Roof Support Beam Span Calculator

The values displayed in the resulting table will show nine possible maximum beam spans for the supported length selected.

Roof support beam span calculator. These nine beam spans are for built up beams made up of either 2x8 2x10 or 2x12 dimensional lumber nailed together as either 3 4 or 5 ply beams. If there is are any questions about anything else then you should contact your supplier or an engineer. Window door garage door headers supporting roof loads only. F stands for the beam s fiber strength in bending which depends on the species of wood.

This calculator matches up with 90 of the applications in the 2012 international residential code book. It has been my experience to never use a beam smaller than a two ply 2 x 8. Fill in the parts of the formula that are already known. For the initial calculation f can be estimated at 1 000.

L stands for the span of the beam in feet. Diy pergola guide measuring pergola dimensions learn measuring pergola dimensions learn pergola beam span calculator span tables for 8 x12 x24 western red. For heavy roofs or in areas with substantial snowfall or winds call your local building department for code requirements. You can also use the wood beam calculator from the american wood council website to determine maximum rafter and joist lengths.

Structural ridge beam span calculator posted on april 7 2020 by sandra open source wood find tools 4101 8 01 roof ceiling construction single span ridge beam ridge beams and boards modern technical steico construction. Patio roof maximum beam rafter spans beamsmeasuring pergola dimensions learn the standardwhat is max distance between posts using 2x12x20 foot beams for apergola beam span calculator pergolacanopyideas pergolayou measuring pergola. Also available for the android os. Span calculator for wood joists and rafters also available for the android os.

Maximum rafter spans for a patio roof in areas with mild climates patio roofs are generally designed for loads of 30 psf pounds per square foot. In the example the beam spans the 10 foot width of the roof. For example a 3 ply 2x8 beam would use three 2x8s nailed together side by side. Window door garage door headers supporting roof wall floor loads.

Most interior beams need to include the roof load. 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.