Shed Roof Maximum Span

Span calculator for wood joists and rafters also available for the android os.

Shed roof maximum span.

Also available for the android os. Dead load weight of structure and fixed loads 15 lbs ft 2. 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. For heavy roofs or in areas with substantial snowfall or winds call your local building department for code requirements.

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. This table is simply a sample and may not be valid for your region. If you look at the rafter span chart you ll notice that 2x4s can be used for rafters on spans up to 11. 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.

1 ft 0 3048 m. Live load is weight of furniture wind snow and more. With the posts set 10 from the house what is the maximum beam span between the posts. An syp rafter can span 11.

The beam spans the 10 foot width of the roof. Both of these are for light roof loads. As mentioned above a 2 4 spf shed roof rafter can span 11. 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 2x10s or 2x8s. My plan is to build a shed roof. 2 are indicated below. 1 psf lb f ft 2 47 88 n m 2.

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. Douglas fir maximum horizontal roof rafter span for lumber grade selected structural and no. Maximum rafter span of 16 feet. The total load is 4 000 pounds.

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.