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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Kevin March
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★★★★★ 4
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Size: Large, Color: (035) Steel / White / Black
Comfortable fit perfect
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Reviewed in the United States on March 15, 2026
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Wesley
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Size: Large, Color: (100) White / White / Black
These Under Armour no show socks are great for everyday training and casual wear. The cotton blend feels comfortable and they stay in place throughout the day. Getting six pairs in a pack is solid value for a quality brand. They hold up well after multiple washes and the no show style works great with most athletic shoes. A reliable go-to sock.
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Reviewed in the United States on April 30, 2026
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Hanson
Carnegie, US
★★★★★ 5
Comfortable
Size: Large, Color: (001) Black / Black / White
I recently picked up a pair of Under Armour socks, and they’ve quickly become my go-to choice for daily wear and workouts. From the first wear, the fit felt snug and supportive without being too tight. The fabric is lightweight yet durable, and it does a great job wicking sweat — keeping my feet dry even during longer runs or intense gym sessions. One of the things I appreciate most is the arch support and cushioning in the right places. It adds just enough padding where I need it, especially under the ball and heel of the foot, which makes a noticeable difference on days when I’m on my feet a lot. The socks also have a nice breathable mesh pattern that improves airflow.
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Reviewed in the United States on January 4, 2026
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LC
Bozeman, US
★★★★★ 5
LOVE THEM!!
Size: Small, Color: (001) Black / Black / Castlerock
LOVE! These socks are so comfortable! I wear a 5 in women's and a 3 in big kid shoes. The small fit me perfectly. I see where some say they run small but I can't say that was an issue for me. They are "snug" but thats what you want with a no show sock. I feel they have support vs the ones i used to buy at Walmart. They are very soft! I am actually buying more today and throwing my other ones in the trash!
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Reviewed in the United States on February 18, 2026
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Lucy Mejia
Lexington, US
★★★★★ 5
So will not write down your foot
Size: Medium, Color: (001) Black / Black / Castlerock
I love these socks. They have a little bit of gel on the top of the heel for support in your tennis shoes and so your socks don’t write down. Very good quality.
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