Steel Joist Institute (SJI)

The Steel Joist Institute (SJI) is a professional organization that develops and maintains standards for steel joists and steel roof and floor framing systems. Its goal is to ensure safety, quality, and consistency in the design, manufacturing, and use of steel joists in construction projects. By creating technical guidelines and specifications, SJI helps engineers, architects, and builders select appropriate steel joists for various structural needs, promoting reliable and efficient building practices.