Forty minutes northwest of Chicago, a new fitness facility transformed what could have been commodity ductwork into a captivating “diamond.” The owners of IT Gym in Hoffman Estates wanted to add a unique look at the fitness facility, a visual focal point that would echo their customized training regimens. They fabricated the network of HVAC vents and returns from copper, an unconventional choice that not only helped set the interiors apart from other gyms but also illustrated the formability of copper sheet and coil.