Steel Bar Joist Designations

Our joists and girders are engineered and manufactured in accordance with the specifications of the steel joist institute.

Steel bar joist designations. Typically used in non residential construction steel joists and joist girders provide an economical system for supporting floors and roofs. Steel joist institute everything for steel joists. The main function of an owsj is to provide direct support for roof or floor deck and to transfer the load imposed on the deck to the structural frame i e. All vulcraft joists and joist girders are.

K bar joists designed for use with lighter loads and are typical in roof design. New millennium specialists can provide early design and engineering assistance to help your. The ends of lh and dlh series joists must extend a distance of no less than 4 over a steel support see figure 4. 127 sji standard specifications k series.

An alternate method of specifying a standard k series lh series or dlh series joist shall be permitted by providing the designation in a load load sequence. Discover the easiest way to specify steel joists and joist girders. Standard specification for general requirements for rolled structural steel bars plates shapes and sheet piling. For the larger joist designations.

The steel joist institute sji a nonprofit organization of active joist manufacturers and other organizations and companies connected to the industry was founded in 1928 to address the need for uniform joist standards within the industry. With a diverse array of designations steel joists are able to span up to 144 and range in depth from 8 to 120. Steel joists joist girders. Open web steel joists are an engineered truss like construction component used to support loads over short and long spans alike.

The steel joist or joist girder designation depth shall be the depth at mid span. The standard load tables found in the steel joist institute s specification use stan dard designations that define the joist depth a series designation the total load capacity live load. The k series standard joist designations listed in the following standard load tables shall support the.