You can also use the wood beam calculator from the american wood council website to determine maximum rafter and joist lengths.
Timber floor joist span tables.
These tables can also be used to determine deck joist span.
These span tables assume installation of at least three joists or rafters that are spaced not more than 24 on center.
View joist rafter tables.
Joist and rafter span tables.
Simplified maximum span tables for selected visual and mechanical grades of southern pine lumber in sizes 2 4 thru 2 12.
Bci joists are specially constructed i joists with flanges made from strong versa lam laminated veneer lumber with oriented stranded board webs and approved waterproof structural adhesives providing outstanding strength and durability.
The calculated spans assume fully supported members properly sheathed and nailed on the top edge of the joist or rafter.
Engineered wood products ewp span and size charts for bci joists.
Straight line interpolation shall be permitted for intermediate spans and design values.