Patio Cover Patio Roof Beam Span Table

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.

Patio cover patio roof beam span table.

Span tables use the span tables below to determine allowable lengths of joists and rafters based on size and standard design loads. In general the maximum span for a 4 by 6 beam is 6 feet between 4 by 4 posts. 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.

The smallest beams for patio covers are typically 4 by 6. Beam span table douglas fir elijahhome co garage door header size benjaminremodeling co roofing beam spans pitch roof span tables patio cover kits pre designed covers patio roof beam calculator. You can also use the wood beam calculator from the american wood council website to determine maximum rafter and joist lengths. Jan 15 2017 a simple buying guide for beams and rafters that support patio roofs.

Includes size and spacing tables for load bearing and links to related articles. If you move up to 4 by 8 you re usually allowed to span up to 10 feet between posts. For heavy roofs or in areas with substantial snowfall or winds call your local building department for code requirements. Cellular beams design guide pdf free floor joist spantables to set your joists enercalc version 5 8 non cur retired patio roof maximum beam rafter spans with images experiments on long span cold formed steel single c section portal floor joist spantables to set your joists.

A 4 by 10 can usually span up to 12 feet between posts. The cover will consist of either a ledger board attached to the exterior wall pending structural review or beams on the new patio slab leading to a 15 span away from the house to 6x6 posts on galvanized anchor brackets at the other end of the slab.