KLH Massivholz

Austria · Paper & Forest Products

KLH Massivholz GmbH is a leading manufacturer of cross-laminated timber (CLT), known for its innovative KLH®-CLT elements used in structural timber construction. Founded in 1999 and based in Teufenbach-Katsch, Austria, KLH operates as a subsidiary of the Johann Offner Unternehmensgruppe, a family-owned company with a rich history spanning over 250 years. The company has two production facilities, including a recently opened site in Bad St. Leonhard, which enhances its annual production capacity to approximately 125,000 m³. KLH specializes in engineered wood products, particularly large-format KLH®-CLT panels suitable for various building types, including mid- to high-rise structures and public infrastructure. The company collaborates with architects and engineers worldwide, having completed over 38,000 projects in more than 30 countries. KLH also offers technical support through its KLHdesigner platform, which provides tools for structural calculations and building physics analysis. Committed to sustainability, KLH adheres to environmental management standards and focuses on energy efficiency and reduced carbon emissions in its operations.