2x12 Floor Joist Span Chart

Floor joist span use this table to determine the maximum lengths of floor joists based on species of lumber joist spacing and joist size.

2x12 floor joist span chart. 1 psf lb f ft 2 47 88 n m 2. Listed are 46 tables based on common loading conditions for floor joists ceiling joists and rafters. Live load is weight of furniture wind snow and more. Maximum floor joist span for no.

2 grade of douglas fir are indicated below. Floor joist span tables for various sizes and species of wood. Joist span table use these tables to determine floor joist spans based on grade of lumber size of joist floor joist spacing and a live load of 30 lbs ft 2 or 40 lbs ft 2 these tables can also be used to determine deck joist span. The numbers in gray indicate the distance between the support posts.

When supporting joists that span 12 feet with no overhang beyond the beam a double ply beam can span in feet a value equal to its depth in inches. A double 2x12 beam can span 12 feet. View joist rafter tables. Dimensional lumber deck beam span chart.

We ve included 2x6 2x8 2x10 and 2x12 joist spans and more. A 2x8 up to 12 feet. The table has two column sections one for joists without a cantilever and one for joists with a cantilever. Dead load weight of structure and fixed loads 10 lbs ft 2.

See our complete chart of floor joist size span and spacing requirements before you build. 1 ft 0 3048 m. Hem fir 2 joists with a live dead load of 40 10 psf. Simplified maximum span tables for selected visual and mechanical grades of southern pine lumber in sizes 2 4 thru 2 12.

Span entries are listed for 2 6 through 2 12 joists and 12 in 16 in and 24 in. A 2 2x10 can span 10 feet and so on. 2x10 to 15 feet and 2x12 to 18 feet. Roof rafter span use this table to determine the maximum lengths of roof rafters based on species and grade of lumber spacing dimensions load and slope.

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