Structural Engineering for Treehouses

Rafn Construction sends a quarterly newsletter to their clients that includes interesting construction-related articles. In the March 30th newsletter, they interviewed our own Mat Johnson about our work on treehouse projects. Here’s a link to their article.



Pete Nelson / Nelson Treehouse and Supply


Security Properties Spring District Project / / 11.23.16

The long-awaited Spring District is taking shape!

SSF Team Update / / 07.11.18

In Seattle, the structural engineering firm Swenson Say Faget promoted Robert Henry to senior project manager, Sean Johnson, Mat Johnson, … read more +

8105 Greenwood Apartments / / 08.27.20

The 66-unit project on Greenwood is one of two affordable housing projects that Inland Group will build.