Wood Floor Joist Span Chart
Span calculator for wood joists and rafters also available for the android os.
Wood floor joist span chart. Simplified maximum span tables for selected visual and mechanical grades of southern pine lumber in sizes 2 4 thru 2 12. You can also use the wood beam calculator from the american wood council website to determine maximum rafter and joist lengths. Also available for the android os. View joist rafter tables.
Our joist span charts are for wood joists with a maximum dead load of 10 pounds per square foot and a live load of 40 pounds per square foot. Live load represents the weight of furniture snow etc. Dead load is the weight of the structure and any fixed items. If you have any questions.
Use the span tables below to determine allowable lengths of joists and rafters based on size and standard design loads. Engineered wood products ewp span and size charts for bci joists. Listed are 46 tables based on common loading conditions for floor joists ceiling joists and rafters.