Floor Joist Size Chart

Live load is weight of furniture wind snow and more.

Floor joist size chart. Looking at this table you will see there is a choice in the size of floor joist 2 x 6 2 x 8 2 x 10 or 2 x 12 and there is a choice in the joist spacing 12 16 or 14. Engineered wood products ewp span and size charts for bci joists. 2 grade of douglas fir are indicated below.

Bci joists are specially constructed i joists with flanges made from strong versa lam laminated veneer lumber with oriented stranded board webs and approved waterproof structural adhesives providing outstanding strength and durability. Joist span table use these tables to determine floor joist spans based on grade of lumber size of joist floor joist spacing and a live load of 30 lbs ft 2 or 40 lbs ft 2 these tables can also be used to determine deck joist span. A 2x8 up to 12 feet.

Maximum floor joist span for no. In typical deck construction with a ledger on one side of the joist and beam on the other the size of the joists is driven by the size of the deck and based on the general maximum spans mentioned above. 2x10 to 15 feet and 2x12 to 18 feet.

All joists are bridged sample floor joist span table. The table excerpt above is simply a sample and may not be valid for your region. 1 psf lb f ft 2 47 88 n m 2.

The larger the deck the larger the joists. Floor joist span tables for various sizes and species of wood. 1 ft 0 3048 m.