Floor Span Calculator

Beam span deck framing beams floor joist span tables calculator span unsupported floor ceiling joists continuous vs single span joists jlc deck floor joist span chart cabin cantilever length restrictions in forte.

Floor span calculator. Also available for the android os. Next use the buttons in the table to select the maximum length in feet or metres in brackets that your floor joists must span. Span tables tutorialdeck floor joist span chart cabin decks stair railingbci joists i joist span table chartfloor joist spantables to set your joists with images rooffloor joist span. We have engineered this calculator to provide spans which will produce a solid built house with no bounce in the floors or any swags in the ceiling.

Our floor joist span tables are based on loadings given in the newer amended version of bs 6399 1. Span calculator for wood joists and rafters also available for the android os. This calculator takes all of this into consideration. The load on an outside wall with clear span trusses is exactly half the load on each wall.

This means that some values are slightly more conservative than span tables from other sources if those do not include the amended guidance. Span tables for domestic floor joists to bs 5268 7 1 note. 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 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. You can also use the wood beam calculator from the american wood council website to determine maximum rafter and joist lengths. To use the beam span calculator below first select the number of floors that the floor beam will be supporting from the drop down list. The lowest is a plain ceiling joist with no storage 10 pounds per square foot.

You only have to select all. Span calculator for wood joists and rafters also available for the android os. 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. There are six choices.