Laminated plasterboard consisting of a 100% natural gypsum core tightly bonded to two cellulose sheets. The board characteristics give it type A classification as per standard EN-520:2004 +A1 2009, i.e. it is a laminated plasterboard to which skim plastering using suitable gypsum plasters or decorative finish can be applied to its surfaces. It is identifiable by its light grey front. It has a nominal thickness of 13 mm, with a nominal width of 1200 mm. Both the long edges (front side) and short edges (back side) of the board are tapered (4BA).