Shed Roof Rafter Span Table

Rafter spans can be extended slightly beyond what the rafter tables suggest when there is a cantelever extending beyond the supporting wall.

Shed roof rafter span table.

If you have a single sloped roof then the 11 span distance for 2 4 rafters o c. You are going to cut out triangles that will cover the apex of each set of rafters. For heavy roofs or in areas with substantial snowfall or winds call your local building department for code requirements. Straight line interpolation shall be permitted for intermediate spans and design values.

So this table could accommodate a house with a total rafter span or house width of 32 feet. Span calculator for wood joists and rafters also available for the android os. Means that your shed should be no wider or longer depending on how you orientate your single sloped roof than 11. To size joists and rafters use the maximum span tables for southern yellow pine.

More roof calculators roof truss calculator how to cut rafters. These span tables assume installation of at least three joists or rafters that are spaced not more than 24 on center. Rafter span tables use these tables to determine lengths sizes and spacing of rafters. So roughly 7 8 long for a 2 4.

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. Use this table to determine the maximum lengths of ceiling joists based on species of lumber joist spacing and joist size. The calculated spans assume fully supported members properly sheathed and nailed on the top edge of the joist or rafter. This is based upon the span of the rafter horizontal span not total rafter length live and dead loads.

This rafter span calculator is species specific for douglas fir hemlock etc. Also available for the android os. Therefore for gable roofed sheds the rafter span table is indicating how far a rafter can span half of your shed s width.