2 X 10 Floor Joist Span

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.

2 x 10 floor joist span. Span entries are listed for 2 6 through 2 12 joists and 12 in 16 in and 24 in. Joist span and spacing is set by your local building code. Dead load weight of structure and fixed loads 10 lbs ft 2. 2x10 to 15 feet and 2x12 to 18 feet.

A 2x8 up to 12 feet. The lengths and sizes of joists vary depending on the species and quality of the lumber used. 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. Spans in this table were derived from the irc table r502 3 1 2 design criteria.

Span calculator for wood joists and rafters also available for the android os. True floor joist span calculations can only be made by a structural engineer or contractor. 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. 2 grade of douglas fir are indicated below.

1 psf lb f ft 2 47 88 n m 2. In general terms joists spaced 16 inches on center can span 1 5 times in feet their depth in inches. 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. These tables can also be used to determine deck joist span.

Maximum floor joist span for no. Rafter and joist span faq. Also available for the android os. Live load is weight of furniture wind snow and more.

The larger the deck the larger the joists. While most residential construction uses 2x8 joists with 16 inch spacing there are many other factors you need to consider when determining the proper joist span length. Joists that are closer together can support more weight which allows the joists to span a longer distance than joists spaced further apart. Hem fir 2 joists with a live dead load of 40 10 psf.