BEECH Vulcano Fresco Duna Beech wood with consistent colour resulting from heat treatment (without chemical additives). Beech plank in 3-layer construction, bevelled (2.5 mm) on the long side and with approx. 2,5 - 4 mm top layer, with approx. 4 mm backing in the same wood and middle layer conifer. Tongue and groove on all sides for easy installation.