The solid and highly steady interior comprises chipboard surrounded by pine, with a double bottom rail.
MDF board is placed over this face-to-face core, thereby lending the end product a market stability and durability.
In the case of doors with protected hidden edges, the perimetral frame is substituted by its equivalent in DM. To solid wood 9 mm thick bands are adhered to it.
The panel, attached to the door with a moldfing made of DM, may be 10 mm flush (5 mm for glazing) or even raised chipbord around the entire perimeter of the 16 mm DM.