Attn: Meetups are now held virtually!

Join the Critical Mass Timber Meetup Group here!


Hosted in Portland, OR, the Critical Mass (Timber) Meetup Group is an informal monthly gathering of professionals interested in building bigger, taller and smarter with wood. Centering around various topics related to the use of relatively new-to-the-US materials such as cross-laminated-timber, our group brings together architects, engineers, construction professionals, developers, code officials, municipal planners and anyone with an interest in seeing more buildings go up using renewable materials. THIS IS NOT A LECTURE SERIES! The goal of these meetings is to create an interactive discussion space in which individuals can learn from each other through sharing of personal experiences and projects they have undertaken. All are welcome!



Recordings newer than OCT 2020 are now at:

October 1, 2020 - Innovative Seismic Systems

September 2020 - Lateral Force Resisting Systems with KPFF

August 2020 - OSU Cascades - A Mass Timber Project Showcase With Swinerton Builders and SRG Partnership Inc. (uploaded soon)

July 2020 - Develop/Design/Build - Path + Kaiser Firm Showcase

June 2020 - Talking Shop: Design and Computer Aided Manufacturing with TDI, CutMyTImber and Sauter Timber

May 2020 - Mass Timber Investment and Development


Previous Meetups:


Moisture and Mass Timber

Mass Timber Mingler at the Oregon Conservation Center 

Mass Timber Tour: District Office with Hacker Architects + Andersen Construction

The Canyons and Block 76: Mass Timber Projects Showcase

Manufacturing Mass Timber: Considerations for Growing a Local Supply Chain

IBC TallWood Provisions - Mass Timber Building Code Changes 



Monitoring Timber Structures: Why, what, where and how?

REclaiming Wood: Deconstruction Initiatives, Upcycling into CLT, and More

Forestry 101 (for Designers and Other Non-Foresters)

Acoustics in Mass Timber Buildings

The Developer's Perspective

BIM and CAD in Mass Timber Construction Projects

George W. Peavy Forest Science Ctr. Tour & Project Discussion

Fire Protection Strategies for Mass Timber Buildings