Joist Span Patio Roof Beam Span Table

Trus joist tji joist specifier s guide tj 4000 july 2019.

Joist span patio roof beam span table.

When supporting joists that span 12 feet with no overhang beyond the beam a double ply beam can span in feet a value equal to its depth in inches. Includes size and spacing tables for load bearing and links to related articles. This span table is to the format and methodology given in bs 5268 7 2. Deck roof beam span table.

Adjacent building height 4 8 m w maximum allowable span mm n1 n2 n3 n4 n5 1500 3300 3300 2800 2500 2200 1800 3100 2700 2300 2100 2100 3000 2600 2300 2000. Span tables for case 1. Fire safe construction 3 floor performance and tj pro rating 4 5 section 1. 9 16 tji joists design properties 6 floor span and load tables 7 8 tips for preventing floor noise 8 allowable holes 9 cantilevers 10 11 roof span and load tables 12 13 framing.

Posted on april 20. In areas with mild climates patio roofs are generally designed for loads of 30 psf pounds per square foot. Click on a span to generate a full calculation you can adjust the exact span. Dimensional lumber deck beam span chart.

For heavy roofs or in areas with substantial snowfall or winds call your local building department for code requirements. Permissible clear spans for flat roof joists to bs 5268 7 2 find the column for your dead load and spacing and the row for your timber size to find the permissible clear span in metres. The tables below give maximum spans for rafters and beams. Jan 15 2017 a simple buying guide for beams and rafters that support patio roofs.

Ceiling joist span use this table to determine the maximum lengths of ceiling joists based on species of lumber joist spacing and joist size. Maximum building height 4 8 m single span up to 600mm overhang 100 x 50 mm alyspan beam single span max. The figures are based on quality materials. Treated glulam beams wood patio covered beam cover span unique open porches design exterior wall headers jlc deck joist size span tables by alter eagle decks deck design determining needed materials.

Rafter spans can be extended slightly beyond what the rafter tables suggest when there is a cantelever extending beyond the supporting wall. Posts these span tables are designed for a minimum post size of 50 x 50 x 2 5mm up to a maximum height of 3 0m. Wood patio covered beam cover span awesome roof design ideas. Flat roof span tables allow for a maximum roof pitch of 5º.

A 2 2x10 can span 10 feet and so on. A double 2x12 beam can span 12 feet.