Laminated plasterboard consisting of a 100% natural gypsum core tightly bonded to two cellulose sheets. The board characteristics give it type I classification as per standard EN-520:2004 +A1 2009. This type of board is used in applications that require greater surface hardness. In addition, its reinforced, high-density formulation makes the surface highly resistant to impacts and fire. It has a nominal thickness of 18 mm, with a nominal width of 900 mm. The long edges of the board are cardboard-coated and tapered (BA).