PETRALWood is a self-laying magnetic floor covering in genuine natural wood. It comprises a noble oak surface layer over a core of phenolic birch plywood and a base layer consisting of a mix of thermoplastic resin and magnetically charged ferrite. PETRALWood is formed in thin planks and tiles, treated, stained, finished in protective oils or wear-resistant varnish and squared to a fine tolerance. The edges are protected against humidity and slightly chamfered for easy installation.