Pergola Roof Beam Spans

Generally speaking though it is recommended that for a 12 span you will need at least 2 x 8 treated or hardwood timber or more.

Pergola roof beam spans.

Patio roof maximum beam rafter spans what is max distance between posts pergola main beams span building span tables for 8 x12 x24 western red pergola beam span calculator. A 4 by 10 can usually span up to 12 feet between posts. Patio roof beam calculator. 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.

Go much above that unsupported and you re looking at a reinforced beam. There seems to be no definitive beam spans for pergolas unfortunately. Maximum rafter spans for a patio roof in areas with mild climates patio roofs are generally designed for loads of 30 psf pounds per square foot. Three thirty seconds of an inch or 3 32.

In general the maximum span for a 4 by 6 beam is 6 feet between 4 by 4 posts. Across the beams the rafters will be 2 x6 s on 8 centers which should be sufficient given their 4 6 spans. R cb150 16 beam span table used w 3600 width of frame rafter span χ 6410 fascia beam span the cb150 16 beam achieves the 6000mm span for the fascia beam and can be used for the rafters. So the rafter spacing should be 15 inches and 29 32 of an inch for absolutely even spacing.

Attached flat roof 1ao page14. An essential part of planning a patio roof or gazebo project is determining the number size and spacing of rafters beams and posts according to the loads they will carry. 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. If you move up to 4 by 8 you re usually allowed to span up to 10 feet between posts.

The only hard and fast rule of rafter spacing. Measuring pergola dimensions learn the standard. Span tables for 8 x12 x24 western red cedar this pergola. What kind of board can span 16 ft for a wall pergola home patio cover plans build your or deck patio roof beam calculator cantilevers in the 2016 code professional deck builder patio cover plans build your or deck.