Floor Joist Span Calculator

Usually 400 450 or 600mm but any value can be used up to 610mm max.

Floor joist span calculator.

1 enter joist details 1 1 span and joist spacing. 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. Calculations to bs 5268 2 2002. Select the on center spacing for the joists.

This is how far apart they will be. The highest is a fully loaded floor 70 pounds per square foot. Span calculator for wood joists and rafters also available for the android os. This is the distance between joist centres.

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 lowest is a plain ceiling joist with no storage 10 pounds per square foot. Domestic floor joist calculator. Also available for the android os.

There are six choices. 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 full version allows any size. This demo version is fixed at 1m clear span.