Roof Joist Spacing Calculator
Spacing in exterior exposure.
Roof joist spacing calculator. The full version allows any size. This span table is to the format and methodology given in bs 5268 7 2. This is the distance between joist centres. Span calculator for wood joists and rafters also available for.
Span calculator for wood joists and rafters also available for the. Click on a span to generate a full calculation you can adjust the exact span. Spacing in live load psf dead load psf exterior exposure. These spans were calculated using our flat roof joist calculation.
Our roof rafter calculator tools are handy for calculating the number of rafters needed rafter length calculator lineal feet of rafter board feed in ridge and sub facia and the total board feet in the roof. Span calculator for wood joists and rafters available for the iphone. Floor joist span use this table to determine the maximum lengths of floor joists based on species of lumber joist spacing and joist size. Rise and run means that a 6 12 pitch roof has 6 of rise vertical for each foot of run horizontal.
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. This demo version is fixed at 1m clear span. Find the column for your dead load and spacing and the row for your timber size to find the permissible clear span in metres. Flat roof joist calculator.