m3, max working stress fc 8mPa, modulus of elasticity E 9000 mpa
Domestic use
Commercial use
Spacing >
400 mm
450 mm
600 mm
400 mm
450 mm
600 mm
46 x 231 mm
4.80 m
4.65 m
4.05 m
2.05 m
2.05 m
2.05 m
70 x 231 mm
5.60 m
5.35 m
4.90 m
3.20 m
3.20 m
3.20 m
70 x 297 mm
7.20 m
6.90 m
6.30 m
5.35 m
5.35 m
5.35 m
8.75 m
8.45 m
7.65 m
7.40 m
7.20 m
6.55 m
46 x 297 mm
70 x 363 mm
Live load
Dead load
Point load
Defelction
1.5 kN/m2
0.125 kN/m2
1.5 kN
1/300th of span
2.5 kN/m2
0.125 kN/m2
5 kN
1/300th of span
Roof RAFTERS SABS 0400-1990 maximum spans
Corrugated steel or asbestos cement
Spacing >
600 mm
760 mm
1050 mm
1400 mm
38 x 114 mm
2.60 m
2.50 m
2.20 m
2.00 m
38 x 152 mm
3.50 m
3.30 m
3.00 m
38 x 228 mm
5.30 m
5.00 m
50 x 152 mm
3.90 m
3.60 m
50 x 228 mm
5.80 m
5.40 m
Concrete/clay tiles and Thatch
Spacing >
600 mm
760 mm
38 x 114 mm
1.80 m
1.60 m
2.70 m
38 x 152 mm
2.40 m
2.20 m
4.50 m
4.00 m
38 x 228 mm
3.60 m
3.30 m
3.30 m
2.90 m
50 x 152 mm
2.60 m
2.40 m
4.90 m
4.40 m
50 x 228 mm
3.90 m
3.60 m
6.50 m
6.20 m
5.60 m
5.00 m
NOTE: 1050mm is the standard span for 50x76mm purlins
76 x 228 mm
4.50 m
4.20 m
76 x 228 mm
These tables are to be used as a guide only and are supplied for information purposes only.
An engineers drawing should be used for all construction work. Somerset Timbers will accept no liability for the use of these tables.