These tables can also be used to determine deck joist span.
Max floor joist span 2x6.
Simplified maximum span tables for selected visual and mechanical grades of southern pine lumber in sizes 2 4 thru 2 12.
Our joist span charts are for wood joists with a maximum dead load of 10 pounds per square foot and a live load of 40 pounds per square foot.
1 psf lb f ft 2 47 88 n m 2.
Live load is weight of furniture wind snow and more.
Listed are 46 tables based on common loading conditions for floor joists ceiling joists and rafters.
Also available for the android os.
1 ft 0 3048 m.
The illustrations one for cantilever joists and one for flush rim beam hung joists point out where joist span measurements are taken from the saddle of the ledger mounted joist hanger to the center of a dropped beam or saddle of the.
View joist rafter tables.
For best results refer to our wood and composite deck joist span table.
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.
Dead load is the weight of the structure and any fixed items.
Span calculator for wood joists and rafters also available for the android os.
The larger the deck the larger the joists.
True floor joist span calculations can only be made by a structural engineer or contractor.
If you have any questions.
Span entries are listed for 2 6 through 2 12 joists and 12 in 16 in and 24 in.
In typical deck construction with a ledger on one side of the joist and beam on the other the size of the joists is driven by the size of the deck and based on the general maximum spans mentioned above.
2 grade of douglas fir are indicated below.
Dead load weight of structure and fixed loads 10 lbs ft 2.
Maximum floor joist span for no.
Live load represents the weight of furniture snow etc.
