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12.5mm British Gypsum Gyproc Fireline Plasterboard Tapered Edge 2400mm x 1200mm (8′ x 4′)
12.5mm British Gypsum Gyproc Fireline Plasterboard is crafted to boost fire resistance in walls and ceilings. Its strong core and smooth finish ensure protection and easy installation for safety-focused projects.
£16.33£19.60 Ex VATInc VAT£5.67£6.80 Per M2 Add to cart -
12.5mm British Gypsum Gyproc Moisture Resistant Plasterboard Tapered Edge 2400mm x 1200mm (8′ x 4′)
12.5mm British Gypsum Gyproc Moisture Resistant Plasterboard is perfect for humid areas, with a water-resistant core and smooth, durable finish.
£20.48£24.58 Ex VATInc VAT£7.11£8.53 Per M2 Add to cart -
12.5mm British Gypsum Gyproc SoundBloc Moisture Resistant Plasterboard Tapered Edge 2400mm x 1200mm (8′ x 4′)
12.5mm British Gypsum Gyproc SoundBloc Moisture Resistant Plasterboard combines enhanced sound insulation with moisture resistance, offering a robust and versatile solution for controlling noise and tackling damp conditions in one smart panel.
£25.33£30.40 Ex VATInc VAT£8.80£10.56 M2 Add to cart -
12.5mm British Gypsum Gyproc SoundBloc Plasterboard Tapered Edge 2400mm x 1200mm (8′ x 4′)
12.5mm British Gypsum SoundBloc Plasterboard minimises noise transmission, making it perfect for creating quieter spaces.
£18.08£21.70 Ex VATInc VAT£6.28£7.54 M2 Add to cart -
12.5mm British Gypsum Gyproc Wallboard Plasterboard Tapered Edge 2400mm x 1200mm (8′ x 4′)
12.5mm British Gypsum Gyproc Wallboard is a durable, easy-to-install plasterboard ideal for interior walls and ceilings.
£12.61£15.13 Ex VATInc VAT£4.38£5.26 M2 Add to cart -
12.5mm Gypfor Fire Plasterboard Square Edge 1800mm x 900mm (6′ x 3′) Pallet of 74 Boards
12.5mm Gypfor Fire Plasterboard is suitable for interior drywall applications. In its composition are added additives that give it greater resistance to fire than other boards.
£530.00£636.00 Ex VATInc VAT£4.42£5.30 Per m2 Add to cart -
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1-30 31-125 126+ £11.35£13.62 £11.18£13.42 £11.07£13.28 
12.5mm Gypfor Fire Plasterboard Tapered Edge 2400mm x 1200mm (8′ x 4′)
12.5mm Gypfor Fire Plasterboard is suitable for interior drywall applications. In its composition are added additives that give it greater resistance to fire than other boards.
£11.35£13.62 Ex VATInc VAT£3.94£4.73 Per m2 Add to cart -
12.5mm Gypfor Fire Plasterboard Tapered Edge 2700mm x 1200mm (9′ x 4′) Pallet of 42
12.5mm Gypfor Fire Plasterboard is suitable for interior drywall applications. In its composition are added additives that give it greater resistance to fire than other boards.
£540.00£648.00 Ex VATInc VAT£3.97£4.76 Per m2 Add to cart -
12.5mm Gypfor Fire Plasterboard Tapered Edge 3000mm x 1200mm (9.8′ x 4′) Pallet of 42
12.5mm Gypfor Fire Plasterboard is suitable for interior drywall applications. In its composition are added additives that give it greater resistance to fire than other boards.
£600.00£720.00 Ex VATInc VAT£3.97£4.76 Per m2 Add to cart -
12.5mm Gypfor Glass Shield Plasterboard Tapered Edge 2400mm x 1200mm (8′ x 4′) Pallet of 30
12.5mm Gypfor glass shield plasterboard is suitable for indoor and semi-weather-exposed applications in high-humidity areas.£1,200.00£1,440.00 Ex VATInc VAT£13.89£16.67 Per m2 Add to cart -
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1-30 31-125 126+ £11.54£13.85 £11.37£13.64 £11.19£13.43 
12.5mm Gypfor Moisture Resistant Plasterboard Tapered Edge 2400mm x 1200mm (8′ x 4′)
12.5mm Gypfor Moisture Resistant Plasterboard is suitable for indoor applications, available in various thicknesses and longitudinal edge finishes, designed to meet general construction requirements. Plasterboard composed of a non-combustible gypsum core, specially formulated, moisture- and mold-resistant, integrally involved in coating paper, color green. The product is ready for a variety of treatments and finishes after adequate surface preparation.
£11.54£13.85 Ex VATInc VAT£4.01£4.81 Per m2 Add to cart -
12.5mm Gypfor Moisture Resistant Plasterboard Tapered Edge 2700mm x 1200mm (9′ x 4′) Pallet of 42
12.5mm Gypfor Moisture Resistant Plasterboard is suitable for indoor applications, available in various thicknesses and longitudinal edge finishes, designed to meet general construction requirements. Plasterboard composed of a non-combustible gypsum core, specially formulated, moisture- and mold-resistant, integrally involved in coating paper, color green. The product is ready for a variety of treatments and finishes after adequate surface preparation.
£534.77£641.72 Ex VATInc VAT£4.42£5.30 Per m2 Add to cart -
12.5mm Gypfor Moisture Resistant Plasterboard Tapered Edge 3000mm x 1200mm (9.8′ x 4′) Pallet of 42
12.5mm Gypfor Moisture Resistant Plasterboard is suitable for indoor applications, available in various thicknesses and longitudinal edge finishes, designed to meet general construction requirements. Plasterboard composed of a non-combustible gypsum core, specially formulated, moisture- and mold-resistant, integrally involved in coating paper, color green. The product is ready for a variety of treatments and finishes after adequate surface preparation.
£600.00£720.00 Ex VATInc VAT£3.97£4.76 Per m2 Add to cart -
12.5mm Gypfor Platinum Plasterboard Tapered Edge 2400mm x 1200mm (8′ x 4′) Pallet 30
12.5mm Gypfor Platinum plasterboard is made for interior drywall systems that need enhanced fire resistance, improved strength, and greater protection against bending and impact.
£530.00£636.00 Ex VATInc VAT£6.13£7.36 Per m2 Add to cart -
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1-30 31-125 126+ £11.54£13.85 £11.37£13.64 £11.25£13.50 
12.5mm Gypfor Soundproof Plasterboard Tapered Edge 2400mm x 1200mm (8′ x 4′)
12.5mm Gypfor Soundproof plasterboard (commonly known as acoustic plasterboard) is a version of standard plasterboard and contains a strong level of sound insulation, thanks in large part to its density.
£11.54£13.85 Ex VATInc VAT£4.01£4.81 Per m2 Add to cart -
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1-30 31-125 126+ £12.67£15.20 £12.48£14.98 £12.29£14.75 
12.5mm Gypfor Vapour Plasterboard Tapered Edge 2400mm x 1200mm (8′ x 4′)
12.5mm Gypfor Vapour plasterboard is suitable for interior drywall applications in areas of humidity. 12.5mm Gypfor plasterboard is composed of a non-combustible gypsum core, and grey paper on the front face.
£12.67£15.20 Ex VATInc VAT£4.40£5.28 Per m2 Add to cart -
12.5mm Gypfor WallBoard Plasterboard Square Edge 1800mm x 900mm (6′ x 3′) Pallet of 90 Boards
12.5mm Standard Gypfor plasterboard is suitable for indoor applications, available in various thicknesses and longitudinal edge finishes, designed to meet general construction requirements.
£583.24£699.89 Ex VATInc VAT£4.00£4.80 Per m2 Add to cart -
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1-41 42+ £8.72£10.46 £8.46£10.15 12.5mm Gypfor WallBoard Plasterboard Square Edge 2400mm x 1200mm (8′ x 4′)
12.5mm Standard Gypfor plasterboard is suitable for indoor applications, available in various thicknesses and longitudinal edge finishes, designed to meet general construction requirements.
£8.72£10.46 Ex VATInc VAT£3.03£3.64 Per m2 Add to cart -
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1-41 42+ £8.69£10.43 £8.43£10.12 
12.5mm Gypfor WallBoard Plasterboard Tapered Edge 2400mm x 1200mm (8′ x 4′)
12.5mm Standard Gypfor plasterboard is suitable for indoor applications, available in various thicknesses and longitudinal edge finishes, and designed to meet general construction requirements.
£8.69£10.43 Ex VATInc VAT£3.02£3.62 Per m2 Add to cart -
12.5mm Gypfor WallBoard Plasterboard Tapered Edge 2500mm x 1200mm (8.20′ x 4′) Pallet of 42
12.5mm Standard Gypfor plasterboard is suitable for indoor applications, available in various thicknesses and longitudinal edge finishes, designed to meet general construction requirements.
£408.00£489.60 Ex VATInc VAT£3.37£4.04 Per m2 Add to cart -
12.5mm Gypfor WallBoard Plasterboard Tapered Edge 2700mm x 1200mm (9′ x 4′) Pallet of 42
12.5mm Standard Gypfor plasterboard is suitable for indoor applications, available in various thicknesses and longitudinal edge finishes, designed to meet general construction requirements.
£404.00£484.80 Ex VATInc VAT£2.97£3.56 Per m2 Add to cart -
12.5mm Knauf Fire Panel Plasterboard Tapered Edge 2400mm x 1200mm (8′ x 4′)
12.5mm Knauf Fire Panel Plasterboard offers superior fire protection. The additional fire protection properties enable Knauf Fire plasterboard to be used where increased fire performance is required such as in domestic separating walls, garages and corridors. When used as part of a Knauf system, Fire Panel will give up to 120 minutes of fire protection.
£13.11£15.73 Ex VATInc VAT£4.55£5.46 M2 Add to cart -
12.5mm Knauf Moisture Panel Plasterboard Tapered Edge 2400mm x 1200mm (8′ x 4′)
12.5mm Knauf Moisture Panel Plasterboard is a high performance moisture resistant plasterboard for use in internal areas of high humidity such as kitchens and bathrooms. Knauf moisture resistant plasterboard is ideal for receiving a plaster finish or for direct decoration.
£16.31£19.57 Ex VATInc VAT£5.66£6.79 M2 Add to cart -
12.5mm Knauf Sound Panel Plasterboard Tapered Edge 2400mm x 1200mm (8′ x 4′)
12.5mm Knauf Sound Panel Plasterboard offers enhanced levels of sound performance and a greater density, making it ideal acoustic plasterboard for residential applications or where a minimum of 10kg/m2 is required. Knauf Sound Plasterboard is ideal for use in conjunction with Robust Details. Part E compliant.
£13.31£15.97 Ex VATInc VAT£4.62£5.54 M2 Add to cart -
12.5mm Knauf Soundshield Plus Plasterboard Tapered Edge 2400mm x 1200mm (8′ x 4′)
12.5mm Knauf Soundshield Plus Plasterboard offers enhanced acoustic performance, excellent fire resistance and a severe duty impact rating. When Knauf plasterboard is used as part of a Knauf system, Soundshield Plus acoustic plasterboard will give up to 54 Db (Rw) acoustic sound reduction which makes it ideal for use in high traffic areas such as schools and hospitals.
£15.88£19.06 Ex VATInc VAT£5.51£6.61 M2 Add to cart -
12.5mm Knauf Vapour Panel Plasterboard Tapered Edge 2400mm x 1200mm (8′ x 4′)
12.5mm Knauf Vapour Panel Plasterboard has a metallised polyester foil laminated on the grey paper face, making this laminated Knauf plasterboard resistant to vapour.
£14.94£17.93 Ex VATInc VAT£5.19£6.23 M2 Add to cart -
12.5mm Knauf Wallboard Plasterboard Tapered Edge 2400mm x 1200mm (8′ x 4′)
12.5mm Knauf Wallboard Plasterboard ideally suits to receive a plaster finish, or for direct decoration. Knauf standard plasterboard will meet all basic drylining requirements, it is strong, versatile, and good value.
£9.77£11.72 Ex VATInc VAT£3.39£4.07 M2 Add to cart -
12.5mm Siniat GTEC Moisture Board Plasterboard Tapered Edge 2400mm x 1200mm (8′ x 4′)
The 12.5mm Siniat GTEC Moisture Board is specifically designed to withstand high humidity areas,protecting against moisture damage. Its moisture-resistant core and durable surface make it an ideal solution for maintaining the longevity and safety of your building in challenging environments.
£16.40£19.68 Ex VATInc VAT£5.69£6.83 M2 Add to cart -
12.5mm Siniat GTEC dB Sound Board Plasterboard Tapered Edge 2400mm x 1200mm (8′ x 4′)
12.5mm Siniat GTEC dB Sound Board minimizes noise transfer between walls and rooms. Its durable, high-performance design makes it a top choice for creating quieter and more comfortable environments at home or in commercial settings.
£14.77£17.72 Ex VATInc VAT£5.13£6.16 M2 Add to cart -
12.5mm Siniat GTEC Fire Board Plasterboard Tapered Edge 2400mm x 1200mm (8′ x 4′)
12.5mm Siniat GTEC Fire Plasterboard is a high-performance solution for improving fire safety with limited combustibility in walls and ceilings. Its durability and straightforward installation makes it a practical choice for both professionals and DIY projects.
£14.41£17.29 Ex VATInc VAT£5.00£6.00 M2 Add to cart -
12.5mm Siniat GTEC Standard Board Plasterboard Tapered Edge 2400mm x 1200mm (8′ x 4′)
12.5mm Siniat GTEC Standard Plasterboard is a reliable choice for creating smooth, sturdy walls and ceilings in interior spaces. It’s easy to handle and install thanks to its lightweight design, yet strong enough to ensure a durable and high-quality finish.
£9.42£11.30 Ex VATInc VAT£3.27£3.92 M2 Add to cart -
15mm Gypfor Platinum Plasterboard Tapered Edge 2400mm x 1200mm (8′ x 4′) Pallet of 24
15mm Gypfor Platinum plasterboard is made for interior drywall systems that need enhanced fire resistance, improved strength, and greater protection against bending and impact.
£530.00£636.00 Ex VATInc VAT£6.13£7.36 Per m2 Add to cart -
27mm British Gypsum Gyproc ThermaLine PLUS Plasterboard Tapered Edge 2400mm x 1200mm (8′ x 4′) Pallet of 30
27mm British Gypsum Gyproc ThermaLine PLUS Plasterboard is a high-performance insulated drywall solution, combining a strong gypsum core with an advanced thermal layer to enhance energy efficiency.
£1,855.39£2,226.47 Ex VATInc VAT Add to cart
12.5mm Plasterboard
12.5mm plasterboard is a standard type of gypsum sheet used to line ceilings and internal walls. At this thickness, 12.5 millimetre panels offer a good balance of rigidity and lightness. They are easy to handle on site but stiff enough to remain flat, making them the go-to choice for most general lining jobs.
What is plasterboard 12.5mm?
Plasterboard 12.5mm is a gypsum-core panel faced with paper and manufactured to a thickness of 12.5 millimetres. That thickness is a common industry size because it works well for single-layer linings, partitions, and ceilings.
It is fixed directly to studs, ceilings, or battens, and also works well with plasterboard adhesive in dot and dab fixing methods.
The panel comes in various performance types that meet most general building needs. Some of the most common types available include acoustic plasterboard 12.5mm panels, 12.5mm tapered edge plasterboard sheets, and 12.5mm FireLine plasterboard.
What is 12.5 plasterboard used for?
12.5mm plasterboard panels are commonly used for interior wall linings, ceilings, partitions, and many retrofit tasks.
Depending on the variant chosen —standard, fire-resistant, acoustic, or moisture-resistant —the same 12.5mm board can be used to boost fire protection, minimise sound transfer, or provide extra moisture resistance in bathrooms and kitchen spaces.
It is easily fitted on both solid masonry and metal or timber frames.
Types of 12.5mm plasterboards
At Insulation Wholesale, you’ll find 12.5mm plasterboards for varying job requirements:
Standard 12.5mm plasterboard
A general-purpose lining board for everyday walls and ceilings.
It is lightweight and easy to resize, making it perfect where extra fire, acoustic, or moisture performance is not necessary.
Fire plasterboard 12.5mm (12.5mm FireLine)
Features a gypsum core reinforced with glass fibre and other additives to provide extended fire resistance. It is added to improve fire protection around stairwells, garages, some escape routes, or where a specification calls for a fire-rated partition.
FireLine boards are tested to building standards and are sold in sizes that match typical ceiling and wall systems.
Acoustic plasterboard 12.5mm (soundboard)
These are manufactured to reduce sound passing through walls and ceilings. They’re denser or specially engineered, so a single layer improves privacy and reduces airborne noise.
They are a good choice for separating bedrooms, home offices, and flats, or any room where quieter conditions are needed.
For stronger acoustic performance, use with acoustic systems combining insulation and double plasterboard layers.
12.5mm Tapered edge plasterboard
Tapered edges make jointing quicker and neater. The slight bevel creates a groove for tape and joint compound that can be feathered out to an invisible seam.
Use tapered edge boards to tape and joint rather than skim. They save finishing time and give a clean, painted finish.
Moisture-resistant / Foil backed plasterboard
Moisture-resistant 12.5mm boards (sometimes called “moisture panel”) have treated cores and paper to resist brief exposure to humidity.
Foil-backed options add a metallised foil layer that acts as a vapour control layer and can help limit interstitial condensation in cold/warm junctions.
They are useful in garages, utility rooms, and areas where extra vapour control is desired, but not suitable for continuously wet areas like showers without a suitable tanking system.
Other specialist 12.5mm boards
There are also insulated or foil-faced 12.5mm products, as well as specialist performance boards designed for specific ceiling or wall systems. Select these to match the wall or ceiling build-up and the required performance, whether thermal, acoustic, or fire.
Benefits of 12.5mm plasterboards
Installing 12.5 boards offers these benefits:
- Versatile – For ceilings, walls, partitions, and lining systems.
- Balanced strength and weight – They are stiff enough for single-layer use, but still easy to lift.
- Clean finish – They accept tape & jointing well.
- Performance options – Choose FireLine, acoustic, moisture-resistant, or foil-backed to suit the room.
- Speed on site – Common size that is easy to source and works with standard fixings and compounds.
Why choose our 12.5mm plasterboard?
Here is why customers buy 12.5 plasterboard from Insulation Wholesale:
- We stock a wide range of branded, trade-quality 12.5mm plasterboards, including standard, acoustic, FireLine, tapered edge, and foil options.
- Boards are selected for dimensional tolerances across batches and delivered to the site in excellent condition.
- We provide value for money with project-ready stock at low wholesale prices.
- Fast nationwide delivery is available on all orders.
FAQ
Where to buy 12.5mm plasterboard?
Buy 12.5mm plasterboard online directly from Insulation Wholesale. We stock pallet and single-sheet options and can advise on which board is best suited to a particular wall or ceiling. Plus, we make fast UK delivery on all bulk orders.
How many 12.5mm plasterboard on a pallet?
Pallet counts vary by producer and sheet size. Most 2400 x 1200mm and 2440 x 1220mm board pallets hold 42, 60, 64, or 72 sheets.
Quantities can also vary based on whether the panels are tapered-edge or heavier performance models. It is best to confirm the exact pallet count on the product page before ordering.
How to cut 12.5mm plasterboard?
- Mark the cut with a straightedge.
- Score the face paper firmly with a utility knife.
- Snap the board along the score.
- Fold back, then trim the backing paper.
Support the board to avoid breakage when making long cuts. Always wear protective gear, especially when cutting indoors.
How much adhesive for 12.5mm plasterboard?
Coverage depends on the adhesive type and the dot-and-dab pattern. But a 25kg bag typically covers 4.2–4.6 m² when dot-and-dabbed.
How to fit 12.5mm plasterboard?
Secure with drywall screws for timber or metal framing, and follow the manufacturer's guidance for ceilings. Use screws spaced roughly 230mm apart across the board field (or 300mm on walls). Use 150mm spacing at board ends for secure fixing.
For masonry, dot-and-dab a suitable adhesive product or use mechanical fixings.
Once securely fitted, tape the joints, apply joint compound, then sand. You can now paint or apply a skim coat to get a plaster finish.
