2x6 Roof Rafter Span

This is based upon the span of the rafter horizontal span not total rafter length live and dead loads.

2x6 roof rafter span. 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. The pitch and span of your roof will dictate how long of a rafter you ll need use maximum span calculator to help you find your rafter size. Input the rafter span on the flat eave overhang and pitch of the roof.

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. As mentioned above a 2 4 spf shed roof rafter can span 11. 1 psf lb f ft 2 47 88 n m 2. For heavy roofs or in areas with substantial snowfall or winds call your local building department for code requirements.

An syp rafter can span 11. This calculator is to be used as an estimating tool only. To size joists and rafters use the maximum span tables for southern yellow pine. 2 are indicated below.

If you live in an area that requires a shed roof rafter to support a heavy load then an spf rafter can only span 7. Will i be able to span a concrete slab of 11 6. Live load is weight of furniture wind snow and more. Area span on the flat please enter area span on the flat in foot.

1 ft 0 3048 m. Dead load weight of structure and fixed loads 15 lbs ft 2. If i tie into a 6 12 pitch roof with 2x6 s. Click the button to calculate the stock size needed for this job.

My plan is to add 2x6 supports on to the top plates of the existing house wall where the 2x6 s intersect with the walls. Also available for the android os. Anything beyond that you are looking at using 2x6s for most sheds. Both of these are for light roof loads.

More roof calculators roof truss calculator how to cut rafters. 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. If you look at the rafter span chart you ll notice that 2x4s can be used for rafters on spans up to 11.