Wood Floor Joist Span Table

Floor joist span calculator.
Wood floor joist span table. Deflection for 30 psf live load. Listed are 46 tables based on common loading conditions for floor joists ceiling joists and rafters. Next use the buttons in the table to select the maximum length in feet or metres in brackets that your floor joists must span. Also available for the android os.
Span calculator for wood joists and rafters also available for the android os. Designing with wood beam span tables. Limited to span in inches divided by 360. Strength live load of 30 psf plus dead load of 10 psf determines the required bending design value.
To use the joist span calculator below first select the species of lumber you will use for your construction project from the drop down list. Use the span tables below to determine allowable lengths of joists and rafters based on size and standard design loads. View joist rafter tables. You can also use the wood beam calculator from the american wood council website to determine maximum rafter and joist lengths.
Span tables for jois ts and rafters american wood council 4 span tables for joists and rafters american wood council design criteria.