New Millennium Building Systems
Steel Joist

Build a better steel experience...

Steel Joist Institute, ANSI, Steel Deck Institute SJI ANSI SDI

Specify New Millennium. We're your nationwide resource for structural steel building solutions. We have the capacity to meet or accelerate your project timeline. New Millennium is a division of Steel Dynamics, one of the largest steel producers in America. Make us your single source for cost- and performance-optimized structural steel project delivery.


  • Wide range of engineered structural steel solutions
  • 3D BIM steel joist design collaboration expertise
  • Reduce clashes, delays and related supply costs
  • Easier, friendlier and faster RFI process
  • Flexible delivery options: staged and JIT

Steel Dynamics, Inc

New Millennium Building Systems is a wholly owned subsidiary of Steel Dynamics Inc.

Flexbile to the Finish