Roof Joist Spacing Calculator

Spacing in live load psf dead load psf exterior exposure.

Roof joist spacing calculator.

Rise and run means that a 6 12 pitch roof has 6 of rise vertical for each foot of run horizontal. The full version allows any size. Span calculator for wood joists and rafters also available for. Spacing in exterior exposure.

These spans were calculated using our flat roof joist calculation. 1 enter joist details 1 1 span and joist spacing. Span calculator for wood joists and rafters available for the iphone. This demo version is fixed at 1m clear span.

This is the distance between joist centres. Live load psf dead load psf span calculator for wood joists and rafters available for the iphone. Span calculator for wood joists and rafters also available for the. This span table is to the format and methodology given in bs 5268 7 2.

Roof rafter span use this table to determine the maximum lengths of roof rafters based on species and grade of lumber spacing dimensions load and slope. Click on a span to generate a full calculation you can adjust the exact span. Floor joist span use this table to determine the maximum lengths of floor joists based on species of lumber joist spacing and joist size. Usually 400 450 or 600mm but any value can be used up to 610mm max.