A double 2x12 beam can span 12 feet.
2x6 floor board span.
If you will run decking at an angle you might need to put the joists closer together.
A 2 2x10 can span 10 feet and so on.
The strength of a given joist board is most dramatically affected by the board s top to bottom width.
2 grade of douglas fir are indicated below.
For conventional guardrail post installation bolted to the side of the framing larger framing will provide more strength in the rails.
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 psf lb f ft 2 47 88 n m 2.
Listed are 46 tables based on common loading conditions for floor joists ceiling joists and rafters.
Dead load weight of structure and fixed loads 10 lbs ft 2.
If you use 5 4 decking joists must be no farther apart than 16 inches.
Dimensional lumber deck beam span chart.
Simplified maximum span tables for selected visual and mechanical grades of southern pine lumber in sizes 2 4 thru 2 12.
For example a joist made from doubled 2 x 6s can span a distance about 25 percent more than a single 2 x 6 but a 2 x 12 can span about 80 percent more than a 2 x 6 even.
Maximum floor joist span for no.
2x6 joists should only be used on ground level decks that do not require and will not provide for any guards.
View joist rafter tables.
We ve included 2x6 2x8 2x10 and 2x12 joist spans and more.
Decking made of 2x4s or 2x6s can span up to 24 inches.
1 ft 0 3048 m.
Also available for the android os.
For upper level decks 2x10 is recommended as the minimum size to use for strong guard post connections.
See our complete chart of floor joist size span and spacing requirements before you build.
The numbers in gray indicate the distance between the support posts.
Again it s important to know your local codes.
Live load is weight of furniture wind snow and more.
