Listed are 46 tables based on common loading conditions for floor joists ceiling joists and rafters.
2x12 floor joist span chart.
Floor joist span tables for various sizes and species of wood.
We ve included 2x6 2x8 2x10 and 2x12 joist spans and more.
Spans in this table were derived from the irc table r502 3 1 2 design criteria.
View joist rafter tables.
Dead load weight of structure and fixed loads 10 lbs ft 2.
Simplified maximum span tables for selected visual and mechanical grades of southern pine lumber in sizes 2 4 thru 2 12.
2 grade of douglas fir are indicated below.
Maximum floor joist span for no.
See our complete chart of floor joist size span and spacing requirements before you build.
Also available for the android os.
Live load is weight of furniture wind snow and more.
1 ft 0 3048 m.
Hem fir 2 joists with a live dead load of 40 10 psf.