Patio Roof Spans

These are specific to the area where you live.

Patio roof spans.

You can determine the allowable spans of different rafter sizes and spacing from the span calculator by the american wood council. Ceiling joist span use this table to determine the maximum lengths of ceiling joists based on species of lumber joist spacing and joist size. That depends on the design load of your roof and the span of your rafters. Maximum rafter spans for a patio roof.

Patio width is no less than 2 1m and length is no less than 3 5m. Single ply beam solution professional deck builder. If you move up to 4 by 8 you re usually allowed to span up to 10 feet between posts. Also available for the android os.

A 4 by 10 can usually span up to 12 feet between posts. In the example the beam spans the 10 foot width of the roof. In general the maximum span for a 4 by 6 beam is 6 feet between 4 by 4 posts. F stands for the beam s fiber strength in bending which depends on the species of wood.

The smallest beams for patio covers are typically 4 by 6. Patio cover plans build your or deck. In areas with mild climates patio roofs are generally designed for loads of 30 psf pounds per square foot. Please plete the items below and read general notes.

Patio roof beam calculator. For heavy roofs or in areas with substantial snowfall or winds call your local building department for code requirements. The number of supports beams or purlins affects the allowable span length. Span calculator for wood joists and rafters also available for the android os.

Patio roof beam calculator roof beam span calculator jackdecor co timber trusses beams patio covers and decks santa clarita christopher french beam span table douglas fir elijahhome co patio roof. Patio height hc must always be less than roof height h. The tables below give maximum spans for rafters and beams. To determine the design load of your roof consult your local building code.

Rafter spans can be extended slightly beyond what the rafter tables suggest when there is a cantelever extending beyond the supporting wall. L stands for the span of the beam in feet. The total load is 4 000 pounds. Patio roof maximum beam rafter spans home.