Patio Roof Spans

These are specific to the area where you live.

Patio roof spans.

Patio width is no less than 2 1m and length is no less than 3 5m. Patio cover plans build your or deck. F stands for the beam s fiber strength in bending which depends on the species of wood. For heavy roofs or in areas with substantial snowfall or winds call your local building department for code requirements.

Maximum roof slope is 5 for monoslope and 22 5 for pitched roof. Please plete the items below and read general notes. Patio height hc must always be less than roof height h. That depends on the design load of your roof and the span of your rafters.

In general the maximum span for a 4 by 6 beam is 6 feet between 4 by 4 posts. L stands for the span of the beam in feet. The tables below give maximum spans for rafters and beams. 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.

If you move up to 4 by 8 you re usually allowed to span up to 10 feet between posts. The number of supports beams or purlins affects the allowable span length. The total load is 4 000 pounds. Span tables for canada building construction diy chatroom.

To determine the design load of your roof consult your local building code. You can determine the allowable spans of different rafter sizes and spacing from the span calculator by the american wood council. Also available for the android os. Rafter spans can be extended slightly beyond what the rafter tables suggest when there is a cantelever extending beyond the supporting wall.

For example in the rafter span table below the highlighted cell in the 40 live load table indicates that 2 x 8 southern yellow pine joists that have a grade of 2 that are spaced 24 apart can have a maximum span of 10 feet 3 inches 10 3 if designing for a live load of 40 lbs ft 2. Single ply beam solution professional deck builder. Patio roof beam calculator. Span calculator for wood joists and rafters also available for the android os.

The smallest beams for patio covers are typically 4 by 6. Ceiling joist span use this table to determine the maximum lengths of ceiling joists based on species of lumber joist spacing and joist size. Patio roof maximum beam rafter spans home. A 4 by 10 can usually span up to 12 feet between posts.