View joist rafter tables.
Floor framing spans syp.
These span tables assume installation of at least three joists or rafters that are spaced not more than 24 on center.
1 psf lb f ft 2 47 88 n m 2.
If the re engineering is correct the floors and roof will be fine with spf.
Tables listing maximum spans for southern pine joists and rafters are detailed below.
The loading includes the weight of the structure and other fixed weights which are defined as the dead load.
Deck beam span table deck joist span table deck joist rule of thumb deck porch construction structural fasteners deck porch post beam connectors.
Maximum floor joist span for no.
Simplified maximum span tables for selected visual and mechanical grades of southern pine lumber in sizes 2 4 thru 2 12.
Floor joist span tables for various sizes and species of wood.
For each application a pdf download is available.
Dead load weight of structure and fixed loads 10 lbs ft 2.
These 46 tables are based upon design values for visually graded southern pine dimension lumber that became effective june 1 2013.
Allowable spans for all species and grades of nominal 2 inch framing lumber customarily used in construction.
Spf cannot span the same distance as syp so you must have closer spacing larger sized pieces 2x10 instead of 2x8 for example etc.
The distance you can span a 2 by 10 joist without additional support depends on the species and grade of the wood how far apart the joists are and the expected load on the joists.
Ceiling joist span use this table to determine the maximum lengths of ceiling joists based on species of lumber joist spacing and joist size.
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.
1 ft 0 3048 m.
Span calculator for wood joists and rafters also available for the android os.
Live load is weight of furniture wind snow and more.
Rafter spans can be extended slightly beyond what the rafter tables suggest when there is a cantelever extending beyond the supporting wall.
Also available for the android os.