When any new internal wall is erected, dry lining plasterboards are the most popular way of covering the internal wall build before plastering of any fashion can take place. These are fastened to the internal wood build with nails and lost under the final coats of plastering. Plasterboards can be cut to fit any shape of wall/design.
The most commonly used thicknesses of plasterboard available are 12.5 mm (modern equivalent of half an inch), typically used for walls, and 9.5 mm (modern equivalent of three-eights of an inch), typically used for ceilings. 15 mm thick board is commonly available, and other thicknesses are also produced.
Plasterboard is commonly made with one of two different edge treatments: Tapered Edge, where the sides of the board are tapered at the front to allow for jointing materials to be finished flush with the main board face, and Straight Edge, where there is no different thickness at the side of the board.