Structural Steel Trivia: The Greenest Building Material

Long spans, curved steel members and abundant natural light highlight the Anaheim Regional Transportation Intermodal Center in Anaheim, Calif. The project won a 2015 AISC IDEAS2 Award and achieved LEED Platinum certification. (Photo: Thornton Tomasetti, Inc.)

Trivia Question:

In recognition of Earth Day last week and structural steel’s sustainable attributes (which include the highest recycled content and highest recycling rate of any building framing material), our April trivia question is: The majority of the recycled steel in domestically produced structural steel comes from which product?

A. Composite floor decking                                        
B. Appliances
C. Automobiles                                                            
D. Airplanes


The correct answer is: C. Automobiles. Congratulations to our winners! They are: Jeff Rodeheaver, detailing manager at SWF Industrial, Inc., Wrightsville, Pa., and Nep Viajar, a civil/structural engineer at Fluor Corp., Houston.

Environmental Product Declarations for fabricated hot-rolled structural sections, fabricated steel plate and fabricated hollow structural sections (HSS) can be found at You can learn more about steel and sustainability at