This document provides information on the characteristic values for use in designing structures incorporating wood-based panels. The characteristic values given are as defined in EN 1995 1 1. This document includes the characteristic values of both the mechanical properties and density for the panels set out below: - OSB/2, OSB/3 and OSB/4, complying with EN 300; - Particleboard, P4, P5 P6, P7 complying with EN 312; - Hardboard, HB.HLA2 complying with EN 622 2; - Medium board, MBH.LA2 complying with EN 622 3; - MDF.LA and MDF.HLS complying with EN 622 5; - MDF.RWH complying with EN 622 5.