Roof Rafter Spacing 2x6

Rafter and roof joist spacing is only one part of a complex roof design that works together to form a structure that meets building codes and can hold up the weight of the roof and roof load.

Roof rafter spacing 2x6.

An spf roof at the same spacing and lumber size will span 11. Patio roof maximum beam rafter spans. 1 psf lb f ft 2 47 88 n m 2. These numbers are for roofs supporting light loads of 20 pounds for square foot.

If your project had a rafter length of 8 or less a safe and strong method is to use 2x8 framed 16 on center. 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. For more information see our disclosures here. 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.

Can span up to 13 4. Typical rafter spacing codes will specify a minimum spacing of 16 inches 19 2 inches or 24 inches. This post may contain affiliate links. 2 are indicated below.

Builders aren t bound by standard rafter spacing measurements. Structures such as sheds or barns can be frames with rafters every 24 again make sure to consult local codes. An syp 2 6 rafter at 24 o c. Live load is weight of furniture wind snow and more.

Douglas fir maximum horizontal roof rafter span for lumber grade selected structural and no. Spacing in exterior exposure. If your local building authority has a rafter spacing code you may not space rafters wider than required by code. 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.

That means it can span a total length of over 26 for a gable roof. Dead load weight of structure and fixed loads 15 lbs ft 2. It is always better to have a large rafter rather than be concerned with a sagging roof. But they do tend to space rafters in one of several industry standard increments typically.

Rafter spacing rafters must be strong enough to hold the roof sheathing and the shingles.