Live load is weight of furniture wind snow and more.
Max span for 2x6 roof rafter.
An spf roof at the same spacing and lumber size will span 11.
These numbers are for roofs supporting light loads of 20 pounds for square foot.
Span calculator for wood joists and rafters also available for the android os.
1 psf lb f ft 2 47 88 n m 2.
2 are indicated below.
Also available for the android os.
Can span up to 13 4.
Dead load weight of structure and fixed loads 15 lbs ft 2.
1 grade southern pine lumber on a roof with a 3 12 slope or less with a maximum live load of 20 pounds per square foot and a dead load of 15 psf.
Douglas fir maximum horizontal roof rafter span for lumber grade selected structural and no.
Surveyors and structural engineers utilise data from tables below to help calculate the correct size strength and centres of roof timbers for the required spans and loadings.
An syp 2 6 rafter at 24 o c.
That means it can span a total length of over 26 for a gable roof.
Span tables for rafters to bs 5268 7 5 imposed loads of 0 75 kn m snow load are applicable to most areas where the altitude does not exceed 100 metres refer to bs 6399 3 imposed loads of 1 kn m snow load are applicable to most areas where the altitude exceeds 100 metres but does not exceed 200 metres but excluding parts of scotland pennines north east england refer to bs 6399 3.
A 2 6 rafter can span 14 feet 8 inches when spaced 16 inches apart with no.
1 ft 0 3048 m.