Metal Patio Roof Beam Span Table

Colorbeam light structural steel beams provide an ideal roof framing system for all outdoor home improvement projects such as patios carports verandahs and awnings.

Metal patio roof beam span table.

The total load is 4 000 pounds. Span tables are based on patio height and average roof heights as specified in the empty under and blocked under selection tables. F stands for the beam s fiber strength in bending which depends on the species of wood. Average roof height between 3m and 6 5m 3m h 6 5m.

If you move up to 4 by 8 you re usually allowed to span up to 10 feet between posts. The overlapping sections of the beam provide extra rigidity allowing longer spans between supports. A 4 by 10 can usually span up to 12 feet between posts. 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.

The figures are based on quality materials. In the example the beam spans the 10 foot width of the roof. The smallest beams for patio covers are typically 4 by 6. In general the maximum span for a 4 by 6 beam is 6 feet between 4 by 4 posts.

For heavy roofs or in areas with substantial snowfall or winds call your local building department for code requirements. 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. Maximum patio height hc is 3 2m. The tables below give maximum spans for rafters and beams.

In areas with mild climates patio roofs are generally designed for loads of 30 psf pounds per square foot. For heights outside these ranges contact stramit for further information. For the initial calculation f can be estimated at 1 000. Attached flat roof 1ao page14.

Visit the roof framing page for more information on cutting roof rafters and visit the roof pitch calculator for determining rafter lengths based on rise and run. Fill in the parts of the formula that are already known. 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.