2X8 Floor Joist Span

2X8 Floor Joist Span. 1 ft 03048 m. Span ft 15 20 25 30 35 2 30 22 18 15 13 4 59 44 36 30 25 6 89 67 53 44 38 8 119 89 71 59 51 10 148 111 89 74 63 12 178 133 107 89 76 14 207 156 124 104 89 16 237 178 142 119 102 18 267 200 160 133 114.

In general terms joists spaced 16 inches on center can span 15 times in feet their depth in inches. Important note about 2012 Span Calculator. When the deck joists are 6 ft.

1 psf lb f ft 2 4788 Nm 2.

Code allows 12 foot with 16 inches on center. In general terms joists spaced 16 inches on center can span 15 times in feet their depth in inches. Span entries are listed for 26 through 212 joists and 12 in 16 in and 24 in. End floor joists constructed on foundation walls parallel to the joist span shall be doubled unless a C-shaped bearing stiffener sized in accordance with Section R50534 is installed web-to-web with the floor joist beneath each supported wall stud as shown in Figure R505319.