Shed Roof Beam Span Calculator

Enter this measurement into the calculator and select a roof pitch and the length of the rafter will automatically returned along with the rise.

Shed roof beam span calculator.

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. Rise and run means that a 6 12 pitch roof has 6 of rise vertical for each foot of run horizontal. 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. This calculator helps you make the rafters of the suitable sizes required for your roofing.

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. It has been my experience to never use a beam smaller than a two ply 2 x 8. Use the span tables below to determine allowable lengths of joists and rafters based on size and standard design loads. You can also use the wood beam calculator from the american wood council website to determine maximum rafter and joist lengths.

Ridge beams and boards modern raising ceiling joists jlc technical steico construction roof rafter collar tie calculations structural ridge beamtimber steel framing manual single span ridge beamglulam ridge beam span table elcho. If there is are any questions about anything else then you should contact your supplier or an engineer. For heavy roofs or in areas with substantial snowfall or winds call your local building department for code requirements. Rafter is a sloping beam usually wood that supports a pitched roof.

Span calculator for wood joists and rafters also available for the android os. Also available for the android os.