Available Size 750 x 150 x 14.5mm - Herringbone 900 x 150 x 14.5mm - Chevron 1900 x 190 x 14.5mm - Standard board Black Opal engineered hardwood is premium grade European Oak. Safeguarded by Forestry Stewardship Certification (FSC) and a rigorous testing process, it is exclusively sourced from sustainable forests across France and Europe. Black Opal flooring consists of a layer of natural solid wood on top of a base of high-quality plywood. Engineered flooring is increasingly demanded by designers in both residential and commercial spaces due to ease of installation, durability, versatile design ranges, aesthetic appearance and cost-effectiveness resulting from long durability. Engineered Hardwood is proven to be more resistant to variations of moisture and temperature than solid wood floors because of the stable base of high-quality plywood layers which also helps to avoid gaping and peaking.