Nelson Treehouse and Supply

Structural Engineering for Treehouses

Rafn Construction, Chris Imbeau

03.31.17

Design on a living foundation is unique. No two trees are the same. Different species, different growth rates, and various distances apart make each project vary greatly.

Karl Rosman Nelson Treehouse and Supply

SSF Feed

J&M Hotel Apartments / The Daily Journal of Commerce, Brian Miller / 07.09.25

Swenson Say Faget is providing structural engineering for the seismic upgrade and annex rebuild of the historic J&M Hotel Building in Pioneer Square.

SPL English Programs / The Daily Journal of Commerce, Journal Staff / 06.12.25

The Seattle Public Library (SPL) will significantly increase its free English language learning programs over the next two years, thanks to a $450,000 grant from Carnegie Corporation of New York awarded to The Seattle Public Library Foundation.

Seattle building is the first to get new cement-free concrete / The Daily Journal of Commerce, Journal, Benjamin Minnick / 04.17.25

The first batch of a new concrete that doesn’t use cement was recently poured as part of a seismic retrofit to a 120-year-old brick building in the Green Lake neighborhood. That two-story building at 7200 Woodlawn Ave. N.E. is owned by Donald Davies and will be the future home to Atlantic Crossing Pub, which is moving from the Roosevelt neighborhood.

Contact

(206) 443-6212
info@ssfengineers.com

Seattle

2124 Third Avenue, Suite 100
Seattle, Washington 98121

Tacoma

1818 Tacoma Ave S., Suite 200
Tacoma, WA 98402

Central Washington

414 N Pearl Street, Suite 1
Ellensburg, Washington 98926