It is produced in standard dimension 1200mm x 2400mm composed of a noncombustible gypsum core and encased in a heavy natural-finish paper on the face side and a strong liner paper on the backside. In addition to white Acoustical Fiberglass Tissues for acoustical purpose. The face paper is folded around the long edges to reinforce and protect the core. Board ends are square-cut and finished smooth. Long edges of panels are recessed (tapered) allowing joints to be reinforced and concealed with a joint treatment. Also available in the square edge. We have 5 main types (Regular, Moisture, Fire, Fire& Moisture & the FMR GRG).