Steel Roof Joist Span Table

Prostud limiting height charts new clarkdietrich itools structural stud lookup tool interior wall heights w structural framing interior.

Steel roof joist span table.

T radeready s teel joist span tables are to be utilized in conjunction with the notes below. Calculated allowable properties are based upon aisi s100 07 north american specification for the design of cold formed steel structural members. All vulcraft joists and joist girders are designed and manufactured in accordance to the exacting specifications of the steel joist institute. In depth catalogs feature the latest information and are available in convenient interactive pdf format.

Each load table was accompanied by notes and instructions covering assumptions and other important information. Spans are based upon continuous support of compression flange over the full length of the joist. For two equal spans the listed span is the center to center distance from either end to the center support with the joist continuous over the center support. Table r802 4 1 ceiling joist spans for common lumber species uninhabitable attics without storage live load 10 psf l δ 240.

These joists are typically used in roof. The k and kcs joists are used for shorter span conditions where lighter loads are required. Rafter spans can be extended slightly beyond what the rafter tables suggest when there is a cantelever extending beyond the supporting wall. For an in depth review of all of this information the sji suggests the current compilation of all years specifications and load tables 90 years of open web steel joist construction available on this site at 90 years.

S pan table notes. Interior framing use iprostud in clarkdietrich itools to quickly lookup the interior framing system you need. Joists are separated by type and designated by letters. Typically used in non residential construction steel joists and joist girders provide an economical system for supporting floors and roofs.

Span calculator for wood joists and rafters also available for the android os. K kcs lh dlh and slh. Load table pdfs are best viewed in adobe acrobat reader. Dietrich metal framing shall in no way be deemed to assume any professional responsibility and hereby disclaims any and all such liability or obligation.

Allowable limiting heights spans contact clarkdietrich technical services at 888 437 3244 for any questions on tables below. 1 spans are based on continuous lateral support of the compression flange. Spans for ceiling joists shall be in accordance with tables r802 4 1 and r802 4 2. Also available for the android os.

For other grades and species and for other loading conditions refer to the awc stjr.