Wood Floor Joist Span Calculator

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.

Wood floor joist span calculator. Apa performance rated i joists pris are manufactured in accordance with pri 400 performance standard for apa ews i joists form x720 this performance standard provides an easy to use table of allowable spans for applications in residential floor construction allowing designers and builders to select and use i joists from various member manufacturers using just one set of span. 2x6 over a 14 span doityourself community forums. Designing with wood beam span tables. Calculate the span for floor and ceiling joist with this free and simple online calculator.

Deck joist span chart twhouse org. Wood beams maximum span calculator for. Next use the buttons in the table to select the maximum length in feet or metres in brackets that your floor joists must span. Engineered wood products ewp span and size charts for bci joists.

The load on an outside wall with clear span trusses is exactly half the load on each wall. Species southern pine douglas fir larch hem fir spruce pine fir redwood western cedars ponderosa pine red pine. Floor joist span tables calculator. You can also use the wood beam calculator from the american wood council website to determine maximum rafter and joist lengths.

The resulting spans are less than the 2012 irc codes but they are to our standards at scott s framing. For example if building is 24 x 24 and has trusses and the load on the roof will be for 30 lb snow load and a ceiling with no storage will total out like this. Floor joist span calculator. Joist calculator tutorial you.

While every effort has been made to insure the accuracy of the information presented and special effort has been made to assure that the information reflects the state of the art neither the west coast lumber inspection bureau the american wood council nor its members assume any responsibility for any particular design prepared from this online span calculator. The spans for joists according to the code is far more than we find acceptable. Span calculator for wood joists and rafters also available for the android os. Use the span tables below to determine allowable lengths of joists and rafters based on size and standard design loads.

Also available for the android os.