Modern materials — flooring — is a composition of four layers. Each performs a strictly defined function. The lower, the core layer is most often made of pine or spruce plywood. Perpendicular to the fibers is an average, the stabilizing layer made of the multilayer timber, or glulam softwood fiber board of high density. Perpendicular layer provides strength and stability of wood flooring, as well as its high resistance to changes in temperature and humidity. The middle layer of specially arranged grooves and ridges or interlocking connection. With their help, strips collected into a single unit.

The direction of the fibers of the upper, active layer, or a shirt, perpendicular and parallel to the lower average. This layer gredstavlyaet a veneer thickness of about 0.5 mm or strip (lamellae) 2,2-6 mm thick, made of more expensive types of wood: oak, ash, beech, cherry, pear, maple and so on. N. The harder wood the longer it resists wear. To describe the degree of hardness using the Brinell scale. In accordance with it the durability of oak can be characterized indirectly numbers 2,9-3,7. But the most lasting is exotic wood Jatoba, whose hardness is in the range 7-7,7. These layers are joined under high pressure to provide material strength and wear resistance, polished, sometimes treated otherwise, a non-trivial way and covered the fourth, finishing layer — varnish, wax or oil. Finishing shirt protects from scratches and dirt, gives it more decorative.

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