Metal Roof Joist Span Table

Table notes spans are based upon continuous support of compression flange over the full length of the joist.

Metal roof joist span table.

Of bearings and is based on uniformly loaded joists. Allowable limiting heights spans contact clarkdietrich technical services at 888 437 3244 for any questions on tables below. Rafter spans can be extended slightly beyond what the rafter tables suggest when there is a cantelever extending beyond the supporting wall. Dietrich metal framing shall in no way be deemed to assume any professional responsibility and hereby disclaims any and all such liability or obligation.

Load table pdfs are best viewed in adobe acrobat reader. Span calculator for wood joists and rafters also available for the android os. Steel joists joist girders. Ceiling joist span use this table to determine the maximum lengths of ceiling joists based on species of lumber joist spacing and joist size.

Also available for the android os. Open web steel joists are an engineered truss like construction component used to support loads over short and long spans alike. The spans are based on simple span joists. The minimum bearing length is 1 spans values in bold indicate that web stiffeners are required at the osb end panel.

For example in the rafter span table below the highlighted cell in the 40 live load table indicates that 2 x 8 southern yellow pine joists that have a grade of 2 that are spaced 24 apart can have a maximum span of 10 feet 3 inches 10 3 if designing for a live load of 40 lbs ft 2. In depth catalogs feature the latest information and are available in convenient interactive pdf format. Download our steel joists and steel deck load tables to facilitate the design of your next project featuring new millennium products. Prostud limiting height charts new clarkdietrich itools structural stud lookup tool interior wall heights w structural framing interior.

Calculated allowable properties are based upon aisi s100 07 north american specification for the design of cold formed steel structural members. For two equal spans the listed span is the center to center distance from either end to the center support. 1 spans are based on continuous lateral support of the compression flange. S pan table notes.

Typically used in non residential construction steel joists and joist girders provide an economical system for supporting floors and roofs.