Floor Joist Span 2x12

Spans in this table were derived from the irc table r502 3 1 2 design criteria.

Floor joist span 2x12.

Hem fir 2 joists with a live dead load of 40 10 psf. Simplified maximum span tables for selected visual and mechanical grades of southern pine lumber in sizes 2 4 thru 2 12. This sample table gives minimum floor joist sizes for joists spaced at 16 inches and 24 inches on center o c for 2 grade lumber with 10 pounds per square foot of dead load and 40 pounds of live load which is typical of normal residential construction. Span calculator for wood joists and rafters also available for the android os.

Dead load weight of structure and fixed loads 10 lbs ft 2. We ve included 2x6 2x8 2x10 and 2x12 joist spans and more. Maximum floor joist span for no. View joist rafter tables.

1 ft 0 3048 m. True floor joist span calculations can only be made by a structural engineer or contractor. 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. Floor joist span tables for various sizes and species of wood.

Listed are 46 tables based on common loading conditions for floor joists ceiling joists and rafters. 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. Also available for the android os. See our complete chart of floor joist size span and spacing requirements before you build.

Live load is weight of furniture wind snow and more.