2x12 Floor Joist Span

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

2x12 floor joist span. True floor joist span calculations can only be made by a structural engineer or contractor. View joist rafter tables. A 2 2x10 can span 10 feet and so on.

Live load is weight of furniture wind snow and more. 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. Dimensional lumber deck beam span chart.

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. 1 psf lb f ft 2 47 88 n m 2. A double 2x12 beam can span 12 feet.

Moisture content the listed dry sizes are based on lumber at 19 percent maximum moisture content. Also available for the android os. See our complete chart of floor joist size span and spacing requirements before you build.

The floor joist spacing is the distance between the centers of any two installed joists. Listed are 46 tables based on common loading conditions for floor joists ceiling joists and rafters. 2 x 12 1 1 2 x 11 1 4 4.

See the image below for an example of joists spaced 16 on center 16 o c. 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.