Why is a floor structure filled in with dry fillers circular?

A floor structure installed with the Staenis grid and filled with dry fillers provides the opportunity to build a fully reusable floor structure. The grid is filled in with dry, loose fillers that are not given a binding agent and will therefore always remain loose in the grid. These are covered with wooden plates (staggered or not) that are screwed onto the grid. After that, a non-glued floor finish can be placed on it, such as laminate, click cork, non-glued tiles (Drytile). If this floor has to be demolished later, any material can be reused in its original state without creating waste.