TFG Companies

Eclipse Engineering


Eclipse Engineering is a structural engineering company that was founded in 1998. We have six offices: our headquarters in Missoula, MT; Whitefish, MT; Spokane, WA; Bend, OR; Portland, OR; & Denver, CO. Eclipse is licensed in all 50 states, as well as being licensed in eight Canadian provinces.

Our company core values are centered around communication and flexibility. We understand that everyone from suppliers to designers have a unique approach to timber framing and design. Our goal is to help you achieve success doing what you do best. We want to work with you to fulfill your vision with quick turn-around times, reasonable fees, and years of mass timber experience throughout our company. We take pride in our thoughtful processes and creative solutions! 


Our Work - 

  • Log and Timber 
  • CLT
  • Residential 
  • Commercial
  • Public Sectors
  • Hospitality
  • Medical 
  • Green Design
  • Seismic Retrofit
  • Educational

Our services include:

  • Structural Engineering Design
  • Research and Development 
  • Structural Drafting (CAD & Revit)
  • Material Storage


2140 SW Jefferson St, Suite 200
Portland, OR 97201
United States




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