Metal Roof Joist Span Table

Calculated allowable properties are based upon aisi s100 07 north american specification for the design of cold formed steel structural members.

Metal roof joist span table.

Open web steel joists are an engineered truss like construction component used to support loads over short and long spans alike. Rafter spans can be extended slightly beyond what the rafter tables suggest when there is a cantelever extending beyond the supporting wall. The maximum span is measured o c. T radeready s teel joist span tables are to be utilized in conjunction with the notes below.

The minimum bearing length is 1 spans values in bold indicate that web stiffeners are required at the osb end panel. Allowable limiting heights spans contact clarkdietrich technical services at 888 437 3244 for any questions on tables below. For two equal spans the listed span is the center to center distance from either end to the center support. Of bearings and is based on uniformly loaded joists.

The spans are based on simple span joists. 1 spans are based on continuous lateral support of the compression flange. In depth catalogs feature the latest information and are available in convenient interactive pdf format. Load table pdfs are best viewed in adobe acrobat reader.

S pan table notes. 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. Steel joists joist girders.

Dietrich metal framing shall in no way be deemed to assume any professional responsibility and hereby disclaims any and all such liability or obligation. Ceiling joist span use this table to determine the maximum lengths of ceiling joists based on species of lumber joist spacing and joist size. Table notes spans are based upon continuous support of compression flange over the full length of the joist. 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.

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