Extra large planks of rustic European oak are smooth sanded and delicately hand filled with a resin and sawdust mix which blends perfectly into the wild grain. The result is a lively natural surface that brings nature into an interior on an impressive scale. A 6mm rustic oak top layer is backed onto a hardwood multi-ply, which gives this extra wide board an ultimate stability and installation versatility. This precision engineered floor is a masterpiece.