What Size Lumber For Shed Roof Rafters

An syp 2 6 rafter at 24 o c.

What size lumber for shed roof rafters.

Live load psf dead load psf span calculator for wood joists and rafters. For example you can span a 1 grade no knots southern yellow pine a greater distance than a 2 grade with knots southern yellow pine. To build a shed roof you ll need rafter boards plywood gusset plates plywood sheathing felt roofing paper and shingles. This calculator helps you make the rafters of the suitable sizes required for your roofing.

There is no standard spacing it depends on what size of rafters you want to use and the span of your shed. Span calculator for wood joists and rafters available for the iphone. Can span up to 13 4. Just enter the dimensions of the roof rise and run to get started.

Rafter and joist span faq. While a 2 6 might be nearly double the cost of a 2 4 you can likely space the 2x6s further apart negating the added expense of increasing your lumber width. Structures such as sheds or barns can be frames with rafters every 24 again make sure to consult local codes. 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.

Rafter is a sloping beam usually wood that supports a pitched roof. The lengths and sizes of joists vary depending on the species and quality of the lumber used. First cut your rafter boards to size using a circular saw to make sure they fit your roof. Our roof rafter calculator tools are handy for calculating the number of rafters needed rafter length calculator lineal feet of rafter board feed in ridge and sub facia and the total board feet in the roof.

It is always better to have a large rafter rather than be concerned with a sagging roof. Span length for 2 6 rafters. For instance 2 grade 2x4s at 16 on center will span just over 9. 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.

Spacing in exterior exposure. For standard shed roof rafter spacing see rafter span chart. Rise and run means that a 6 12 pitch roof has 6 of rise vertical for each foot of run horizontal. Make a birdsmouth notch at the end of each rafter to help it fit into place.

2 6 shed roof rafters are enough for nearly any type of shed a homeowner wants to build.