DIA Airport Expansions and Renovations

Salas O’Brien created seamless cold-formed steel (CFS) designs for the Denver International Airport’s A-train terminal and Westin Hotel in the South Terminal, expansions of Concourses B East and C East, and renovations to the Great Hall. For the Concourse expansions, BIM technology was employed to design models of the CFS and CFS/Steel hybrid pre-fabricated panels tailored to existing and new infrastructure. The successful execution of this system minimized the CFS trade’s envelope impact on airport operations and allowed faster enclosure.

For Westin Hotel’s Sky Lobby at DIA, our CFS expertise enabled us to tackle the challenge of structurally sound supports for a curved barrel-vaulted ceiling made up of glass fiber reinforced gypsum panels located inches away from a 60-foot cantilevered steel structure that deflects up to six inches in windy conditions – all while achieving the architect’s desired look.



Completion Year


Project Partners

Spacecon Specialty Contractors, RK Steel, Four Star Drywall Select Prefab, RK Mechanical

Construction Cost

$4 billion