3 ways to optimize multi-story construction

Thin-slab floors for commercial and residential applications

Learn about the three distinct long-span composite floor systems available to optimize mid- to high-rise multi-story construction. This full-color guide explains the key features and benefits of each system.

Meet span requirements and uniquely manage floor height while providing fire, vibration and sound control. Gain the insights you need to optimize your application, accelerate the construction timeline and reduce costs on your next multi-story project.

Long-Span Composite Systems Guide

See the differences choice can make

Contact a system specialist

Our specialists are ready to discuss your next multi-story project and help you determine the best solution for your application.

Market segments and applications

Inspiring structural steel design and engineering solutions from a wide range of market segments and applications.


From sweeping interiors at the nation’s biggest air travel hubs to functional rain canopies at outdoor train and bus stops, steel is the ideal material for transportation projects.


Accommodating open space designs with needed flexibility and integrating seamlessly with branded architectural visions makes steel the right buy for retail construction.


Structural steel makes the grade by providing safe and cost-effective environments conducive to learning, while mitigating the acoustics of eager students.

Large Venue

Creating open and artful spaces for fine performances with large gatherings, and scoring big with sports fans at major stadiums, structural steel wins every time.


Composite steel deck creates open spans for life-saving equipment, while controlling vibrations that can interfere with surgical procedures in healthcare facilities.


Engineering and design breakthroughs contribute to aesthetics and performance with structural steel deck solutions that maximize overall space efficiency.


With new construction projects optimized and historic spaces revitalized, structural steel is reshaping today’s office development projects beautifully and efficiently.


Design efficiency is at work in the steel joists, Joist Girders, and deck that provide the open spans and MEP integration of today’s warehouses and wide-open-industrial spaces.

New Millennium Building Systems ... your resource for cost- and performance-improvement knowledge.

© 2024 New Millennium Building Systems, LLC All rights reserved.