Bulk Buy - 12.5mm Moisture Resistant Plasterboard (Tapered Edge)
2.4m x 1.2m
Express delivery, 2 to 3 working days*
FREE delivery over £500 excluding VAT
*Selected postcodes. Confirmed at checkout or call 03003 034 578.
Bulk Buy - 12.5mm Moisture Resistant Plasterboard (Tapered Edge)
2.4m x 1.2m
Trade customer? Log in to get an extra £50 off your order.
Discount ends 30 September 2026.
In the trade? If you have an account with us, log in and press Apply discount. Once your order reaches £1,000 or more ex VAT, your £50 off will apply at checkout.
No account yet? Create one, then call us on 03003 034 578. We'll review it and, if eligible, you can Apply the discount and get £50 off your order of £1,000 or more ex VAT.
Can't be combined with other discount codes.
Express delivery, 2 to 3 working days*
FREE delivery over £500 excluding VAT
*Selected postcodes. Confirmed at checkout or call 03003 034 578.
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Product Description
Product Description
In the rooms where damp is a fact of life, kitchens, bathrooms and utility rooms, 12.5mm moisture resistant plasterboard is the board to line the walls and ceilings with, and buying it in bulk keeps the material cost down on larger jobs. This is 12.5mm tapered edge wallboard built around a gypsum core treated to resist moisture, giving it more tolerance of humidity and occasional damp than a standard board, which helps hold off swelling, deterioration and surface mould in rooms where the air carries water.
Each board measures 2400mm x 1200mm and covers 2.88m², a full standard sheet that falls on 400mm and 600mm stud and joist centres and closes off large areas quickly. The tapered long edges are made for taping and jointing: the recess lets scrim tape and jointing compound sit flush with the board face, giving a smooth base ready to tile over or to skim and decorate. It fixes with standard tools, screwed to timber or metal stud frames or bonded to masonry, blockwork or brick by dot and dab.
The moisture resistance is built into the core, not just the surface. Additives worked through the gypsum slow the take-up of water, so the board holds its shape and integrity in humid conditions far better than standard wallboard. That is what makes it the right lining behind tiling on a bathroom wall, around a kitchen sink run or across a utility room ceiling, where standard board would be at risk over time.
Moisture resistant is not the same as waterproof. The board is made for humidity and intermittent moisture, not continuous wetting or direct water contact, so in wet rooms, shower enclosures and tanked areas a tile backer or cement board is the correct choice. Install it in line with the manufacturer's guidance and your project specification. Ordering in bulk suits larger bathroom, kitchen and utility fit-outs, multi-plot new build and repeat trade work, where lining a lot of damp-prone area at a lower cost per board tells on the material bill.
Key Benefits of 12.5mm Moisture Resistant Plasterboard:
- 12.5mm moisture resistant gypsum plasterboard for internal walls and ceilings in humid rooms.
- Gypsum core treated to resist moisture, reducing the risk of swelling, water damage and mould growth.
- Suited to kitchens, bathrooms and utility rooms where standard wallboard is not appropriate.
- Tapered long edges for taping and jointing to a flush finish, ready to tile over or to skim and decorate.
- 2400mm x 1200mm full sheet covering 2.88m², sized to suit 400mm and 600mm stud and joist centres.
- Fixes by screw to timber or metal stud frames, or bonds to masonry, blockwork or brick by dot and dab.
- Compatible with standard finishing, jointing and tiling techniques.
- Insulation UK own-brand board bought in bulk, at a lower cost per board on larger orders.
Good to know:
- Moisture resistant, not waterproof. Made for humidity and intermittent damp; for wet rooms, showers or tanked areas that take direct water, use a tile backer or cement board.
- Tapered on the long edges only. Cut ends and board ends butt together, so tape and fill those joints as you would any butt joint.
- A base for tiling. It gives a stable substrate for tiling in a bathroom or kitchen; follow the tile adhesive and weight guidance for the board.
- Store flat and dry. Keep boards flat, off the ground and out of the wet before fixing, and lift in pairs.
- Check the specification. Confirm the board suits the room and build-up against the manufacturer datasheet and your project requirements.
For lining the damp-prone rooms of a job in one go, 12.5mm moisture resistant plasterboard is the board to buy in quantity: a standard-size, taping-and-jointing board that stands up to humidity, takes tile or decoration cleanly and costs less per sheet the more you order.
Certifications & Standards
Certifications & Standards
Customer Information
Customer Information
Free delivery on orders over £500 ex-VAT. All orders below £500 (ex-VAT) are subject to a £50 delivery charge.
Ordering & Delivery
How do I place an order with Insulation UK?
You can place an order for delivery anytime online. If you want to collect from our distribution centre in South Yorkshire then please email us your requirements at sales@insulationuk.co.uk
and we will send a payment link and collection instructions. If you can’t see what you are looking for or need more information, then call our team on 03003 034 578 and we can sort your order from there.
How do I know what’s happening with my order and when I will receive it?
When you have placed your order, you will then receive an email confirmation, giving you an order reference number and asking you to double check everything is correct on your order such as delivery address, quantities etc. If there are any amendments to be made, then please reply to your confirmation email with any details.
Once the team has processed the order you will receive an email with a BY delivery date, this is the latest date you will receive your delivery.
Your final email will be a 24/48hr notification, on the day of the delivery if you need a more accurate ETA then contact the office on 03003 034 578.
Do you offer next-day delivery?
Yes, we do on certain lines, you will see our next day delivery products marked as NEXT DAY. Order before 12pm for next day delivery (charges will apply)
How much does delivery cost and how long will it take?
Standard delivery is £50 + VAT for all orders below £500 excluding VAT, above £500 excluding VAT delivery is free. Bespoke deliveries can be made but will incur charges. Each product page gives you an estimate delivery by date. For more accurate information call the team on 03003 034 578
Can I choose a specific delivery date or time slot?
We will endeavour to try and accommodate a preferred date, if you need a delivery on a certain day, then please call us on 03003 034 578.
Do you deliver nationwide?
We deliver across most of the UK; however, some postcodes are restricted due to their location. Check out our delivery map for more information. If you find that you are in area we don’t deliver to, we have access to a wide range of haulage options, please call the team on 03003 034 578 to discuss your requirements further.
Will the driver help unload the insulation products?
Most of our deliveries are made with vehicles with mechanical off-load (known as a moffett or fork-lift), the driver will leave them in a safe place of your choice. They will help as much as they are allowed but are not insured to bring anything into a property.
What happens if my order arrives damaged or incomplete?
In the unlikely event your order arrives damaged, then please contact within 48 hours at sales@insulationuk.co.uk with any images of the damage and the team will be in touch. If there is anything missing, then notify the team within 48 hours on 03003 034 578
What if my order doesn’t arrive and I have paid for trades to be on site, can I claim anything towards the costs I have incurred?
We advise not to have trades booked in and around the day of your delivery. Things can happen beyond our control, and your delivery may be delayed or abandoned. We cannot be held liable for any consequential loss such as tradesman wages etc.
Product Advice & Support
How do I know which insulation product is right for my project?
With such a variety of insulation products, we fully understand making sure you have the right one can seem daunting. Our team have over 50 years of experience in the construction industry and there isn’t a question they haven’t been asked! Speak to our technical team on 03003 034 578 and they will be happy to offer some help and guidance.
Do you offer technical advice or support before I buy?
Yes we do! Just call 03003 034 578 and ask for our technical team and we will be happy to support you.
Product Information & Suitability
Product descriptions on this website are provided as general guidance only and are not a substitute for the manufacturer’s Technical Data Sheet (TDS), fire classification information, and the project’s design/specification requirements. Suitability depends on the full build-up and intended use (including any requirement for encapsulation, coverings, and compliance with Building Regulations and the project fire strategy).
It is the customer’s responsibility to confirm, before ordering, that the product specification and performance are suitable for the intended application by reviewing the relevant TDS and taking professional advice where required. If you are unsure, contact us before purchase and provide your intended build-up so we can confirm what information we can support.
Nothing in this notice limits or excludes your statutory rights
Can I speak to someone to confirm product specifications?
Of course you can! There is also a range of data sheets and guides available on the product pages under Technical Information.
Are your products suitable for both DIY and trade customers?
Yes, they are. If you are new to DIY projects involving insulation,
then we advise to always do your research. We have a handy guides section which may help.
Do you offer fire-rated or eco-friendly insulation options?
Yes, we do. Fire ratings are indicated in the specification table on the product page, and our sustainable range is continually growing.
Pricing & Payments
Do you offer trade or bulk-buy discounts?
We always aim to offer the best price online; however we do offer project pricing for larger orders, speak to our sales team with your requirements on 03003 034 578.
What payment methods do you accept?
We accept all major cards including American Express, as well as Apple Pay, Google Pay and PayPal
Can I set up a trade account with credit terms?
We do offer trade accounts, however there are certain criteria we ask for, and any credit account application is subject to credit checks. Call the team on 03003 034 578 to discuss any credit applications.
Do your prices include VAT?
The website has a toggle at the top right of the page so the prices can be displayed including and excluding VAT. VAT, where applicable, is charged at checkout.
Returns & Cancellations
Can I return unwanted insulation products?
Contact the team via email sales@insulationuk.co.uk with the items you wish to return and any other information. Please note if we you need us to collect any unwanted items,
a collection fee will apply.
How do I arrange a return or exchange?
Contact the team via email sales@insulationuk.co.uk or check out our refund policy.
Are there any restocking fees?
Restocking charges will apply in certain instances, please contact the team via email at sales@insulationuk.co.uk check out our refund policy.
What if I’ve ordered incorrectly or need to cancel my order?
Contact the team via email as soon as possible. The best way to get in contact is to reply to any of the emails we have sent you, they will come straight through to the team and will have any relevant order information already on there.
Installation & Compliance
Do you offer installation services or just supply materials?
We do not offer any installation services; we are a supplier of insulation and building materials.
Can I get a datasheet or certificate of performance for your products?
Yes, data sheets can be found in the Technical Information drop down on the product page.
How should I store insulation products before installation?
There are a variety of insulation products each with their own storage instructions. Generally, please keep them off the ground, in a dry area, away from the elements.
Sustainability & Quality
Are your insulation products environmentally friendly?
This depends on the individual products, data sheets are available,
and any environmental benefits are noted on the product pages.
Do your products help reduce energy bills?
The correct insulation properly installed can reduce heat loss from a building and therefore help reduce energy costs.
Are your products made in the UK or imported?
With such a wide variety of products some are made in the UK and some are imported.
Customer Service & Support
How can I contact your support team?
By phone on 03003 034 578, email sales@insulationuk.co.uk or via our
webchat online
What are your opening hours?
Monday to Friday 8am to 5pm for sales and technical support, orders can be placed on line 24/7
How quickly can I expect a reply to my enquiry?
We aim to respond to our customers as quickly as possible.
Technical Details
- Brand:
- Insulation UK
- Material:
- Gypsum
- Length:
- 2400 mm
- Width:
- 1200 mm
- Thickness:
- 12.5 mm
- Unit Coverage:
- 2.88 m²
- Min Order Units:
- 40 Items
- Min Order Coverage:
- 115.20 m²
- Edge Type:
- Tapered
