White Oak has many industrial applications because it is hard and tough. It has a smokey gray color and is prefinished with Biotek Oil and wax. Exceptional lengths for a prefinished floor, this flooring is milled with a wire-brushed surface and a four sided “clic” (glueless) profile. Uniform in color with a factory applied penetrating oil finish. No percievable change in color. 5/8 in. X 6 7/8 in. X 87 in.