Joist & Decking


Joist & Decking

New Millennium Building Systems, a wholly-owned subsidiary of Steel Dynamics, fabricates steel building components for use primarily in non-residential construction—including commercial, industrial, and government buildings. New Millennium's 8 locations are in Indiana, Nevada, Florida, Virginia, Arkansas, Mexico, Tennessee, and Arizona.

Joists, girders and trusses

These welded-steel products are used to support a building’s roof and floors. They are custom engineered to suit the design of each building. In addition to traditional designs, we produce bowstring, arched, scissor, double-pitched, and single-pitched joists.


Decking is made by forming and coating sheet steel. It is installed above the joists to serve as a base of support for either a roof or a floor. For floors, concrete is typically poured over the decking. New Millennium produces roof, form, and composite floor decking, as well as specialty profiles (dovetail, deep deck, and bridge deck).

To learn more about New Millennium Building Systems, visit the website here.