Installing Hardwood Floors
The type of flooring you select will help determine your installation option. You will also need to take the subfloor into consideration. If your current subfloor is concrete, you will only be able to install engineered flooring, not solid hardwood.
Engineered is actually produced with three to five layers of hardwood. Engineered products are made with either a plywood core or a high-density fiberboard core.
Solid, like it sounds, is milled from a single 3/4″ thick piece of hardwood.