Solid Hardwood Solid hardwood floors are just that — they’re made from solid wood. Each board of solid hardwood flooring is made from a single piece of hardwood that’s about 3/4 of an inch thick. Because it’s so thick it can be sanded down and refinished for however long the flooring is in the house. Solid wood flooring is permanently nailed to the subfloor. Solid hardwood floors are more prone…