Max Floor Joist Span 2x6

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Max floor joist span 2x6. Listed are 46 tables based on common loading conditions for floor joists ceiling joists and rafters. 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. 1 ft 0 3048 m.

For example in the joist span table below the highlighted cell shows that 2 x 8 southern yellow pine joists that have a grade of 2 and 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. 1 psf lb f ft 2 47 88 n m 2. This chart is for basic reference only. If you have any questions.

View joist rafter tables. Simplified maximum span tables for selected visual and mechanical grades of southern pine lumber in sizes 2 4 thru 2 12. 2 grade of douglas fir are indicated below. The larger the deck the larger the joists.

Dead load is the weight of the structure and any fixed items. Dead load weight of structure and fixed loads 10 lbs ft 2. True floor joist span calculations can only be made by a structural engineer or contractor. Live load is weight of furniture wind snow and more.

This sample table gives minimum floor joist sizes for joists spaced at 16 inches and 24 inches on center o c for 2 grade lumber with 10 pounds per square foot of dead load and 40 pounds of live load which is typical of normal residential construction. These tables can also be used to determine deck joist span. 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.

Live load represents the weight of furniture snow etc. 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.