Live load represents the weight of furniture snow etc.
Max span for 2x10 floor joist.
View joist rafter tables.
Additionally the load that the floor needs to support is also a consideration.
The maximum span for a 2 x 10 floor joist is up to 21 feet depending on several factors.
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.
The maximum span distance for 12 inch spacing is greater by as much as 30 percent compared to 24 inch spacing.
True floor joist span calculations can only be made by a structural engineer or contractor.
Also available for the android os.
These tables can also be used to determine deck joist span.
If you have any questions.
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.
2x10 to 15 feet and 2x12 to 18 feet.
The larger the deck the larger the joists.
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.
A 2x8 up to 12 feet.
Span calculator for wood joists and rafters also available for the android os.
1 psf lb f ft 2 47 88 n m 2.
Live load is weight of furniture wind snow and more.
1 ft 0 3048 m.
One must take into consideration the spacing of the joists and type of wood used.
Span entries are listed for 2 6 through 2 12 joists and 12 in 16 in and 24 in.
Dead load is the weight of the structure and any fixed items.
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.
Joists that are closer together can support more weight which allows the joists to span a longer distance than joists spaced further apart.
Spacing is measured from the center of one joist to the center of the next.
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.