Pergola Patio Roof Beam Span Table

A 4 by 10 can usually span up to 12 feet between posts.

Pergola patio roof beam span table.

In general the maximum span for a 4 by 6 beam is 6 feet between 4 by 4 posts. 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.

They are also widely used for institutional shade applications such as covered walkways and lunch areas because of their durable low maintenance finish. Pergola beam spans wind classification n1 n2 roof load width rlw 1800 2400 3000. Average roof height h patio height hc 3 h 4 4 h 5 5 h 6 5 hc 2 3 k k k 2 4 hc 2 8 k k k 2 8 hc 3 2 k k k design notes span tables are based on patio height and average roof heights as specified in the empty under and blocked under selection tables. 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.

Use the span tables below to determine allowable lengths of joists and rafters based on size and standard design loads. Refer to general notes for information that is relevant for all span tables. For design parameters refer to figure 7 26 as1684 2 and 3. Diy pergola guide measuring pergola dimensions learn measuring pergola dimensions learn pergola beam span calculator span tables for 8 x12 x24 western red.

Colorbeam light structural steel beams provide an ideal roof framing system for all outdoor home improvement projects such as patios carports verandahs and awnings. Where rafters are equal to or exceed four times their breath blocking should be used to reduce member distortion. 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.

Table 2l pergola or carport beams wind classifications n1 n2 n3 and c1 member size roof load width 1500 3000 4500 6000 1500 3000 4500 6000 maximum beam span mm single span continuous span. The figures are based on quality materials. In areas with mild climates patio roofs are generally designed for loads of 30 psf pounds per square foot. Includes size and spacing tables for load bearing and links to related articles.