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 on which skim plastering using a suitable gypsum plaster or ornamental finish can be applied to its surfaces. It is identifiable by its light grey front. It has a total nominal thickness of 10 mm, with a nominal width of 600 mm. The long edges of this board are cardboard-coated and straight (BC).