Skip to content

Exciting news for the future of Eclipse Engineering: Learn more here

Material handling hero

Mass Timber/CLT

beautiful, sustainable structures

Eclipse Engineering provides mass timber and CLT engineering and consultation for residential and commercial structures across the United States. Eclipse has worked on CLT design and engineering for over a decade.

Our engineers are innovating in this growing sector that provides exciting opportunities for beautiful, sustainable structures to stand the test of time.

Few engineering companies in the United States offer the experience, licensing, and industry connections to work on these projects as effectively as Eclipse. We are also licensed in 8 Canadian provinces and territories.

We also take pride in our responsive, friendly services and consistently receive positive feedback for our customer
service and willingness to adapt to challenges.

We rise to the challenge

Our staff provide structural calculations for CLT and mass timber projects including residential buildings, commercial structures, elevator shafts, sawmills, pavilions, canopies, decorative elements and more.

Trust Eclipse for Expertise, Reliability, & Exceptional Service

We also provide specialty engineering for the lifting and rigging of CLT panels, as well as for staging of equipment and materials on the CLT panels during construction.

We provide standard CAD and Revit drafting to supplement structural drawings to a project. When appropriate, we also use Building Information Modeling to model CLT panels down to a 1/32nd-inch gap in panel splices and submit information to the manufacturer for implementation into their programs, streamlining coordination and production.

We also use cutting-edge Finite Element Analysis (FEA) modeling software in conjunction with engineering mechanics to complete the structural engineering for mass timber elements.

The variety of tools at our disposal allows us to efficiently analyze complicated loading and framing considerations.

Our process made easy

Personal connections

Personal connections

Our clients return to us again and again for our friendly, personal touch, in-depth knowledge and adaptability.

Design & Drafting

Design & Drafting

We’ll define the scope of the project and strive to ensure the plans meet your goals and adhere to local codes.



We’ll conduct site visits and check-ins during the construction process to ensure that our team delivers a quality product that meets design intent.

eclipse quote

I wholeheartedly recommend Eclipse Engineering to anyone seeking a structural engineering partner that excels in timely deliverables and builder-friendly details. Their commitment to excellence, combined with their seamless blend of technical proficiency and practicality, has had a profound impact on the success of our projects.

Boon Schmieder

Owner/Project Manager, Woodroots Construction

cta background

Let’s get started today!

Contact us today to find out if we’re a good fit for your structural engineering project.