Cross-laminated timber (CLT) is a mass timber product that can replace concrete and steel in modern construction. As buildings become more sustainable and timber structures grow larger, CLT has become a popular solution for floors, roofs, walls, and stairs due to its strength, appearance, and versatility. Cross-laminated timber is well known for its strong load-bearing qualities. It is a sustainable alternative to concrete and steel thanks to its acoustic, fire, seismic and thermal performance. CLT by Stora Enso is available from PEFC or FSC-certified softwood.