Refundable Sample available on this product. Berthold 21mm American Black Walnut is a premium quality solid wood floor. This 21mm thick floor is 128mm wide along with long length boards of upto 2360mm. Each board has bevelled edges on all four sides while the surface has a brushed and oiled finish which gives the floor a stunning textured feel and natural look. The natural grade allows knot holes up to 3mm, larger firmly encased or levelled knots, slight cracks in the knots, black streaks and sapwood on up to 25% of the surface. With tongue and groove jointing, installation is by nail down or fully glued to the sub floor. The floor can also be laid as a floating installation via the Berthold steel clip system (purchase separately).
