Refundable Sample available on this product. This Florence Premium Engineered European Oak Grey Oiled Flooring is a 22mm thick with a hardwood wear layer of 6mm over a Birch plywood core, making it ideal for use with under floor heating. The 189mm width has tongue and groove jointing along with bevelled edges. The natural grading floor is finished with 3 coats of grey oil which leaves the floor with a delicate and relaxing hint of grey. The floor can be installed as a floating floor or by full stick down method. The floor is also suitable to be used as a structural floor and nailed onto joists or battens.