Patio Cover Patio Roof Beam Span Table

Choose the appropriate span table.

Patio cover patio roof beam span table.

Use the span tables below to determine allowable lengths of joists and rafters based on size and standard design loads. Build your patio cover or deck designing with roof rafter span tables board can span 16 ft for a wall pergola patio roof maximum beam rafter spanspatio roof beam calculatorpatio coversplease plete. Jan 15 2017 a simple buying guide for beams and rafters that support patio roofs. In areas with mild climates patio roofs are generally designed for loads of 30 psf pounds per square foot.

The tables below give maximum spans for rafters and beams. You can also use the wood beam calculator from the american wood council website to determine maximum rafter and joist lengths. The smallest beams for patio covers are typically 4 by 6. 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.

The figures are based on quality materials. For heavy roofs or in areas with substantial snowfall or winds call your local building department for code requirements. Includes size and spacing tables for load bearing and links to related articles. For free standing canopies of any height up to 3 2m use the span table marked below with an asterisk.

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