Moisture Resistant Plasterboard Solutions
Waterproof Boards for Bathrooms & Wet Areas
At Armstrong Supplies, we provide trade-grade moisture resistant plasterboard, designed to perform in high humidity environments, including bathrooms, kitchens and showers. Our moisture board options promise long-lasting protection where you need it most.
Trade-only pricing - Built for builders, with up to 70% off via your free Trade Card.
Fast UK-wide delivery - Most orders arrive in 3-5 working days.
Expert advice - Available via live chat, phone or email.
Bulk discounts & tiered pricing - Suited for large orders.
Order moisture-resistant plasterboard online today - built for trade, delivered fast.
Explore our range of Trade Deals for industry solutions at unbeatable prices!
Waterproof Plasterboard at Amazing Prices
Enjoy high-performance bathroom plasterboard without the hefty price tag. Our moisture-resistant plasterboard is industry standard and features exclusive savings for builders, renovators and landscaping professionals.
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Top brands stocked - Shop trade-grade plasterboard products from brands like Gyproc and Knauf.
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Perfect for wet area installations - Water resistant plasterboards for kitchens and plasterboard for bathrooms available.
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BS EN 520 Type H1 or H2 - Choose a top-quality moisture resistant plasterboard for the right level of water resistance.
From moisture boards to full site supply, we keep your project moving with fast delivery, expert support and prices made for the trade.
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Register for your FREE Trade Card with us today & enjoy discounts of up to 70%! |
Bathroom Plasterboard: Ideal Applications
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Plasterboard for Showers |
Waterproof Plasterboard for Kitchens |
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Bathroom Plasterboard |
Water Resistant Plasterboard for Walls |
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Moisture Board for Utility Rooms |
Commercial Moisture Plasterboard |
Water Resistant Plasterboard: Technical Specifications
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Specification |
Details |
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Board Types |
Type H1: < 5% water absorption Type H2: < 10% water absorption |
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Fire Rating |
Euroclass A2-s1,d0 - limited combustibility |
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Density |
Approx 700 kg/m³ for strength & sound insulation |
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Standard Sizes |
2400 x 1200mm |
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Board Facer Colour |
Typically green (may vary by brand) |
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Installation |
Fix to metal or timber studwork |
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Finishes |
Suitable for tilling, painting or wallpapering |
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Compliance |
Fully complies with BS EN 520 (H1/H2) moisture resistance standards |
Moisture Resistant Plasterboard: FAQs
How quickly can I get moisture resistant plasterboard delivered?
We offer fast UK mainland delivery - most orders arrive within 3–4 working days, with same-week options available. Need it on-site fast? Order online today and we’ll do the rest.
Can I use waterproof plasterboard on ceilings?
Absolutely. Moisture resistant plasterboard is commonly used on bathroom ceilings, especially where steam builds up. Pair it with moisture-rated jointing compounds and paint for a durable, mould-resistant finish.
What’s the difference between H1 and H2 plasterboard?
H1 moisture resistant plasterboard absorbs ≤ 5% water - ideal for shower walls and areas with direct water exposure.
H2 moisture resistant plasterboard absorbs ≤ 10% water - suitable for bathroom ceilings, kitchens, and utility rooms.
Both types meet BS EN 520 moisture resistance standards, but H1 offers higher protection.
Is bathroom plasterboard mould-resistant?
Yes. Bathroom plasterboard (also called moisture resistant plasterboard) is designed to reduce water absorption, which helps prevent mould growth. For high-risk areas like ceilings or behind tiles, we recommend H1-rated boards with moisture-resistant finishing compounds.
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Knauf
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Gyproc
Gyproc H Tilebacker 12.5mm Plasterboard 2400x1200mm
£67.25Unit price /UnavailableIn stock (100 units)-
Knauf
Knauf Moisture Resistant Plasterboard 2700x1200x12.5mm Tapered Edge
£23.24Unit price /UnavailableIn stock (100 units) 
Gyproc
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Gyproc
Gyproc Moisture Resistant Plasterboard 3000x1200x12.5mm Tapered Edge
£26.40Unit price /UnavailableIn stock (100 units) -
Knauf
Knauf Moisture Resistant Plasterboard 1200x2400mm Tapered Edge
From £18.08Unit price /UnavailableIn stock (200 units) -
Gyproc
Gyproc Moisture Resistant Plasterboard 2400x1200mm Tapered Edge
From £20.31Unit price /UnavailableIn stock (200 units)
Our customers tell it better than we do!
Very easy
Very easy, nice people and great service from start to finish. Kept up to date regarding delivery so very happy indeed. Would definitely recommend, well done
Ultra fast
Ultra fast delivery, technically superlative company, their products are light years ahead of all others. Unbelievable prices. I have been in construction for nearly 70 years now and am still working every day. This company is why I keep getting up in a morning. Thank you dear sirs/ Madam for making life easier
Great Speedy service
Great speedy service. OSB boards arrived 1 week ahead of schedule. Driver asked where he could unload rather than just unload. Would definitely recommend.
The delivery was exceptional
The delivery was exceptional. We were expecting it on 23rd, we got it on 22nd. It was put in the exact spot we needed it to be put.
Competitive Price and Fast Delivery
They were very helpful when choosing the products that I wanted to order and they were fast at delivering. I was particularly impressed that they telephoned us afterwards to ensure the lintel arrived safely which is very unusual.
Grinning like an Armstrong Cheshire Cat
Easy fast ordering on line Delivered exactly as agreed in good condition. And left us all as the title of this review! Thank You