K-3 CLT Classrooms

Location: Wapato and Toppenish, WA

Graham was the contractor for this progressive design-build CLT pilot project for Washington State. This project consisted of a four-classroom addition to Adams Elementary School in Wapato and a four-classroom addition at Valley View Elementary School in Toppenish. The classrooms were designed and permitted in just three months. Lessons learned include:

  • Standardized CLT panel sizes, openings, and layout to keep manufacturing costs down
  • Standardized classroom amenities to gain subcontractor and supplier efficiencies
  • Utilized local subcontractors and labor force to the greatest extent possible to minimize overhead costs
  • Scheduled construction activities so work could flow sequentially between both sites

Contract Value

$2.35M USD

Prime Consultant

NAC Architecture

Project Owner

WA Department of Enterprise Services

Contract Format

Progressive Design-Build

Completion Date

July 2017

Contract Duration

10 months