Soundproofing Plasterboard | Acoustic Plasterboards

Looking to cut down noise transfer between rooms, flats, or busy hallways? Acoustic (soundproof) plasterboard adds mass and specialist cores that help block and damp sound, making it ideal for stud walls and ceilings in bedrooms, home offices, media rooms and multi-occupancy housing.

What Is Soundproofing Plasterboard?

Soundproofing plasterboard is a high-density gypsum board engineered to reduce airborne noise between rooms. Extra mass and a specialised core absorb and block sound waves, making it far more effective than standard plasterboard. It is ideal for internal walls, ceilings and partitions where peace and privacy are essential.

Featured Products

Knauf Soundshield Plus – Tapered Edge

• Sizes: 2400 × 1200 mm in 12.5 mm and 15 mm (TE)
• Why choose: High acoustic and moisture resistance; suitable for humid areas; can be screwed or dot-and-dab fixed; complies with BS1230: Part 1: 1985 (Type 1 & 3). 

Gypfor Sound Acoustic – Tapered Edge (2.4 m × 1.2 m)

• Thickness options: 12.5 mm and 15 mm (also available in pallet quantities: 12.5 mm × 42 sheets / 120.96 m², 15 mm × 36 sheets / 103.68 m²)
• Why choose: Acoustic core with greater surface hardness for improved impact resistance; non-combustible gypsum core, blue face; suitable for mechanical fixing to timber/metal studs or adhesive bonding. 

Fermacell High Performance Building Board (Price per pallet)

• Sizes: 12.5 mm × 1200 mm × 2400 mm (48 per pallet); 15 mm × 1200 mm × 2400 mm (40 per pallet)
• Why choose: High performance, multi-purpose board combining acoustic insulation, fire resistance, impact strength, inherent moisture resistance and exceptional screw-holding, ideal where durability meets acoustic control. 

Benefits of Soundproofing Panels

• Superior Noise Reduction – Thicker, denser boards deliver higher acoustic performance, limiting sound transfer from music, TV or conversation.
• Easy to Install – Cuts, screws and tapes like regular plasterboard, so no special tools are needed.
• Fire & Impact Resistance – Many products combine acoustic insulation with fire-rating and added durability for busy areas.
• Moisture Options – Moisture-resistant variants (e.g. Knauf Soundshield Plus) protect against damp and humidity.
• Cost-Effective Upgrade – A simple way to achieve Part E Building Regulations without major structural changes.

Applications of Acoustic Plasterboard Insulation

• Bedrooms, nurseries and home offices
• Party walls and ceilings in flats or HMOs
• Media rooms, home cinemas and recording spaces
• Busy corridors, stairwells and plant rooms
• Commercial spaces needing privacy, such as clinics or meeting rooms

Installation Tips for Acoustic Plasterboard

• Fit boards horizontally where possible and seal all perimeter gaps with acoustic sealant.
• Use acoustic mineral wool in the cavity and resilient bars on studs for enhanced performance.
• Stagger electrical sockets and avoid back-to-back boxes to prevent sound leakage.
• Double-layer boards with lapped joints for maximum decibel reduction.
• Follow the manufacturer's screw spacings and avoid overtightening to maintain acoustic integrity.

Why Choose Insulation4Less (I4L)

• Specialist Range – We stock leading brands like Knauf, Gypfor and Fermacell, carefully curated for acoustic performance.
• Competitive Pricing & Pallet Deals – Ideal for trade or large residential projects.
• Fast Nationwide Delivery – Clear lead-times and reliable shipping across the UK.
• Expert Support – Our team can guide you on product selection and installation best practices.