2x6 Roof Rafter Span

Anything beyond that you are looking at using 2x6s for most sheds.

2x6 roof rafter span.

Can span up to 13 4. Douglas fir maximum horizontal roof rafter span for lumber grade selected structural and no. Maximum rafter spans for a patio roof in areas with mild climates patio roofs are generally designed for loads of 30 psf pounds per square foot. Live load is weight of furniture wind snow and more.

So this table could accommodate a house with a total rafter span or house width of 32 feet. Dead load weight of structure and fixed loads 15 lbs ft 2. To size joists and rafters use the maximum span tables for southern yellow pine. This is based upon the span of the rafter horizontal span not total rafter length live and dead loads.

An spf roof at the same spacing and lumber size will span 11. 2 are indicated below. More roof calculators roof truss calculator how to cut rafters. For heavy roofs or in areas with substantial snowfall or winds call your local building department for code requirements.

This rafter span calculator is species specific for douglas fir hemlock etc. If you look at the rafter span chart you ll notice that 2x4s can be used for rafters on spans up to 11. Also available for the android os. 1 ft 0 3048 m.

Span calculator for wood joists and rafters also available for the android os. The spans in this table are based on a maximum supported rafter span of 16 feet where the supported span is the total horizontal distance spanned by the roof rafters divided in half not the diagonal distance or the length of the rafter. Visit the roof framing page for more information on cutting roof rafters and visit the roof pitch calculator for determining rafter lengths based on rise and run. These numbers are for roofs supporting light loads of 20 pounds for square foot.

1 psf lb f ft 2 47 88 n m 2. An syp 2 6 rafter at 24 o c.