2x6 Roof Span Chart

Douglas fir maximum horizontal roof rafter span for lumber grade selected structural and no.

2x6 roof span chart. If you have a single sloped roof then the 11 span distance for 2 4 rafters o c. Listed are 46 tables based on common loading conditions for floor joists ceiling joists and rafters. 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. This table agrees that 10 12ft is the max span for typical grade lumber at typical spacings for a 5psf dead load.

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. For roof live loads less than 20 pounds per square foot psf rafter spans and required e values tabulated for 20 psf shall be permitted to be adjusted in accordance with the fol lowing table. Live load is weight of furniture wind snow and more. View joist rafter tables.

2 are indicated below. Maximum rafter spans for a patio roof. 1 ft 0 3048 m. Also available for the android os.

For heavy roofs or in. Simplified maximum span tables for selected visual and mechanical grades of southern pine lumber in sizes 2 4 thru 2 12. 1 psf lb f ft 2 47 88 n m 2. Dead load weight of structure and fixed loads 15 lbs ft 2.

The loads are based on adjusted roof snow loads from the governing building code. It looks like the answer is probably not if this calculator from the american wood council is to be believed and if my assumptions about your materials and load are correct the max span is about 10ft for a pine 2x6. 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. In areas with mild climates patio roofs are generally designed for loads of 30 psf pounds per square foot.

Therefore for gable roofed sheds the rafter span table is indicating how far a rafter can span half of your shed s width. Rafter spans can be extended slightly beyond what the rafter tables suggest when there is a cantelever extending beyond the supporting wall. Rafter spans are tabulated for the most common roof loads.