Rappgo’s wide plank flooring boards have a multi-layer construction.

Do you know the functional difference between a multi-layer board and a solid wood flooring board? It’s a question of stability in form and shape. Wood is a living material and from a technical point of view, is hygroscopic (i.e., it readily absorbs moisture from the air), which means that the wood strives to maintain the same level of relative humidity as the ambient air. With a high ambient humidity level, the wood swells and with low ambient humidity, it shrinks. This movement, which is natural for wood, often creates gaps and cracks in solid wood during the heating season.

A multi-layer board is stable in shape and form, which reduces the risk of becoming concave or convex in shape, so that the board remains flat. The floor can be sanded without an unnecessary amount of wood being sanded off. A multi-layer board can therefore be sanded a number of times, precisely like a solid board.