The proprietary WALLSoundBlok® panel is our core modular wall solution, and the ideal choice for architects and developers seeking an effective noise barrier that’s aesthetically versatile as well as economical.

Composed of an EPS core with an external layer of fibre-reinforced cementitious sheets, the WALLSoundBlok® panel is a lightweight, impact resistant modular wall panel that possesses outstanding acoustic properties and a smooth designer finish.

The lightweight, modular design of the WALLSoundBlok® makes it quick and easy to install, dramatically reducing build times as well as the labour and machinery needed for challenging sites.


The core material and external skin of the WALLSoundBlok® can be customised to adjust the acoustic properties of the wall panel and achieve a Weighted Sound Reduction Index of up to 28dB. This outstanding acoustic performance ensures that building occupants are effectively protected from the ambient noise pollution of hectic urban environments. The WALLSoundBlok® cementitious skin confers the panel with an aesthetically pleasing exterior that can be painted, textured or decorated to match specific design goals or architectural styles.

The face dimensions of the WALLSoundBlok® can be adjusted to match a variety of installation conditions, with a panel span of 2.4 metres. The panel comes in thicknesses of 50mm or75mm, permitting its usage with a variety of WALLSoundBlok® posts.


  • Class = A0,B3
  • Acoustic Performance = DLʀ 26dB, Dlα 0dB
  • Design Life of barrier = 50 years
  • Design Life of Steel Posts = 60 + Years
  • Barrier Heights = From 0.6m – 3.0m (Bespoke heights available on request)
  • Bay Widths = From 1.0m – 2.4m
  • Weight = 15.30kg/m2
  • Material = Fibre Cement Panel
  • Finish = Powder Coated or Galvanised

Foundation types

Gramms WALLSoundBlok® noise barrier system can be either set into concrete foundations or bolted down to individual concrete pads or a continuous concrete strip/pad.

Fixing methods

a) Galvanised steel or PPC posts with baseplates can be fixed to concrete surfaces using chemfix resin anchors or cast in cradles.
b) Timber or steel posts can be set into augered or bucket dug concrete foundations.

Why Choose Gramm Barrier Systems?

Gramm Barrier Systems are one of the only noise barrier specialist in the country give a 30 year guarantee on all our Acoustic Fencing, Acoustic Barriers & Noise Barriers. We also confirm that the barriers are designed to be maintenance free for the full 30 years.

Some of our noise barrier range is fully CE Marked and compliant for use on Highways England schemes under CPR 2013. Also schemes using Sector Scheme 2C, for the supply and installation of Environmental Barriers

All ours materials and installations are to such a high standard we are the only noise barrier specialists to have all our works backed and insured by the government.

Gramm Barriers Noise Barrier systems give the highest level of sound reduction on the market which is why our product’s are specified on many major road and rail schemes.

Gramm Barrier Systems Ltd are fully committed to the highest level of customer service, professionalism and health & safety for every installation. Utilising quality materials in manufacturing, the highest level of expertise, Gramm aim to maintain a quality product that is secure and reliable.

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Speak to one of our experts to obtain a free quote on

08442 259002 / 01323 872243

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