Floor Joist Span Calculator

1 enter joist details 1 1 span and joist spacing.

Floor joist span calculator. Maximum floor joist span for no. The lowest is a plain ceiling joist with no storage 10 pounds per square foot. 1 psf lb f ft 2 47 88 n m 2. Domestic floor joist calculator.

Calculations to bs 5268 2 2002. This is how far apart they will be. Span calculator for wood joists and rafters also available for the android os. Species southern pine douglas fir larch hem fir spruce pine fir redwood western cedars ponderosa pine red pine.

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. Usually 400 450 or 600mm but any value can be used up to 610mm max. The user enters the member geometry adds loads holes and other relevant data and then selects a product for analysis. Select the on center spacing for the joists.

There are six choices. You can also use the wood beam calculator from the american wood council website to determine maximum rafter and joist lengths. It is simple to use yet flexible enough to analyze a variety of common applications. Also available for the android os.

Most lay outs are on 16 so the field is pre selected. Use the span tables below to determine allowable lengths of joists and rafters based on size and standard design loads. Next use the buttons in the table to select the maximum length in feet or metres in brackets that your floor joists must span. The highest is a fully loaded floor 70 pounds per square foot.

This is the distance between joist centres. 2 grade of douglas fir are indicated below. 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. 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.

Dead load weight of structure and fixed loads 10 lbs ft 2. 1 ft 0 3048 m. Live load is weight of furniture wind snow and more. The full version allows any size.

This demo version is fixed at 1m clear span.