Longest Span Of 2 X 10 Floor Joists

2 grade of douglas fir are indicated below.

Longest span of 2 x 10 floor joists.

These tables can also be used to determine deck joist span. 4 see a 1 3 for 2 span floor joist requirements. 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. 1 ft 0 3048 m.

Live dead 12 16 19 2 24 10 5 0 23 0 30 0 36 0 45 20 10 0 45 0 60 0 72 0 90 30 10. 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 maximum span for a 2 x 10 floor joist is up to 21 feet depending on several factors. Joist span and spacing is set by your local building code.

Span calculator for wood joists and rafters also available for the android os. The numbers in gray indicate the distance between the support posts. Live load is weight of furniture wind snow and more. Spaced at 12 inches the joist may only span 16 feet 8 inches.

Dead load weight of structure and fixed loads 10 lbs ft 2. Span entries are listed for 2 6 through 2 12 joists and 12 in 16 in and 24 in. Maximum floor joist span for no. The width is considerably more important than the thickness of a board.

Additionally the load that the floor needs to support is also a consideration. Table 9 2 adjustment factors for alternate loading and spacing conditions for determining required com pression perpendicular to grain design values f c for joists and rafters. 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. A 2 2x10 can span 10 feet and so on.

A double 2x12 beam can span 12 feet. Also available for the android os. One must take into consideration the spacing of the joists and type of wood used. When building a house or even a deck it is important to confirm you have the correct joist sizes spans and spacing before you get started.

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. Dimensional lumber deck beam span chart. At 16 inch spacing 15 feet 2 inches and 13 feet 3 inches at 24 inch spacing. 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.