.jpg)
12.5mm Knauf Wallboard Square Edge Plasterboard 2400mm x 1200mm
Coverage required
Standard 12.5mm plasterboard, used widely for internal walls and ceilings. Square edges suit skim plaster finishes. 2400mm x 1200mm is standard sized sheet.
Nationwide Delivery
Tue 23 Sep
- 0days
- 23hrs
- 36mins
- 56secs
Learn more
Pay in 3 interest-free payments
Split your purchase of £9.35 into 3 with no sign-up fees or late fees.
£3.12
today
£3.12
1 month
£3.12
2 months
How it works
- Choose PayPal at checkout to pay later with Pay in 3.
- Complete your purchase with the first payment today.
- Remaining payments are taken automatically.
Pay in 3 is a form of credit, so carefully consider whether the purchase is affordable and how you will make the repayments. Be aware of the possible impact of using Pay in 3 and of missing payments, including making other borrowing more difficult or more expensive. Pay in 3 eligibility is subject to status and approval. 18+ UK residents only. Available for purchases of £30 to £2,000. Terms and conditions apply. PayPal Pay in 3 is a trading name of PayPal (Europe) S.à r.l. et Cie, S.C.A. 22-24 Boulevard Royal L-2449, Luxembourg.
Learn more
Buy now. Pay with Klarna at your own pace.
Get what you need for your next project, choose how you pay.
Pay in 30 days
£9.35
Pay in full
Klarna's Pay in 30 days is an unregulated credit agreement. Borrowing more than you can afford or paying late may negatively impact your financial status and ability to obtain credit. 18+, UK residents only. Subject to status. T&Cs and late fees apply.
Pay over time
£3.12
Every 30 days
Pay in 3
£3.12
today
£3.12
in 30 days
£3.12
in 60 days
Klarna's Pay in 3 is an unregulated credit agreement. Borrowing more than you can afford or paying late may negatively impact your financial status and ability to obtain credit. 18+, UK residents only. Subject to status. T&Cs and late fees apply.
How it works
- At checkout select Klarna.
- Choose your payment plan.
- Different payment plans may be shown depending on the purchase amount and credit score.
- Complete your checkout.
- The amount will be charged based on the payment plan you chose.
Learn more
Pay in 4 interest-free payments
Split your purchase of £9.35 into 4 with no sign-up fees or late fees. Your purchase will be split into 4 payments, payable every 2 weeks
£2.34
today
£2.34
second payment
£2.34
third payment
£2.34
fourth payment
How it works
- Choose Clearpay at checkout to pay later with Pay in 4.
- Complete your purchase with the first payment today.
- Remaining payments are taken automatically.
Clearpay is unregulated credit. Use responsibly. 18+, T&Cs and late fees apply at clearpay.co.uk/en-GB
Clearpay lends you a fixed amount of credit so you can pay for your purchase over 4 instalments, due every 2 weeks. Ensure you can make repayments on time. You must be 18+ and a permanent UK resident (excl Channel Islands). Clearpay charges a £6 late fee for each late instalment and a further £6 if it’s still unpaid 7 days later. Late fees are capped at £6 for orders under £24 and the lower of £24 or 25% of the order value for orders over £24. Missed payments may affect your ability to use Clearpay in the future and your details may be passed onto a debt collection agency working on Clearpay’s behalf. Clearpay is credit that is not regulated by the Financial Conduct Authority. T&Cs and other eligibility criteria apply at clearpay.co.uk/terms
Product Overview
Standard 12.5mm plasterboard, used widely for internal walls and ceilings. Square edges suit skim plaster finishes. 2400mm x 1200mm is standard sized sheet.
Delivery & Returns Information
How Our Delivery Works
We work with a nationwide network of trusted suppliers. As a result, items in your basket may be supplied by different suppliers and delivered separately. Where this applies, you'll see multiple delivery charges at checkout. We always aim to group products from the same supplier to keep delivery costs as low as possible.
Delivery Areas & Charges
Delivery charges listed on our website apply to mainland UK, excluding the following postcode areas: AB, CF, DD, DG, FK, KW, IV, LA, LD, LL, NP, PA, PH, SA, SY
If your delivery address falls within one of these postcode areas, we’ll be in touch before processing your order to confirm any additional delivery costs.
Please note: We do not currently offer delivery outside the UK mainland.
Standard (Nationwide) Delivery
|
Core Products Core
|
|
|---|---|
| ORDER VALUE | DELIVERY CHARGE |
| Under £300 ex. VAT | £20 ex. VAT |
| Over £300 ex. VAT | FREE |
Core Delivery charges apply only when all products in an order that have equivalents are accepted as such. If even one product cannot be substituted with an equivalent, the entire order will not qualify for Core Delivery charges.
| Insulation, Plasterboard and Drylining Products | |
|---|---|
| ORDER VALUE | DELIVERY CHARGE |
| Under £350 | £35 ex. VAT |
| Over £350 ex. VAT | FREE |
| Timber & Sheet, Building Materials, Joinery and Gardens & Landscaping Products | |
| ORDER VALUE | DELIVERY CHARGE |
| Under £300 | £10 ex. VAT |
| Over £300 ex. VAT | FREE |
| Screws & Fixings and Adhesives & Sealants | |
| ORDER VALUE | DELIVERY CHARGE |
| Under £50 | £5 ex. VAT |
| Over £50 ex. VAT | FREE |
Express Delivery
| Express Delivery - Insulation and Plasterboard & Drylining | |
|---|---|
| ORDER VALUE | DELIVERY CHARGE |
| Under £400 | £50 ex. VAT |
| Over £400 ex. VAT | £35 ex. VAT |
| Express Delivery - Timber & Sheet, Building Materials, Joinery and Gardens & Landscaping Products | |
| ORDER VALUE | DELIVERY CHARGE |
| Under £300 | £50 ex. VAT |
| Over £300 ex. VAT | £35 ex. VAT |
Returns
We offer a 30 day returns policy on any faulty products.
Key Features
- {{fact_check}} Suited for partitions, linings, and ceilings
- {{format_paint}} Ideal for direct decoration or plaster finish
- {{handyman}} Can be fixed with screws or dot and dab method
- {{savings}} Cost-effective solution
Technical Specification
| Product: | Wallboard |
|---|---|
| Material Type: | Gypsum |
| Thickness: | 12.5mm |
| Width: | 1200mm |
| Length: | 2400mm |
| Sales Unit: | Sheet |
| Sales Unit Coverage: | 2.88m2 |
| Brand: | Knauf Drywall |
| Manufacturer's Reference: | 243643 |
| Weight: | 23.9kg |
| Thermal Conductivity: | 0.19W/mK |
| Edge: | Square |
| Colour: | Ivory |
Technical Downloads
Product Overview
Standard plasterboard sheet, measuring 2400 × 1200mm with a 12.5mm square edge, for use in ceilings, partitions, and wall linings where board size aligns with typical stud spacing and maximises coverage.
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.
Standard dimensions reduce the number of joints required across walls and ceilings, improving installation efficiency while maintaining dependable performance in partition and lining systems.
At 12.5mm thick, the board represents the industry standard, providing reliable strength and stability for partitions and linings while minimising flex and reducing the risk of surface cracking.
Features & Benefits
- Square edge profile: Creates a flush joint suited to skim plaster finishes.
- Ivory paper face: Provides a clean, neutral base for paint, wallpaper, or plaster.
- Lightweight gypsum core: Simplifies lifting, cutting, and fixing.
- Ideal for ceilings: Reduced weight makes overhead work less demanding.
- Made by Knauf Drywall: Backed by quality and compliance standards.
- Standard 2400mm x 1200mm size: Fits common framing/grid systems.
- 12.5mm thickness: Standard for drylining - the basis for most stud and track, lining, and manufacturer specs.
Applications
- Ceiling lining: Standard board size widely used for overhead installations.
- Internal partitions: Suitable for non-loadbearing dividing walls.
- Wall linings: Provides a smooth surface ready for finishing.
- General refurbishment: Covers areas quickly with fewer joints.
Installation Guidance
- Fix with staggered joints: Improves strength and reduces cracking.
- Cut by scoring and snapping: Ensures accurate sizing.
- Store flat in a dry space: Prevents moisture damage and warping.
Compliance & Performance
- Manufactured in accordance with ISO 14001: Meets environmental standards.
- Manufactured to EN 520: Conforms to plasterboard requirements.
- In full compliance with ISO 9002 and BS1230: Part 1: 1985: Produced under recognised quality standards.
- Complies fully with BS EN520: Verified performance across applications.
- Fire Rating (Reaction to Fire): A2: Approved for internal linings.
Related Articles
How To Build A Media Wall
What Is Plasterboard Made Of?
Exploring the Different Types of Plasterboard
How To Cut Plasterboard: A Step-by-Step Guide
