Roof Rafter Spacing 2x6

An syp 2 6 rafter at 24 o c.

Roof rafter spacing 2x6.

1 psf lb f ft 2 47 88 n m 2. Typical rafter spacing codes will specify a minimum spacing of 16 inches 19 2 inches or 24 inches. 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. Rise and run means that a 6 12 pitch roof has 6 of rise vertical for each foot of run horizontal.

An spf roof at the same spacing and lumber size will span 11. These numbers are for roofs supporting light loads of 20 pounds for square foot. That means it can span a total length of over 26 for a gable roof. Span calculator for wood joists and rafters also available for the.

Spacing in exterior exposure. Rafters must be strong enough to hold the roof sheathing and the shingles. Can span up to 13 4. Douglas fir maximum horizontal roof rafter span for lumber grade selected structural and no.

This post may contain affiliate links. An essential part of planning a patio roof or gazebo project is determining the number size and spacing of rafters beams and posts according to the loads they will carry. Patio roof maximum beam rafter spans. 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.

Live load psf dead load psf span calculator for wood joists and rafters available for the iphone. 2 are indicated below. It is always better to have a large rafter rather than be concerned with a sagging roof. If your local building authority has a rafter spacing code you may not space rafters wider than required by code.

For more information see our disclosures here. 1 ft 0 3048 m. Live load is weight of furniture wind snow and more. But they do tend to space rafters in one of several industry standard increments typically.

If your project had a rafter length of 8 or less a safe and strong method is to use 2x8 framed 16 on center. Structures such as sheds or barns can be frames with rafters every 24 again make sure to consult local codes. Builders aren t bound by standard rafter spacing measurements.