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19mm Knauf Plank Square Edge Acoustic Plasterboard 2400mm x 600mm
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19mm high-density acoustic plank for reducing sound transmission in separating walls and floors. Square edges suit skim plaster finishes. Suitable for use as part of multi-layer systems.
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Thu 25 Sep
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- 16hrs
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- 44secs
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Product Overview
19mm high-density acoustic plank for reducing sound transmission in separating walls and floors. Square edges suit skim plaster finishes. Suitable for use as part of multi-layer systems.
Delivery & Returns Information
How Our Delivery Works
We work with a nationwide network of trusted suppliers. As a result, items in your basket may be supplied by different suppliers and delivered separately. Where this applies, you'll see multiple delivery charges at checkout. We always aim to group products from the same supplier to keep delivery costs as low as possible.
Delivery Areas & Charges
Delivery charges listed on our website apply to mainland UK, excluding the following postcode areas: AB, CF, DD, DG, FK, KW, IV, LA, LD, LL, NP, PA, PH, SA, SY
If your delivery address falls within one of these postcode areas, we’ll be in touch before processing your order to confirm any additional delivery costs.
Please note: We do not currently offer delivery outside the UK mainland.
Standard (Nationwide) Delivery
| Insulation, Plasterboard and Drylining Products | |
|---|---|
| ORDER VALUE | DELIVERY CHARGE |
| Under £350 | £35 ex. VAT |
| Over £350 ex. VAT | FREE |
| Timber & Sheet, Building Materials, Joinery and Gardens & Landscaping Products | |
| ORDER VALUE | DELIVERY CHARGE |
| Under £100 | £15 ex. VAT |
| Between £100 - £300 ex. VAT | £10 ex. VAT |
| Over £300 ex. VAT | FREE |
| Screws & Fixings and Adhesives & Sealants | |
| ORDER VALUE | DELIVERY CHARGE |
| Under £50 | £5 ex. VAT |
| Over £50 ex. VAT | FREE |
Express Delivery
| Express Delivery - Insulation and Plasterboard & Drylining | |
|---|---|
| ORDER VALUE | DELIVERY CHARGE |
| Under £400 | £50 ex. VAT |
| Over £400 ex. VAT | £35 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 |
Returns
We offer a 30 day returns policy on any faulty products.
Key Features
- {{hearing_disabled}} Reduces sound transmission
- {{layers}} Can be layered for improved acoustic performance
- {{recycling}} Fully recyclable
- {{check_circle}} Compatible with Knauf Jointing Compounds & Paper Joint Tape
Technical Specification
| Material Type: | Gypsum |
|---|---|
| Thickness: | 19mm |
| Width: | 600mm |
| Length: | 2400mm |
| Sales Unit: | Sheet |
| Sales Unit Coverage: | 1.44m2 |
| Brand: | Knauf Drywall |
| Manufacturer's Reference: | 243627 |
| Weight: | 20.3kg |
| Edge: | Square |
Technical Downloads
Product Overview
High-density acoustic plasterboard, measuring 19mm in thickness with a square edge, for reducing airborne sound transmission in separating walls and floors.
Manufactured with a dense gypsum core, Knauf plank delivers substantial mass, which is essential for improving the acoustic performance of internal systems.
As part of a multi-layer construction, it acts as a mass layer that increases sound insulation and contributes to quieter, more comfortable internal environments in residential, commercial, and public buildings.
At 19mm thick, the board provides exceptional rigidity and sound-blocking performance, significantly outperforming standard plasterboard thicknesses.
Its greater density also improves impact resistance, durability, and fire safety, making it a key component in high-performance acoustic partitions and separating floor systems.
The square edge profile allows boards to butt together without a recess, making it suitable for textured finishes, direct decoration, or traditional jointing and plaster skim methods.
Features & Benefits
- High-density gypsum core: Adds significant mass to walls and floors, improving airborne sound reduction.
- 19mm thickness: Provides superior acoustic insulation, rigidity, and strength compared with standard boards.
- Improved impact resistance: Greater thickness increases durability in high-traffic areas.
- System integration: Functions as a core mass layer in multi-board wall and floor build-ups for enhanced performance.
- Fire performance: Classified A2-s1, d0 - limited contribution to fire and minimal smoke production.
- Thermal performance: Low thermal conductivity of 0.25 W/mK supports U-value calculations.
- Durable paper face: Provides a stable surface for direct decoration or skim plaster finishes.
- Sustainable choice: Fully recyclable at end of service life.
- Square edge profile: Creates a flush joint suited to skim plaster finishes.
Applications
- Separating walls: Improves airborne sound insulation between dwellings or internal spaces.
- Floor systems: Reduces noise transfer between storeys when used within layered floor assemblies.
- Partitions in high-traffic buildings: Adds durability and sound control in schools, offices, and hospitals.
- Multi-layer acoustic systems: Used in combination with insulation and other performance boards for maximum effect.
Installation Guidance
- Fix with staggered joints: Reduces sound leakage paths and strengthens the system.
- Cut by scoring and snapping: Ensures accurate sizing and clean edges.
- Joint treatment: Finish with Knauf Jointing Compounds and Knauf Paper Joint Tape for a smooth surface.
- Handle in pairs where possible: The increased density makes boards heavier than standard plasterboard.
- Store flat in dry, ventilated conditions: Prevents damage and protects from moisture ingress.
Compliance & Performance
- Compliance: EN 520, Type A - meets plasterboard standards for strength and durability.
- Reaction to fire: Classified A2-s1, d0 - limited contribution to fire and minimal smoke production.
- Thermal conductivity: 0.25 W/mK - contributes to U-value calculations in wall and floor systems.
- Recyclability: Fully recyclable after use, supporting sustainable construction practices.
