Shed Roof Maximum Span

F stands for the beam.

Shed roof maximum span.

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. The beam spans the 10 foot width of the roof. 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. This table is simply a sample and may not be valid for your region.

For a porch roof the beam needs to be sized according to the maximum snow loads in your area and you must know enough about the porch design to determine how the load will be distributed and over what distance the beam will carry the load. Both of these are for light roof loads. Maximum rafter span of 16 feet. As mentioned above a 2 4 spf shed roof rafter can span 11.

1 psf lb f ft 2 47 88 n m 2. I m hoping that i can get buy for aesthetics with only four posts two in the corners and two equally spaced between w 13 5 spans. An syp rafter can span 11. For 2x10s or 2x8s.

1 ft 0 3048 m. For heavy roofs or in areas with substantial snowfall or winds call your local building department for code requirements. The total load is 4 000 pounds. 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.

For example in the rafter span table below the highlighted cell in the 40 live load table indicates that 2 x 8 southern yellow pine joists that have a grade of 2 that are spaced 24 apart can have a maximum span of 10 feet 3 inches 10 3 if designing for a live load of 40 lbs ft 2. Span calculator for wood joists and rafters also available for the android os. Live load is weight of furniture wind snow and more. 2 are indicated below.

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. Also available for the android os. If you look at the rafter span chart you ll notice that 2x4s can be used for rafters on spans up to 11. My plan is to build a shed roof.

Dead load weight of structure and fixed loads 15 lbs ft 2.