Setting Standards.
Advancing Designs.

Featured Resources

Webinar: Part 1: Evaluation and Modification of Open Web Steel Joists and Joist Girders

Join SJI for our live webinar on Wednesday, October 22, 3:00-4:30 p.m. ET.

UPDATED | Technical Digest 9 Handling and Erection of Steel Joists and Joist Girders

The latest Technical Digest 9 includes a new chapter on erection engineering, expansions on loading and shippings joists as well as details on joist products, including special-configuration joists and more.

2025 Standards Review

The Steel Joist Institute has initiated revisions of SJI 100-2020 and SJI 200-2015,  proceeding through the ANSI process to complete these revisions.

Identify Existing Joists

Need help identifying existing joists in a building structure? SJI will review our extensive files to find joists similar to those you have located in an older building..

Featured Projects

Seaport Office Building

Commercial, Office

The Class A Office building in Boston, MA was completed in 2018 and features a total of 400,000 sq ft. The building is a Green Building LEED Certified Platinum featuring 17 floors with retail space on the 1st and 2nd floors.

Child Care Center

Commercial

The 50,000sf ESPN Child Care Center achieves a minimum LEED Silver Certification with strategies including use of local, natural materials, appropriate building orientation and lots of daylighting and views.

Steel & Stainless Steel Process Facility

Industrial, Manufacturing Buildings

One of the most interesting facts of the project was the sheer size. Steel tonnage totals are as follows: Roof Joists = 1,227 tons; joist girders = 2,668 tons; wall joist = 1,045 tons; and joist bridging = 540 tons.