Joist Span Patio Roof Beam Span Table

Deck roof beam span table.

Joist span patio roof beam span table.

Trus joist tji joist specifier s guide tj 4000 july 2019. 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. Dimensional lumber deck beam span chart. 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.

Jan 15 2017 a simple buying guide for beams and rafters that support patio roofs. Roof pitch use recommended minimum roof pitches as specified by roof sheet supplier. Click on a span to generate a full calculation you can adjust the exact span. 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.

Fire safe construction 3 floor performance and tj pro rating 4 5 section 1. Wood patio covered beam cover span awesome roof design ideas. This span table is to the format and methodology given in bs 5268 7 2. Span tables for case 1.

The numbers in gray indicate the distance between the support posts. Rafter spans can be extended slightly beyond what the rafter tables suggest when there is a cantelever extending beyond the supporting wall. Includes size and spacing tables for load bearing and links to related articles. In areas with mild climates patio roofs are generally designed for loads of 30 psf pounds per square foot.

For heavy roofs or in areas with substantial snowfall or winds call your local building department for code requirements. 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. Maximum building height 4 8 m single span up to 600mm overhang 100 x 50 mm alyspan beam single span max. The tables below give maximum spans for rafters and beams.

A double 2x12 beam can span 12 feet. Ceiling joist span use this table to determine the maximum lengths of ceiling joists based on species of lumber joist spacing and joist size. A 2 2x10 can span 10 feet and so on. The figures are based on quality materials.

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. 600 mm overhang max.