The Wood Innovation Research Lab (WIRL) at the University of Northern British Columbia gives students and researchers much needed space to test state-of-the-art building systems. WIRL is noteworthy in that it is the first industrial building in North America certified to rigorous Passive House energy standards. WIRL is a single-storey mass timber structure, composed of glue laminated timber (glulam) columns and beams on a concrete raft slab foundation. The building is 10-metres in height and consists of high-head lab space, classrooms and office space. The 10-metre tall wall panels are framed with prefabricated 0.5-metre thick upright wood trusses. The project team integrated strong floor and wall structures to accommodate heavy testing equipment; they also designed a superstructure which supports the roof and the overhead crane used to maneuver heavy materials. All building structural systems were constructed of wood.