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B&Q£175.20Visit shop B&Q - 12.5mm Wallboard Square Edge Plasterboard 2400mm X 1200mm (X10 Boards)
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The Knauf Wallboard Square Edge Plasterboard is designed for professional contractors and DIY enthusiasts who need a reliable, high-quality surface for interior walls and ceilings. At 12.5mm thick, it provides excellent structural stability for partition walls and ceiling linings, though users should be aware that its square-edge profile requires careful jointing if a completely seamless, invisible finish is desired compared to tapered-edge alternatives.
| Brand | Knauf |
|---|
This is a standard wallboard; while it can be used in dry areas of a bathroom, it is not moisture-resistant. Use specialized moisture-resistant plasterboard for wet zones.
Yes, it can be painted directly, but because it has square edges, you will see the joints unless you finish them with a suitable filler or a full plaster skim.
A standard 2400mm x 1200mm board is heavy; it is recommended to have two people available for safe lifting and installation.
Yes, as per the manufacturer, boards may be supplied as equivalent brands like Siniat or Gyproc, which meet the same technical specifications.
Use drywall screws appropriate for your frame material (timber or metal) spaced roughly 300mm apart along the board edges and centers.
Ensure fixings are spaced correctly and that the plaster skim is applied evenly over the entire surface to bridge the square edges.
Store boards in a dry, humidity-controlled environment; avoid using boards that have been exposed to water, as they will lose structural strength.
For optimal results, ensure the supporting framework—whether timber or metal studs—is perfectly level and spaced at a maximum of 600mm centers. When cutting the boards, use a sharp utility knife to score the paper face and snap the gypsum core cleanly. Secure the boards using recommended drywall screws, ensuring they are driven just below the paper surface without piercing it. Store boards flat in a dry, ventilated area, elevated off the ground to prevent moisture absorption, which can compromise the board's integrity. Always check your local building control requirements if you are installing these boards as part of a fire-rated assembly.
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