New Millennium Building Systems

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Steel Joist Institute, ANSI, Steel Deck Institute Steel Joist Institute ANSI Steel Deck Institute

Specification catalogs for New Millennium Building Systems

In order to facilitate the specification, ordering, and use of steel joists, metal decking, and FreeSpan™ products, New Millennium is proud to offer a range of options for you. You can always order printed copies of our catalogs. For the easiest way to specify steel joists, joist girders, and metal decking, click here to use our digital specification tools.


For those who prefer to use a PDF of our catalogs, we provide the following:


Steel Joists and Joist Girders (250 pages)

  • Fully updated to SJI 43rd Edition Standard Specifications
  • Load and weight tables for K, LH, DLH-Series and Joist Girders
  • Economical Design Guide load tables for lowest cost joist selection


Click below to download catalog by section:

Steel joists and joist girders catalog

Special Profile Steel Joists Catalog (105 pages)

Click below to download full catalog:


Click below to download catalog by section:

Special profile steel joists catalog

Steel Roof and Floor Decking (111 pages)

  • Roof Deck
  • Form Deck
  • Composite Deck
  • Diaphragm Design
  • Steel Deck Institute Code of Standard Practice


Click below to download catalog by section:

Steel decking catalog

Steel Dynamics, Inc

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