Max Span For 2x10 Floor Joist

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. 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. Additionally the load that the floor needs to support is also a consideration.

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Span calculator for wood joists and rafters also available for the android os.

Max span for 2x10 floor joist.

Maximum floor joist span for no. Dead load weight of structure and fixed loads 10 lbs ft 2. 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.

1 psf lb f ft 2 47 88 n m 2. The maximum span for a 2 x 10 floor joist is up to 21 feet depending on several factors. View joist rafter tables. Also available for the android os.

The maximum span distance for 12 inch spacing is greater by as much as 30 percent compared to 24 inch spacing. 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. 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. A 2x8 up to 12 feet.

If you have any questions. These tables can also be used to determine deck joist span. Joists that are closer together can support more weight which allows the joists to span a longer distance than joists spaced further apart. 2 grade of douglas fir are indicated below.

Dead load is the weight of the structure and any fixed items. 2x10 to 15 feet and 2x12 to 18 feet. 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.

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. Spacing is measured from the center of one joist to the center of the next. The larger the deck the larger the joists. 1 ft 0 3048 m.

Simplified maximum span tables for selected visual and mechanical grades of southern pine lumber in sizes 2 4 thru 2 12. Live load represents the weight of furniture snow etc. This chart is for basic reference only. One must take into consideration the spacing of the joists and type of wood used.

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