MuteBoard® 4 Soundproof Plasterboard

£62.95 (Excluding VAT) Price promise
£75.54 (Including VAT)

  • Performance: up to 49dB on single course brick wall.*
  • Dimensions: 1200mm x 1200mm x 27mm (1.44m2)
  • Weight: 37kg
  • For: homes and workplaces.
  • Compliance: Compliant with Part E Building Regulations (England, Wales, Northern Ireland and the Republic of Ireland).*
  • Installation: 9 fixings for each MuteBoard™ 4 (fixings not included).
  • Where: wall applications on metal and wooden framework.

A four-ply acoustic board for wall soundproofing, its application is perfect for rooms that are limited in available space, learn more about MuteBoard™ 4 below.

In noise polluted homes or workplaces it is important to find practical ways to help address the many different problems, it is possible to achieve a peaceful environment with the right solution in place, although you may also be looking for something that is suited for tightly spaced environments.


MuteBoard® 4 is slim, practical and high in acoustic performance, and this means that you can use it from anything for the reduction of the common household noises when applied directly to brick, block or stud frames, or even elevated noise issues that can range from clearly heard conversation to electronics in operation when installing on to an isolated stud frame. To achieve the best possible solution for soundproofing, you will need to incorporate them into what is called 'Systems', and it is here you will find MuteBoard® 4 in a range of options. These offer ways of increasing acoustic performance by fitting them to decoupled stud frames or internal stud frames to split multiple rooms.


  • 1200mm x 1200mm x 27mm (1.44m2)
  • A hand-made product that may require trimming off excess.
  • For improving issues with airborne noise on the walls only.
  • Application to both concrete and timber structures.
  • Easy to apply a plaster skim layer directly.
  • Compliant with both Part E Building Regulations (England, Wales, Northern Ireland and the Republic of Ireland) and Building Standards Technical Handbook 2017 for Scotland for impact transmission.*


Noise is subjective, and this means that what could be a problematic noise for you, is not for others, and the level of disruption will depend on what level of sensitivity you have to a specific sound or event. Acoustic issues differ for homes or workplaces, but it is our MuteBoard® 4 that offers flexibility across your requirements for performance, cost and thickness.



Our most dense and highest performing of the MuteBoard® range is our MuteBoard® 4, it is a four-ply soundproof material, that comprises of two layers of Mass Loaded Vinyl at both two and four millimetres, each provides a level of damping, this means that due to its flexible mass it will help to break down vibration energy positively from rigid materials. Bonded between the mass layers is a six-millimetre closed cell foam, this helps to provide a degree of decoupling from the structure. We bond these mattings to soundproof plasterboard which is then ready for skim and plastering. You will find Acoustic Plasterboard throughout the soundproofing world, and we incorporate this into many of our acoustic systems and products, and it is its increased mass over standard plasterboard that makes it more efficient. 

MuteBoard® 4 is part of iKoustic's MuteRange core - these products are subjected to stringent testing in both laboratory and real-world environments providing the best possible solution for the purpose with a result you can trust.


You can find out more about our all-encompassing MuteRange by clicking on the icon below if you are interested in stocking or specifying our range for projects now and in the future, get in contact with us!




This product contains a high level of mass if there any structural concerns you will want to consult a Structural Engineer to discuss your requirements.

*Our Typical Performance Results and Noise Reduction Guidance are provided to indicate the results that have been achieved in previous tests but are not guaranteed to a specific site as multiple factors can affect this, you can view their variants on our 'Featured Systems' tab.

We endeavour to display the most up to date testing and assist in managing your expectations through each stage of the process so that the choice we make is the right one.


Weight37 kg
Length1200 mm
Width1200 mm
Height27 mm
Fire ratingFoam Class O, MLV Zero Burn Rate

We are always looking for the best ways to describe to you the world of soundproofing through introducing guides that range from the basic principles of sound, how to best soundproof surfaces and what to look for, and how to understand acoustic test data, to name a few! We want to help you come to the right decision, so whether this is through the use of our guides or talking to a member of our team - we are here to help!

How to Soundproof a Wall

A combination of the following will always result in a much improved acoustic performance.


  • Mass: the addition of more substantial materials to reduce sound energy, for example, added layers combined with soundproof plasterboard.
  • Separation: breaking contact with the surface or surfaces through the use of acoustic isolation clips or stud framing.
  • Damping: the reduction of vibration through the use of flexible, damping materials such as Tecsound.


Whether you're soundproofing an already existing home against neighbour noise,  specifying materials for a clients 'future-proofing' or adhering to acoustic regulations, it is important to select the correct system. One common, and often neglected thought in soundproofing is how to best treat low-frequency noise.  Low frequencies are not just found with industrial machinery or amplified music, but also in the human voice, in the use of soundbars or small Bluetooth speakers, and in impact noises such as closing doors. These examples also separation from the structure, and in our 'Systems' you will find MuteBoard 4 Stud solutions, this help to gain an improved performance for those who can stand to lose a greater loss of space. For very intrusive noises you can see our MuteClip® solutions which incorporate our MuteBoard 4 in the system.


It is essential to find the right solution to troublesome noises, noises that are now with greater intensity and abundance in the modern world. Homes and workplaces are both affected, although, in different ways, maintaining health and wellbeing should be a top priority in both of them. When noises disrupt your sleeping patterns or your concentration at work, this can lead to health issues over the longtime through the triggering stress. 


We understand that it is not always possible to incorporate significant losses of space with say, the introduction of a stud frame, so we provide different variances to suit what performance you need, your budget and thickness.


Learn more about what you need, and how to approach soundproofing walls below.


Ready to see how to use MuteBoard® 4 in your space? Select our 'Systems' tab to review acoustic performance, overall system depths and add all featured components to the cart in a press of a button.

Whatever your soundproofing project, grand or personal, come and speak to our team on 01937 588 226.

Handmade Product

All of our MuteBoard series are handmade at our warehouse and with this, there may be some slight overhang - this can easily be trimmed with a Stanley knife to make sure the MuteBoard butt up together tightly.

  • You will want to make sure that the surface you are applying to is flat to avoid any joints unsuccessfully matching up. A rendering of walls will help to not only create a level wall but to patch up significant gaps in the mortar and create a stronger surface to apply MuteBoard 4.
  • When affixing MuteBoard 4, you will want to use heavy duty fixings with 9 per board and remember to leave a 2-5mm gap from the adjacent surfaces. 
  • Fix MuteBoard® 4 with tapered edge vertically.
  • Fill all gaps, including the abutting of all joints and around the perimeter. The aim to make sure the surface is as airtight as possible as you are trying to reduce airflow that airborne noise transfers through, even the smallest of gaps.

MuteBoard® 4 is our best performing single acoustic panel that can be installed directly to brick and block walls, or you can also fit them to a new existing or new stud framing of both metal and timber. Each board requires multiple fixings per board and is an excellent space-saving method for soundproofing against low to mid-level noises in the home or for sound proofing an office to where airborne noise is an issue, and this includes medium level conversations and or light television use. You can improve this by installing on to a new stud frame fixed away from the existing partition and installing acoustic mineral wool in the newly created cavity. You can find all systems MuteBoard® 4 is featured in by clicking on the systems tab next to the FAQs here.

MuteBoard® 4 cannot be used to soundproof a ceiling, and the blue cross-linked foam is not suitable for a ceiling installation where fire regulations are concerned, we have a range of high performing ceiling soundproofing products to suit different requirements.

You can apply MuteBoard® 4 in a variety of different ways to help improve the acoustic performance, but it is always recommended to use acoustic mineral wool between any adjacent cavities to reduce ‘flanking transmission’ which can affect the overall performance. Sound will always find its way to an open cavity if a clear path permits it, going around the MuteBoard® 4 and appearing in one of these cavities.

MuteBoard® 4 is a hand laminated product which uses a tack adhesive to bond materials together; it is not suitable for installation with an adhesive as the mass would pull apart the tack, we only mechanical fixings with MuteBoard® 4.

Mute Board™ 4 cannot be installed on the floor as the acoustic plasterboard may suffer from cracking under pressure and will not help to accommodate any fluctuation in joist height, again leading to possible breaking of materials. We have a whole range of floor soundproofing solutions which you can view here.

Our guidance recommends the use of Nylon HammerFix 80mm when applying to brick and block walls, additional advice from a structural engineer of professional equal would be best sought with if there are any concerns, we do supply these fixings but are not included with the purchase of MuteBoard® 4.

Reverberation is an issue that affects sound internally and is not related to sound proofing in the sense that it requires something dense to reduce noise moving from room-to-room - it is about improving the sound in a single space. A sports hall would be a classic example of reverberation when somebody speaks they will attempt to shout over the noise, and as the clashing of sound bounces off the hard and reflective surface, this leads to the speech becoming unintelligible. MuteBoard® 4 is a dense product that will reflect the sound and will not work against treating this issue, for this, we offer a range of sound absorption materials to help with this issue in a wide range of applications including at home, in the office or hospitality environments including restaurants, nightclubs and cafés.

Fixing materials through the MuteBoard® 4 creates a direct path for the sound to travel back through and could crack the plasterboard in a way that makes it a less effective sound proofing system. With light fixtures and plug fixtures, we would recommend where possible to relocate them to another wall with the advice of a registered electrician under Part P of the Building Regulations to ensure the most effective sound proofing. MuteBoard® 4 has a lining applied over the top ready for skim and plastering. We would recommend the skim plaster layer applied before any decoration as it can be highly absorbent and will help to reduce small air gaps in the system. We recommend the use of Acoustic Socket Box Inserts anywhere you need to install sockets.

MuteBoard® 4 can be installed used for soundproofing wet rooms and bathrooms but would require the addition of a moisture board to stop direct moisture coming into contact with the acoustic plasterboard and causing possible damage to the material. Seek advice from a Damp or Bathroom fitting specialist before purchasing; we can work with such specialists to ensure the right combination of both sound proofing and damp proof materials are applied. The Cross-Linked PE Foam in the MuteBoard® 4 does not absorb moisture, nor is it prone to fungal or other damp related issues that affect chip foam.

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