This flooring was custom-made to order using American White Oak. The client specified a 7.5″ width for the planks. They also request an extra thick 3/4″ Engineered plank. The grain pattern in the wood is called Live Sawn grain. We have a helpful grain diagram if you would like to see it. The floor was finished with WOCA Diamond Oil for a beautiful matte finish that really brings out the natural beauty of the wood. The flooring is a Character grade that includes neat things like wormholes, knots, sapwood, etc. www.oakandbroad.com 800-808-0240 Made to order in the USA!