12.5mm Knauf Fire Panel Square Edge Plasterboard 1800mm x 900mm

Compact fire-resistant plasterboard sheet, measuring 1800 × 900mm with a 12.5mm square edge, for use in ceilings, partitions, and wall linings where reduced board size aids handling and fixing. The square edge profile allows boards to butt cleanly together without a recess, making it suited to textured finishes, direct decoration, or traditional jointing and plaster skim methods. Smaller dimensions simplify handling in lofts, bathrooms, stairwells, and other confined areas, while still providing the same dependable performance as full-size boards. At 12.5mm thick, the board represents the industry standard, offering reliable strength and stability for partitions and linings while helping to slow the spread of flames and support fire-resistant construction.