2x12 Floor Joist Span Chart

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2x12 floor joist span chart.

Floor joist span tables for various sizes and species of wood. 1 ft 0 3048 m. 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. See our complete chart of floor joist size span and spacing requirements before you build.

2 grade of douglas fir are indicated below. Simplified maximum span tables for selected visual and mechanical grades of southern pine lumber in sizes 2 4 thru 2 12. Live load is weight of furniture wind snow and more. Listed are 46 tables based on common loading conditions for floor joists ceiling joists and rafters.

Hem fir 2 joists with a live dead load of 40 10 psf. Span calculator for wood joists and rafters also available for the android os. Maximum floor joist span for no. Spans in this table were derived from the irc table r502 3 1 2 design criteria.

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