Shed Roof Rafter Spacing Calculator

2002 bs 5268 7 5.

Shed roof rafter spacing calculator.

Live load psf dead load psf span calculator for wood joists and rafters available for the iphone. If you add an eaves overhang dimension then the amount the rafter sticks passed the wall will be added to the rafter length. Rafter run outer wall this should be measured starting from the center of the roof span and then extending to the very edge of the exterior wall. Usually 400 450 or 600mm but any value can be used up to 610mm max.

Span calculator for wood joists and rafters also available for the. 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. Rafter length calculator calculate the length of a rafter from the roof slope ratio of inches per foot and a building width measurement. Easy rafters is designed to calculate shed roofs that are framed to a ledger board nailed against a vertical wall not freestanding shed roofs supported by walls at both ends.

Spacing in exterior exposure. Rise and run means that a 6 12 pitch roof has 6 of rise vertical for each foot of run horizontal. Number of rafters and their dimensions. Typical tiled roof with plasterboard on underside of rafters.

Rafter span tables use these tables to determine lengths sizes and spacing of rafters based on a variety of factors such as species load grade spacing and pitch. Kalk pro is online shed roof calculator single slope pent roof skillion program determines basic material consumption for roof building roofing underlayment volume all quantitative and dimensional values of the shed pent roof truss system. Includes result for hip valley factor slope factor and the roof slope in degrees. Here the number is 1166 66 inches.

Dimensions and area of a shed roof materials quantity for it the roof angle pitch. This is the distance between rafter centres. Visit the roof framing page for more information on cutting roof rafters and visit the roof pitch calculator for determining rafter lengths based on rise and run. Shed roof a shed roof slopes in one direction only.

Here the number is 941 86 inches. Rafter length using pitch v r 2 sqrt 1 p 2 where v overhang r roof span p pitch use our online rafter length calculator to quickly compute the length of the shed roof rafter by entering the measurements of overhead length of roof span pitch or angle. In other words if there is a 1 1 2 ridge board nailed into the wall and the width of the lean to is 96 then the run will be 94 1 2 96 1 1 2 94 1 2.