Maximum Span 2x6 Roof Rafter

For example in the rafter span table below the highlighted cell in the 40 live load table indicates that 2 x 8 southern yellow pine joists that have a grade of 2 that are spaced 24 apart can have a maximum span of 10 feet 3 inches 10 3 if designing for a live load of 40 lbs ft 2.

Maximum span 2x6 roof rafter.

Dead load weight of structure and fixed loads 15 lbs ft 2. View joist rafter tables. 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.

An spf roof at the same spacing and lumber size will span 11. For heavy roofs or in areas with substantial snowfall or winds call your local building department for code requirements. This table is simply a sample and may not be valid for your region. Ceiling joist span use this table to determine the maximum lengths of ceiling joists based on species of lumber joist spacing and joist size.

While every effort has been made to insure the accuracy of the information presented and special effort has been made to assure that the information reflects the state of the art neither the west coast lumber inspection bureau the american wood council nor its members assume any responsibility for any particular design prepared from this online span calculator. Live load is weight of furniture wind snow and more. Span calculator for wood joists and rafters also available for the android os. 1 psf lb f ft 2 47 88 n m 2.

Also available for the android os. 2 are indicated below. 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. Simplified maximum span tables for selected visual and mechanical grades of southern pine lumber in sizes 2 4 thru 2 12.

Can span up to 13 4. An syp 2 6 rafter at 24 o c. Rafter spans can be extended slightly beyond what the rafter tables suggest when there is a cantelever extending beyond the supporting wall. Listed are 46 tables based on common loading conditions for floor joists ceiling joists and rafters.

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