NATURALSoundBlok Reflective acoustic fence by Gramm Barrier Systems is a timber noise barrier system designed for high sound reduction in rural settings. Made from pressure-treated, FSC-certified timber, it uses a double acoustic board design to maintain an acoustic seal throughout its 30-year maintenance-free lifespan. Heights and bay widths are customisable to suit site needs.

  • Timber acoustic fence system for reducing noise in outdoor environments

  • Double acoustic board design maintains sound seal despite timber movement

  • 30-year maintenance-free design life for both barrier and timber posts

  • Made from incised, Tanalith E pressure-treated timber from FSC sources

  • Customisable heights from 0.5 to 10m and bay widths from 1 to 3m

  • Stainless steel fixings for durability

  • Suitable for installation on varying ground conditions

Applications

  • Roadside noise reduction

  • Railway noise barriers

  • Rural and countryside developments

  • Residential boundary fencing

  • Commercial and industrial sites

  • Environmental and infrastructure projects

Dimensions

Height range 0.5-10m

Bay width range 1-3m

Weight 26.4 kg/m²

Performance

Acoustic performance DL? 30dB

Design life of barrier 30 years

Design life of timber posts 30 years

Design life of steel posts 60+ years

Technical class B3

Materials

Timber (incised, Tanalith E pressure-treated, FSC certified)

Stainless steel fixings

Colours

Green or brown (Tanalith E treatment)

Finish

Tanalith E pressure-treated

Installation

Set into concrete foundations or bolted to concrete pads/strips

Galvanised steel or PPC posts with baseplates fixed using resin anchors or cast in cradles

Steel posts can be set into augered or bucket dug concrete foundations

Off-site manufacture or piece mill installation on site

Accreditations

CE Marked for use on Highways England schemes under CPR 2013

Compliant with Sector Scheme 2C for environmental barriers

Warranty

30-year guarantee on acoustic fencing and barriers

Maintenance

Maintenance-free for 30 years