We used a product purchased at Home Depot. It comes in large "tiles" and has a plywood top and a channeled rubbery bottom. It was very easy to install. We chose it because our basement is currently dry, but one never knows. Also, when you walk on it, it feels like you're walking on real floor. In different areas of the basement, we covered it with vinyl, hardwood and carpet or just left it plain. All are great and there's absolutely no musty basement smell. I'm sorry I don't recall the name of it, but we've seen it at all the Home Depots.