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Acoustic Barriers

Timber Reflective Noise Barrier - Acoustic Fencing


Timber Reflective Noise Barriers are Highways Agency approved and conform to the latest Tec Memo HA 65/94 (Part 1) and HA 66/95 (Part 2), as well as BS EN 1793 and BS EN 1794.

Gramm Barriers systems have uniquely designed there Acoustic Fencing systems to offer the highest levels of sound reduction on the market! We have also designed our Noise Barriers to have a life span of 30 Years! We have put a lot of thought into our noise barrier range and have designed all our systems to be maintenance free for the full life span of the barrier.

Our Timber Reflective Noise Barriers can be installed in any location with either concrete in or base plated posts. All our installers have worked with us for over 15 Years and work to the high levels quality and professionalism we demand!


Comprising Gramms galvanized steel RSJ Acoustic Barrier posts or C24 stress graded timber posts dependent on height & location designed to take wind loadings & turning moments with specially manufactured galvanised steel rail cleats fixed to the posts with stainless steel hex bolts. Foundation and post size dependent on height and location. ST5 concrete to be used for post foundations.

Timber Noise Barrier panels to be constructed on site. Panels to comprise horizontal structural rails, and 1 no. gravel board, fixed to posts with galvanised mild steel cleats and stainless steel bolts and coach screws. Barrier clad face side only with vertical main noise barrier boards and cover boards and surmounted by once weathered capping, all securely fixed to rails and gravel board with stainless steel annular ring shank nails.

Timber Species: Douglas Fir & Larch – pressure treated Tanalith E preservative (Green) Ex Works.

Our Sound Proof Fencing is in accordance with the Specification for Highway Works Technical Memorandum HA66/95, BS EN1793: parts 1-5 and BS EN1794: parts 1 & 2.

Technical specification:

Environmental Barrier of this specification has a density of 13.96 kg/m2 and achieves a Weighted Sound Reduction in excess of 29Db A in Laboratory tests.

Why Chose a Gramm Barrier Systems Noise Barrier?

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.

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 is specified on many major road and rail schemes.

Also our noise barrier range is Highway Agency Approved to Sector Scheme 2C, for the supply and installation of Environmental Barriers, & HA Sector Scheme 4, for the treatment of timber products. (Noise Barrier is approved and certified to be adopted by the highways if required).

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. Gramm Barriers team of experts supply and install timber Reflective Barriers across the U.K.