When one thinks of wood-based panels for structural applications, oriented strand boards (OSB) usually come to mind. Understanding their mechanical properties is crucial for accurate design and modelling. In collaboration with our project partner Hasslacher, 6-layer OSB boards were produced in order to thoroughly investigate their shear and bending properties as well as their failure mechanisms. This series of tests, carried out in the IKI test laboratory, not only provides invaluable insights into the properties of large-format OSB boards, but also forms a solid basis for selecting the best test methods and guidelines for future evaluations of Unistrand boards – a central component of the Unistrand project.