SKU: 29638992590

Square Edge Plasterboard x 12.5mm

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Description

Square Edge Plasterboard x 12.5mmSquare edge plasterboard 12. 5mm is the standard general purpose board for internal walls and ceilings in domestic and commercial builds. Featuring an aerated gypsum core with bound paper liners, it complies with BS EN 520: 2004+A1: 2009 Type A and is available in two sheet sizes. Specifications Material Aerated gypsum core with paper liners Grade BS EN 520: 2004+A1: 2009 Type A (general purpose) Thickness 12. 5mm Sizes Available 2400mm x 1200mm

Square edge plasterboard 12.5mm is the standard general-purpose board for internal walls and ceilings in domestic and commercial builds. Featuring an aerated gypsum core with bound paper liners, it complies with BS EN 520:2004+A1:2009 Type A and is available in two sheet sizes.

Specifications

Material Aerated gypsum core with paper liners
Grade BS EN 520:2004+A1:2009 Type A (general purpose)
Thickness 12.5mm
Sizes Available 2400mm x 1200mm / 1800mm x 900mm
Profile Square edge
Finish Paper-faced, suitable for skim coat, textured finish, or direct decoration
Use Internal walls and ceilings only

What it's used for

  • Lining internal stud partition walls in new builds and refurbishments
  • Fixing to ceiling joists as a base for skim plaster or textured coatings
  • Dot and dab application direct to masonry walls as a dry lining solution
  • Infill panels within metal frame systems in commercial fit-out work

Fitting and handling

Store boards flat and off the ground in a dry, ventilated space before installation, keeping them away from damp conditions which can cause the core to soften. Fix to timber studs or metal framing at no more than 600mm centres using appropriate drywall screws, or use a suitable bonding compound for dot and dab to masonry. Once fixed, fill screw heads and joints with jointing compound before applying a skim coat or finish of your choice.

FAQ

What is the difference between square edge and tapered edge plasterboard?

Square edge board has flat, unrecessed edges on all four sides and is designed for use where the full surface will receive a skim coat of finish plaster. Tapered edge board has recessed long edges so that jointing tape and compound can be feathered flush for a seamless, paint-ready surface without full skimming.

Can 12.5mm plasterboard be used on ceilings?

Yes. 12.5mm is a standard thickness for ceilings where joist centres are at 400mm or 600mm. For spans beyond 600mm or where additional acoustic or fire performance is needed, a thicker board or a specialist product should be specified instead.

How do I cut plasterboard cleanly on site?

Score firmly through the paper face with a sharp knife and straightedge, then snap the board away from you over the scored line. Run the knife along the back paper to separate the cut. A plasterboard saw can be used for internal cuts and cut-outs around sockets or switches.

For other sheet materials to complete your build, browse the MDF sheets range at Nottage Timber Merchants. We supply trade and self-build customers across Bridgend and South Wales, with next-day delivery available to many local postcodes.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 29638992590

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Larry Swafford
Grantham, US
★★★★★ 5
Protects floors
Size: X-Large: 28" x 34"
I love these pee pad holders. My dog goes near the edge of the pad and the urine gets on my hardwood floors. With these pads the edges of the pee pad holder catches the urine before it gets on the floors. It is very easy to clean the pad holder. I am so thankful it protects my floors!
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Reviewed in the United States on January 5, 2026
A
Verified Purchase
Amazon Customer
Omaha, US
★★★★★ 4
Works well with the pads. Keeps them from getting bunched up all over the floor.
Size: Small: 24" x 24"
It was a nice idea, but my dogs chewed it up. If you don't have a chewer, then it's really nice.
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Reviewed in the United States on May 24, 2025
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ArkansasLMT
Port Orchard, US
★★★★★ 5
Saved my sanity
Size: Small: 24" x 24"
I thought I knew everything about cats, but when my 14 year old cat stopped using the litter box, I could not fix it. I did persuade her to start using puppy pads but the problem was she would pee toward the edge and it always got on the floor. Or, defying everything I know about reality, she would find a way to pee UNDER the puppy pad. I asked ChatGPT for advice and it recommended these. They fixed the problem by 80% and I'll take it! These mats help a ton. She still gets some pee on the floor, but it's not the huge problem it used to be. The edge on the mat keeps it contained. And enzymatic cleaner works its magic on the floor. The clips that go on the edges are kinda fragile, but that's why they give you extras.
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Reviewed in the United States on February 10, 2026
I
Verified Purchase
Ilein
Battle Creek, US
★★★★★ 1
Not Leak Proof
Size: X-Large: 28" x 34"
horrible do not buy! leaks threw and caused a permanent stain and smell. thought it was good but after a week i noticed the smell and lifted up the mat there was complete pee under.
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Reviewed in the United States on April 12, 2026
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Jarett
Lowell, US
★★★★★ 5
Great investment
Size: Small: 24" x 24"
It catches the pee that runs off the pad, great investment!!
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Reviewed in the United States on February 12, 2026

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