New Millennium Building Systems


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

LEED® Green Building Rating System™

The LEED (Leadership in Energy & Environmental Design) Green Building Rating System™ is a voluntary, consensus-based standard to support and certify successful green building design, construction and operations. LEED certification is available for all building types including new construction and major renovation, schools, healthcare, retail, homes, neighborhoods, core and shell, commercial interiors and even existing buildings.

What’s driving green building? The growth of green building is being expedited by three factors:


  • unprecedented level of government initiatives;

  • heightened residential demand for green construction; and

  • improvements in sustainable materials.


Why build green? Green buildings consume less energy and fewer resources. In comparison to the average commercial building:


  • Green buildings consume 26% less energy

  • Green buildings have 13% lower maintenance costs

  • Green buildings have 27% higher occupant satisfaction

  • Green buildings have 33% less greenhouse gas emissions


Source: GSA Public Buildings Service (2008). Assessing Green Building Performance: A Post Occupancy Evaluation of 12 GSA Building.

The LEED certification system is organized into five environmental categories: Sustainable Sites (SS), Water Efficiency (WE), Energy and Atmosphere (EA), Materials and Resources (MR) and Indoor Environmental Quality (IEQ). An additional category, Innovation in Design (ID), addresses sustainable building expertise as well as design measures not covered under the five environmental categories. The number of points the project earns determines the level of LEED Certification the project receives.


LEED & New Millennium Building Systems

Recycled Content

New Millennium steel joists and metal decking products are fabricated from steel manufactured at mini-mills using scrap steel. Therefore, our product can be used towards points under the Materials and Resources Credit 4 which covers Recycled Content.

Under MR Credit 4 you can obtain up to 2 points towards LEED certification if you use materials with recycled content such that the postconsumer recycled content plus 1/2 of the preconsumer content constitutes at least 10% (1 point) or 20% (2 points), based on cost, of the total value of the materials in the project.

Please see below for the current “recycled content” information from each of our facilities.



Regional Materials

Depending on the jobsite location, New Millennium joists and deck products may be considered regional materials and count towards points under the Materials and Resources Credit 5.

Under MR Credit 5, you can obtain up to 2 points towards LEED certification if using building materials or products that have been extracted, harvested, or recovered, as well as manufactured within 500 miles of the project for a minimum of 10% (1 point) or 20% (2 points), based on cost, of the total materials value. If only a fraction of a product or material is extracted, harvested or recovered and manufactured locally, then that percentage (by weight) can still contribute to the regional value.

New Millennium can provide jobsite specific information related to the Regional Materials credit upon request. Please talk to your New Millennium sales contact, or contact:

Eric McClees
Environmental Manager

Steel Dynamics, Inc

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