Maximum Span 2x6 Roof Rafter

The spans in this table are based on a maximum supported rafter span of 16 feet where the supported span is the total horizontal distance spanned by the roof rafters divided in half not the diagonal distance or the length of the rafter.

Maximum span 2x6 roof rafter.

Ceiling joist span use this table to determine the maximum lengths of ceiling joists based on species of lumber joist spacing and joist size. Span calculator for wood joists and rafters also available for the android os. Douglas fir maximum horizontal roof rafter span for lumber grade selected structural and no. 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.

These numbers are for roofs supporting light loads of 20 pounds for square foot. Live load is weight of furniture wind snow and more. Can span up to 13 4. Maximum rafter span of 16 feet.

Simplified maximum span tables for selected visual and mechanical grades of southern pine lumber in sizes 2 4 thru 2 12. That means it can span a total length of over 26 for a gable roof. 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. View joist rafter tables.

An spf roof at the same spacing and lumber size will span 11. Also available for the android os. Rafter spans can be extended slightly beyond what the rafter tables suggest when there is a cantelever extending beyond the supporting wall. For heavy roofs or in areas with substantial snowfall or winds call your local building department for code requirements.

1 psf lb f ft 2 47 88 n m 2. An syp 2 6 rafter at 24 o c. Dead load weight of structure and fixed loads 15 lbs ft 2. 1 ft 0 3048 m.

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