Knauf Wallboard Tapered Edge Plasterboard - 12.5mm - 2400mm x 1200mm

The Knauf Wallboard Tapered Edge Plasterboard is a durable, gypsum-based solution designed for pro...

Best current price£175.20from B&Q

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B&QB&Q - 12.5mm Wallboard Tapered Edge Plasterboard 2400mm X 1200mm (X10 Boards)
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£175.20
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HomebaseKnauf Drywall 12.5Mm Tapered Edge Plasterboard 2400 X 1200Mm 10 Pack
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£188.00
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Product Information

Full details

The Knauf Wallboard Tapered Edge Plasterboard is designed for professional builders and DIYers looking for a reliable, gypsum-based solution for interior partitions and ceilings. Its primary benefit is the tapered edge design, which streamlines the finishing process by creating a recessed space perfect for taping and jointing, resulting in a professional, seamless surface. While it provides an excellent base for decoration, users should note that the 12.5mm thickness is intended for standard lining applications and requires careful handling to avoid corner damage during transport.

All features

BrandKnauf

Extended Product Information

FAQs

Can I use this board in bathrooms?

This is a standard gypsum board and is not moisture-resistant. For bathrooms, you should use specialized moisture-resistant plasterboard.

What is the best way to cut this board?

Score the paper surface with a sharp utility knife, snap the gypsum core along the line, and then cut through the paper on the reverse side.

How many boards do I need?

Calculate the total square meterage of your wall or ceiling and divide by the area of one board (2.88 square meters), adding 10-15% for waste.

Can these be fixed directly to masonry walls?

Yes, but they are typically installed using a 'dot and dab' adhesive method onto a dry, stable masonry surface.

Is this fire-rated?

This is standard wallboard. If specific fire-resistance ratings are required by building regulations, you must use fire-rated board.

Troubleshooting

Joint compound cracking after drying

Ensure the supporting studs are properly aligned and the board is securely fixed to prevent movement at the seam.

Difficulty achieving a smooth joint

Check that the jointing tape is fully embedded in the recess and that you are using a wide enough trowel for a feathered finish.

Board edges crumbling during installation

Avoid sliding the boards against abrasive surfaces; lift them into place and ensure careful handling of the edges.

Pros and Cons

Pros

  • Tapered edges significantly reduce the time spent on jointing
  • Provides a smooth, professional-grade finish
  • Highly compatible with standard wall lining and partition systems
  • Minimizes the risk of surface cracking at joints

Cons

  • Requires professional cutting tools for precise installation
  • Edges are susceptible to impact damage during storage
  • Heavy weight requires two-person handling for ceiling installations

Setup, Compatibility & Care

To ensure the best results, store these boards flat in a dry, indoor environment to prevent moisture absorption or edge warping. When mounting, ensure that the supporting frame is level, as the performance of the board depends on a flat substrate.

  • Fixing: Use appropriate drywall screws that are correctly countersunk without breaking the paper surface of the board.
  • Compatibility: Works seamlessly with all standard jointing compounds, paper tapes, and mesh tapes.
  • Care: If you notice minor surface scuffs during transport, these can generally be sanded lightly and filled during the jointing phase. If the gypsum core is cracked, the structural integrity of that section may be compromised, and it should be replaced.

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