Mullican’s Castillian collection is one of the most exquisite selections of engineered hardwood flooring ever designed. Precision manufactured from the finest European White Oak, Castillian Premier is a 5/8-inch thick sawn engineered flooring that provides the elevated visual of solid flooring with the added stability of engineered construction. Castillian Premier offers wirebrushed treatments, NWFA Certified Refinishable wear layers, extra wide 9.44-inch planks and random extended lengths up to seven feet. All Castillian products carry a 50-year finish warranty.