2x6 Roof Rafter Span

An spf roof at the same spacing and lumber size will span 11.

2x6 roof rafter span.

Can span up to 13 4. That means it can span a total length of over 26 for a gable roof. So this table could accommodate a house with a total rafter span or house width of 32 feet. If you look at the rafter span chart you ll notice that 2x4s can be used for rafters on spans up to 11.

This rafter span calculator is species specific for douglas fir hemlock etc. 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. More roof calculators roof truss calculator how to cut rafters. An syp 2 6 rafter at 24 o c.

Also available for the android os. 1 psf lb f ft 2 47 88 n m 2. This is based upon the span of the rafter horizontal span not total rafter length live and dead loads. 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.

To size joists and rafters use the maximum span tables for southern yellow pine. Anything beyond that you are looking at using 2x6s for most sheds. These numbers are for roofs supporting light loads of 20 pounds for square foot. Douglas fir maximum horizontal roof rafter span for lumber grade selected structural and no.

1 ft 0 3048 m. Rafter span tables use these tables to determine lengths sizes and spacing of rafters based on a variety of factors such as species load grade spacing and pitch. 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. Dead load weight of structure and fixed loads 15 lbs ft 2.

2 are indicated below. For heavy roofs or in areas with substantial snowfall or winds call your local building department for code requirements.