120 Clay

120 Clay

Photos by Casey Braunger, Ankrom Moisan Architects

“One of the most energy efficient and low carbon emissive buildings in Portland.”

Noel Johnson, Vice President of Killian Pacific


Room to Grow: 120 Clay’s open floor space attracts high-tech office tenant

Portland’s Central Eastside features an intriguing commercial office facility that appears to be two separate buildings, but is designed as one. 120 Clay has a centrally located lobby flanked with a two-story office section and a three-story office section. The east building section has noticeable full height glass facades revealing the interior timber framed office space. The west wing is a three-level structure with standard size window punch outs in the brick facades. 120 Clay’s flexible, expansive floor layouts are conducive to the high-tech tenant’s business strategy to lease more office space when staff capacity grows.

DCI Engineers was the Engineer of Record for this design-build project. The project team designed three primary framing schemes to accomplish the client’s vision of a modern workspace with the two-building-sections-in-one-structure look. 120 Clay comprises of steel and wood columns and beams; floor systems of concrete over nail laminated timber (NLT) or concrete over metal deck; and wood trusses with steel tension rods. The building also includes two lateral systems: concrete core walls and special concentric braced frames.

Project Highlights

  • Indoor skybridges cross the building’s centrally located lobby.
  • Amenities include extensive bicycle parking, 11,682-sf green roof, and below-grade parking level with 85 stalls.
  • Atriums bring in natural light.
  • Large floor plates span up to 30,000-sf.
  • Timber framed building responds to Oregon governor’s executive order to utilize state timber resources.
Portland, Oregon
Square Feet: 
Primary Material: 
Unreinforced Masonry
Mass Timber

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