Span calculator for wood joists and rafters also available for the android os.
Floor joist span 2x12.
Maximum floor joist span for no.
See our complete chart of floor joist size span and spacing requirements before you build.
Listed are 46 tables based on common loading conditions for floor joists ceiling 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.
1 psf lb f ft 2 47 88 n m 2.
Simplified maximum span tables for selected visual and mechanical grades of southern pine lumber in sizes 2 4 thru 2 12.
View joist rafter tables.
2 grade of douglas fir are indicated below.
Spans in this table were derived from the irc table r502 3 1 2 design criteria.
Dead load weight of structure and fixed loads 10 lbs ft 2.
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.
We ve included 2x6 2x8 2x10 and 2x12 joist spans and more.
Live load is weight of furniture wind snow and more.
Span entries are listed for 2 6 through 2 12 joists and 12 in 16 in and 24 in.
Hem fir 2 joists with a live dead load of 40 10 psf.
Floor joist span tables for various sizes and species of wood.
Also available for the android os.