Cross-laminated timber (CLT) is a solid-wood construction panel made from at least three layers of lamella (pine or spruce) glued crosswise. The normal size is 3 x 16 metres, but panels are also available in a range of dimensions and grades. The CLT panels have pre-cut openings for doors and windows, according to customer requirements. CLT is suitable for both interior and exterior walls, as well as ceilings and flooring.
Most production currently takes place in Austria and Germany. There is some capacity in the Nordic region, but none at all in southern Sweden. The product has attracted a great deal of interest and in the markets where CLT is growing, demand is greater than supply. Major CLT-based building projects have both been completed and are ongoing all over the world with the aim of developing the market and demonstrating the competitiveness of the technique compared with concrete. As a product, CLT has experienced double-digit growth since it was introduced in early 2000 and this trend is expected to continue in the years to come.