Maximum Span 2x6 Roof Rafter

For heavy roofs or in areas with substantial snowfall or winds call your local building department for code requirements.

Maximum span 2x6 roof rafter.

Rafter spans can be extended slightly beyond what the rafter tables suggest when there is a cantelever extending beyond the supporting wall. View joist rafter tables. Also available for the android os. Can span up to 13 4.

That means it can span a total length of over 26 for a gable roof. These numbers are for roofs supporting light loads of 20 pounds for square foot. Ceiling joist span use this table to determine the maximum lengths of ceiling joists based on species of lumber joist spacing and joist size. 2 are indicated below.

An syp 2 6 rafter at 24 o c. 1 psf lb f ft 2 47 88 n m 2. 1 ft 0 3048 m. 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.

Maximum rafter span of 16 feet. Listed are 46 tables based on common loading conditions for floor joists ceiling joists and rafters. 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. Dead load weight of structure and fixed loads 15 lbs ft 2.

Span calculator for wood joists and rafters also available for the android os. 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. Simplified maximum span tables for selected visual and mechanical grades of southern pine lumber in sizes 2 4 thru 2 12. An spf roof at the same spacing and lumber size will span 11.

This table is simply a sample and may not be valid for your region.