Will my new wood floor be perfectly level?

Since wood flooring follows the general contour of the subfloor, your floor will only be as level as what is underneath it. The general industry specifications are that the floor be flat to within 1/8” in 6’, or 3/16” in 10’. Please note that this specification refers to planarity, or flatness, not how level the floor is. Don’t expect to place a marble on the floor and not have it roll. If you are concerned about flatness or level of your floors, you may need to have your builder or a general contractor check and repair your subfloor prior to wood flooring installation. Also, do not count on the sanding process to level a floor, since a very small amount of wood is typically removed during the sanding process.