Maximum Span 2x6 Roof Joist

Spans for ceiling joists shall be in accordance with tables r802 4 1 and r802 4 2.

Maximum span 2x6 roof joist.

Also available for the android os. Simplified maximum span tables for selected visual and mechanical grades of southern pine lumber in sizes 2 4 thru 2 12. Listed are 46 tables based on common loading conditions for floor joists ceiling joists and rafters. Span calculator for wood joists and rafters also available for the android os.

View joist rafter tables. 2 grade of douglas fir are indicated below. Dead load weight of structure and fixed loads 10 lbs ft 2. Table r802 4 1 ceiling joist spans for common lumber species uninhabitable attics without storage live load 10 psf l δ 240.

When building a house or even a deck it is important to confirm you have the correct joist sizes spans and spacing before you get started. For other grades and species and for other loading conditions refer to the awc stjr. Joist span and spacing is set by your local building code. 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.

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. 1 ft 0 3048 m. Maximum floor joist span for no. Dead load weight of structure and fixed loads 15 lbs ft 2.

While most residential construction uses 2x8 joists with 16 inch spacing there are many other factors you need to consider when determining the proper joist span length. Live load is weight of furniture wind snow and more. 1 psf lb f ft 2 47 88 n m 2. For example the highlighted cell below shows that a 2 x 6 southern yellow pine joist with a grade of 2 and spaced 24 apart can have a maximum span of 10 feet 0 inches 10 0 if you are designing your structure to support a plaster ceiling.

2 are indicated below. Live load is weight of furniture wind snow and more.