By Stephani L. Miller. According to Mickey Moore, technical director for the Wood Flooring Manufacturers Association (NOFMA), 21/4-inch-strip oak still is the most popular choice for flooring. "One of the biggest trends right now is hand-sculptured hardwood flooring, where surface texture is sculpted into each board by hand to create a random, lived-in appearance," says Steve Bunch, director of business development for Columbia Flooring, whose firm manufactures a hand-sculpted line in eight SKUs.