2 X 10 Floor Joist Span Chart

These tables can also be used to determine deck joist span.

2 x 10 floor joist span chart. Maximum floor joist span for no. 2 grade of douglas fir are indicated below. Spaced at 12 inches the joist may only span 16 feet 8 inches. 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.

Live load is weight of furniture wind snow and more. To learn more about deck joist sizing spacing and allowable span reference this chart. For example you can span a 1 grade no knots southern yellow pine a greater distance than a 2 grade with knots southern yellow pine. A double 2x12 beam can span 12 feet.

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. Rafter and joist span faq. The lengths and sizes of joists vary depending on the species and quality of the lumber used. At 16 inch spacing 15 feet 2 inches and 13 feet 3 inches at 24 inch spacing.

A 2 2x10 can span 10 feet and so on. View joist rafter tables. Also available for the android os. Listed are 46 tables based on common loading conditions for floor joists ceiling joists and rafters.

1 psf lb f ft 2 47 88 n m 2. 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. Dead load weight of structure and fixed loads 10 lbs ft 2. Simplified maximum span tables for selected visual and mechanical grades of southern pine lumber in sizes 2 4 thru 2 12.

1 ft 0 3048 m. Span calculator for wood joists and rafters also available for the android os. The minimum bearing length is 1 spans values in bold indicate that web stiffeners are required at the osb end panel. Use a joist span table such as those found in the resources section to determine the maximum 2 by 10 joist spans for other species and lumber grades.

The numbers in gray indicate the distance between the support posts. The 2 4 s and 2 6 s are considered to be in spf 3 stud and the 2 8 s and 2 10 s in spf 1 2.