new_releasesManufacturer price increase of 6.3% will apply for all deliveries on or after 01 July 2026

12.5mm Knauf Vapour Panel Square Edge Plasterboard 1800mm x 900mm

£11.95ex. VAT £7.38 per m2
£11.95ex. VAT
£7.38 per m2
Min
15
Minimum order of 15
Min
15
Minimum order of 15

Nationwide Delivery

Thu 18 Jun

Order by 2pm tomorrow
  • 15hrs
  • 22mins
  • 33secs

Delivery & Returns Info

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Delivery & Returns Information

Delivery charges vary by product category and order value. Items may ship from different suppliers and arrive separately, so delivery charges can be shown per part of your order at checkout.

Standard (Nationwide) Delivery

Insulation, Plasterboard and Drylining Products
ORDER VALUE DELIVERY CHARGE
Under £400 £45 ex. VAT
Over £400 ex. VAT FREE

Express Delivery

Express Delivery - Insulation and Plasterboard & Drylining
ORDER VALUE DELIVERY CHARGE
Under £400 £90 ex. VAT
Over £400 ex. VAT £55 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

View Full Delivery Policy

How delivery works

We work with a nationwide network of trusted suppliers. Items in your basket may be supplied by different suppliers and delivered separately. Where this applies, you will see delivery charges shown at checkout for each part of your order. We always aim to group products from the same supplier to keep delivery costs as low as possible.

Delivery areas

Delivery charges apply to mainland UK, excluding: AB, CA, CF, DD, DG, EH, EX, FK, KA, KW, KY, IV, LA, LD, LL, ML, NP, PA, PH, PL, SA, SY, TR, TQ and TD.

If your address is in one of these areas, we will contact you before processing your order to confirm any additional costs. We do not currently offer delivery outside the UK mainland.

What to expect on delivery day

  • Deliveries are typically kerbside.
  • Please ensure someone is on-site to accept delivery. For heavier items, help with offloading may be required.
  • Many building materials arrive on large vehicles. If access is restricted, a specialist vehicle such as a HIAB may be required and could incur an additional charge.

Why delivery can cost more than typical parcel delivery

Building materials often travel on larger vehicles and usually carry fewer drops per run than parcel networks. That is why delivery charges can be higher than standard e-commerce shipping.

Returns

Returns depend on what you have bought and whether there is anything wrong with it. For full details on eligibility, timeframes, and exclusions, please see our full policy.

View Full Returns Policy


Key Features

  • {{horizontal_split}} Can be layered to improve vapour barrier effectiveness
  • {{format_paint}} Provides a smooth, ready-to-finish surface
  • {{recycling}} Fully recyclable once the foil backing is removed
  • {{fact_check}} Suitable for partitions, linings and ceilings 

Technical Specification

Technical Specification
URN: 2002107
Product: Vapour Panel
Brand: Knauf Drywall
Material Type: Gypsum
Thickness: 12.5mm
Width: 900mm
Length: 1800mm
Weight: 13.45kg
Sales Unit: Sheet
Sales Unit Coverage: 1.62m2
Facing: Foil
Edge: Square
Manufacturer's Reference: 243714

Product Overview

Foil-backed vapour-control plasterboard sheet, measuring 1800 × 900mm with a 12.5mm square edge, for use in partitions, linings, and ceilings where condensation risk needs to be managed.

Features an aerated gypsum core finished with a metallised foil backing, creating a built-in vapour barrier that reduces moisture transfer through walls and ceilings. This helps control condensation, minimises the risk of mould growth, and supports thermal efficiency in kitchens, bathrooms, and utility areas.


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.

Smaller dimensions improve manoeuvrability on site, particularly in confined spaces or where access is limited, while still providing the same dependable performance as full-size boards.

At 12.5mm thick, the board provides the industry-standard depth for drylining, combining structural stability with integrated vapour control to manage condensation risks.

Features & Benefits

  • Foil backing: Acts as a vapour barrier to control moisture transfer and reduce condensation risk.
  • Integrated vapour control layer: Improves thermal efficiency and contributes to a healthier indoor environment.
  • Square edge profile: Creates a flush joint suited to skim plaster finishes.
  • Durable paper face: Provides a strong surface for paint, plaster skim, or other finishes.
  • Reaction to fire: Classified A2-s1, d0 - limited contribution to fire and minimal smoke production.
  • Low thermal conductivity: 0.19 W/mK - supports system U-value calculations.
  • Recyclable: Can be recycled at end of life once foil backing is removed.
  • Compact 1800mm x 900mm sheet: Easier to transport through restricted spaces.
  • 12.5mm thickness: Standard for drylining - basis for most stud, track, and lining specs.


Applications

  • Partitions: Provides vapour control in internal dividing walls.
  • Wall linings: Suitable for framed or masonry walls in moisture-sensitive areas.
  • Ceilings: Helps prevent condensation in kitchens, bathrooms, and utility rooms.

Installation Guidance

  • Fix with staggered joints: Improves stability and reduces weak points.
  • Cut by scoring and snapping: Ensures neat, accurate edges.
  • Seal joints and perimeter edges: Maintains vapour control integrity across the system.
  • Store flat in a dry, ventilated space: Protects boards from damage and moisture ingress.

Compliance & Performance

  • Compliance: EN 520 & EN 14190 - conforms to plasterboard and laminated plasterboard standards.
  • Reaction to fire: Classified A2-s1, d0 - limited contribution to fire and minimal smoke production.
  • Thermal conductivity: 0.19 W/mK - contributes to overall system energy efficiency.
  • Sustainability: Fully recyclable after removal of foil backing.




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