Hardwood Flooring

The installation of hardwood flooring is a major project. Hardwood floors require special tools for installation. The floor must be level before the wood flooring is installed. Some flooring systems, such as floating hardwood flooring, don't get nailed to the floor below. The wood pieces interlock.

Source: http://www.askthebuilder.com/869_Hardwood_Flooring.shtml

california general contractors california home improvement add a room addition contractors