It is a material made up of wood veneers (at least 5) with a maximum thickness of 6 millimeters, with the grain mostly oriented in the same direction. Its great resistance, uniformity and lightness make it an ideal material for structural use.
Many architects will have heard (I many times) that, according to the CTE, in the turns of stairs of restricted use (interior of houses) only entire plateaus can be left or split them at 45º, that is, the regulation only allows the inclusion of 4 steps in the 180º turn and 2 steps in the 90º turns.
From time to time, and where you least expect it, you have the pleasure of enjoying a first-rate architectural experience, completely removed from the strict line marked by the architects who occupy the "Star System" and the publications that surrender to their whims and whims.
After almost two decades working as an architect specialized in wood, I have detected a series of concerns common to most of the clients, as well as a multitude of fears and "legends" that can only be justified in the lack of knowledge of the material.