Real wood flooring is Solid wood flooring. It comes in a thickness of 18-20 mm. The installation process is very involved. First plywood has to be laid and the wooden flooring is nailed to it. Solid wood flooring has to be maintained with little care. It has to be polished every 2 years to keep it in good condition. But when you walk on the real wood flooring you will know the difference. It is well worth the extra work. Real wood flooring is expensive.