Plasterboard Prices UK 2026: Cost per Sheet and per m²
Plasterboard is priced per sheet, but you work out your job in square metres, so it helps to see both. This guide lists what our plasterboard costs per sheet and per m² by type and thickness, using the live prices on our site, and shows how to turn a room size into a sheet count. All prices are ex VAT and correct at 28 October 2026; prices vary, so check the product page before you order.
Quick answer
Standard 12.5mm plasterboard (2400 × 1200mm) costs from £9.16 per sheet ex VAT, which is about £3.18 per m². 15mm standard board is £12.49 per sheet. Moisture resistant, fire resistant and acoustic boards cost more per sheet, because they are made to do a specific job. Browse every board in our plasterboard collection, or see boards alongside plaster, adhesive and beads in our plaster and plasterboard range.
Standard plasterboard prices per sheet
These are the general-purpose boards for walls and ceilings in dry rooms. A full 2400 × 1200mm sheet covers 2.88m², so the price per m² is the sheet price divided by 2.88.
| Standard board | 12.5mm per sheet | 12.5mm per m² | 15mm per sheet | 15mm per m² |
|---|---|---|---|---|
| Standard (tapered edge) | £9.16 | £3.18 | £12.49 | £4.34 |
| Standard (square edge) | £9.16 | £3.18 | £12.49 | £4.34 |
| Siniat Standard Board | £9.16 | £3.16 | £12.69 | £4.41 |
| Gyproc WallBoard | £10.87 | £3.77 | £14.05 | £4.88 |
Tapered edge boards are the usual choice if you will tape and joint; square edge boards suit skimming. If you are unsure which you need, our plasterboard sizes and types guide explains the difference.
Specialist plasterboard prices per sheet
Boards for wet rooms, fire protection and sound reduction cost more per sheet. Pick the board for the requirement on your drawings or from Building Control, not on price alone. A cheaper standard board that does not meet the specification costs more in the end.
| Specialist board | 12.5mm per sheet | 12.5mm per m² | 15mm per sheet | 15mm per m² |
|---|---|---|---|---|
| Moisture resistant (standard) | £12.49 | £4.34 | £14.58 | £5.06 |
| Fire resistant (standard) | £13.49 | £4.68 | £15.99 | £5.55 |
| Soundboard (standard) | £13.99 | £4.86 | £16.49 | £5.73 |
| Vapour board | £13.33 | £4.63 | £17.49 | £6.07 |
| Platinum | £17.08 | £5.93 | £22.08 | £7.67 |
| Siniat Fire Board | £14.08 | £4.89 | £16.81 | £5.84 |
| Siniat dB Board | £14.62 | £5.08 | £18.25 | £6.34 |
| Siniat Moisture Board | £16.65 | £5.78 | £20.83 | £7.23 |
| Gyproc FireLine | £16.00 | £5.56 | £19.22 | £6.67 |
| Gyproc SoundBloc | £16.98 | £5.90 | £20.77 | £7.21 |
| Gyproc Moisture Resistant | £18.61 | £6.46 | £22.37 | £7.77 |
Not sure between the moisture and vapour boards? Our moisture resistant vs vapour plasterboard guide covers it, and our fire-resistant drylining guide explains fire boards.
Plasterboard sheet sizes and prices
Most jobs use 2400 × 1200mm, but longer sheets mean fewer horizontal joints on tall walls and ceilings, and small sheets are easier to carry up stairs. These are the 12.5mm standard boards we list.
| Sheet size (12.5mm) | Edge | Per sheet | Per m² |
|---|---|---|---|
| 1800 × 900mm | square edge | £6.16 | £3.80 |
| 2400 × 1200mm | tapered or square | £9.16 | £3.18 |
| 2500 × 1200mm | tapered edge | £10.41 | £3.47 |
| 2700 × 1200mm | tapered or square | £11.24 | £3.47 |
| 3000 × 1200mm | tapered edge | £13.74 | £3.82 |
The smaller 1800 × 900mm sheet is cheaper per sheet but costs more per m², so use it where handling matters more than the lowest price.
How many sheets do you need?
- Work out the area to board. For walls, multiply length by height and subtract large openings. For ceilings, multiply length by width.
- Add about 10% for cuts and waste.
- Divide by the area of one sheet (2.88m² for 2400 × 1200mm) and round up.
Worked example: 30m² of wall at 12.5mm standard board. 30 × 1.1 = 33m², divided by 2.88 = 11.5, so you need 12 sheets. At £9.16 each that is £109.92 ex VAT for the boards. Our free plasterboard calculator does this for a whole room and builds a parts list including screws and tape, and our how much plasterboard, insulation and screws do I need guide shows how to count the fixings.
How to keep plasterboard costs down
- Order the right board once. Fire, moisture and acoustic boards are only needed where the specification says so. Use standard board elsewhere.
- Choose the sheet length that fits. A 2700 or 3000mm sheet on a tall wall can save cutting and jointing time, and might save waste.
- Do not skimp on thickness where it matters. 15mm board is stiffer than 12.5mm and helps at wider stud or joist spacings, so check the spacing before you decide.
- Add the extras to your order. Screws, tape, bead and filler all add up. See our drywall screws and beads, tapes and fillers.
- Order enough in one go. Plasterboard orders have a minimum order value for free delivery, so a single combined order is usually better than several small ones.
For larger quantities, see our page on plasterboard supply.
Frequently asked questions
How much is a sheet of plasterboard in the UK?
For our standard 12.5mm 2400 × 1200mm board it is £9.16 ex VAT per sheet at the time of writing, and prices vary. Specialist boards cost more.
What is the cheapest plasterboard?
Standard 12.5mm tapered or square edge board is our lowest-priced full-size sheet. It is suitable for general dry walls and ceilings but not for wet rooms or where fire or sound performance is required.
Is 15mm plasterboard much more expensive than 12.5mm?
For standard 2400 × 1200mm board the difference is £3.33 per sheet ex VAT, and prices vary by brand.
Are prices on your site with or without VAT?
Prices are shown ex VAT. VAT is added at checkout.
Do you sell by the pallet?
Our standard boards are priced per sheet, and larger orders are delivered by lorry. Contact us if you want a price on a full pallet quantity.
Prices vary, so check the product page before you order. Prices are shown ex VAT. We are delivery only (no collection), with a £400 ex VAT minimum order and free delivery in England. British Gypsum plaster and plasterboard can also go to mainland Wales and mainland Scotland (£400 ex VAT minimum plus £40 + VAT delivery). Other brands, such as Siniat and Gypfor, are delivered in England only (see delivery information). Call us on 03330 908479 (Mon–Thu 8am–5pm, Fri 8am–12pm), email sales@insulationwarehousedirect.co.uk, or order online.