2 By 10 Or 2 By 12 For Floor Joists

I joist questions page 2.

2 by 10 or 2 by 12 for floor joists. As an example consider a room with a floor area of 10 feet by 11 feet 2 inches built with no. 1 ft 0 3048 m. Use a design value table to find the fb value for your floor joists. Maximum floor joist span for no.

1 psf lb f ft 2 47 88 n m 2. 2 grade of douglas fir are indicated below. Y 2020 m 9 d 30 h 15cst. A design value table shows that the joists have an fb value of 1 495 and an e value of 1 900 000.

1 grade 2 by 6 douglas fir larch joists spaced 16 inches on center. Prices can fluctuate big time over a small period span is less than the other alternatives smaller width makes miss nailing more prevalent. But larger is not always better when builders are constructing a home or adding a room addition. 2 10 s or 2 12 s pros.

Common sense tells you that large floor joists can carry more load and spacing joists closer together also increases the load bearing capacity of a floor. Easy to get no special drawing design needed installation methods are known by all carpenters. 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.

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. Live load is weight of furniture wind snow and more.