Renewable can be referred to as a resource that can be replenished or reformed either naturally or by systemic recycling of used resources. Renewable is resource or source of energy that is replaced naturally or controlled carefully and can therefore be used without the risk of finishing it all (Oxford dictionary).
Engineered Hardwood Floors. Engineered hardwood floors are not solid hardwood. Only the top layer is finished real wood so that you get the look and feel of a hardwood floor. The bottom layer, or core, is made up of stacked layers of fiberboard or plywood.
Solid hardwood floors are made of planks milled from a single piece of timber. Solid hardwood floors were originally used for structural purposes, being installed perpendicular to the wooden support beams of a building known as joists or bearers. With the increased use of concrete as a subfloor in some parts of the world, engineered wood flooring has gained some popularity.