CLT ELEVATOR SHAFTS PART OF WORLD’S TALLEST TIMBER TOWER

Cross-laminated timber (CLT) elevator shafts are part of Mjøstårnet, a mixed-use tower in Brumunddal, Norway, that the Council on Tall Buildings and Urban Habitat (CTBUH) recently ratified as the world's tallest timber building at 18 stories, or 85.4 m. In light of the recent increase in tall-timber construction worldwide, CTBUH also amended its height criteria to include timber as a recognized structural material: an "all timber" structure may include non-timber elements such as CLT and glue-laminated (glulam) timber. In addition to the elevator shafts, Mjøstårnet has CLT stairs and floor slabs, and glulam columns, beams and diagonals. AB Invest AS developed and Voll Arkitekter designed the building, which is the third-tallest in Norway.