Gramm Barrier Systems range of vertical railing ArmaBar® systems offer a wide variety of sizes and styles. Each panel is made up of the highest quality materials in a galvanised finish. The panels can also be finished in a range of RAL colours to suit your requirements. Gramm Barrier Systems ArmaBar® railings offer exceptional quality, and high security whilst maintaining good visibility.


ArmaBarINTERLACED® looks great around public buildings, schools, retail premises, railways and industrial buildings. Featuring SOLID steel 12, 16,20 & 22mm solid vertical railings set at 112mm & 120mm centres. Security fixings are used fastening each panel to the galvanised 50 x 50mm, 70 x 70 or 80 x 80mm RHS steel posts, this railing system is built to last. (100 x 55mm RSJ post also available)

The ArmaBarINTERLACED® system have a curved interlaced top making them more suitable for low level railings which have the potential of the tops coming into contact with pedestrians.

All of the Gramm Barrier Systems ArmaBar® metal railing system are manufactured to meet the relevant British Standard rating.


Height: 1000mm/1200mm/1500mm/1800mm/2400mm (Bespoke height available on request)
Nominal Height: 1.0m/1.2m/1.5m/1.8m/2.4m (Bespoke heights available on request)
Infill: 12mm Diameter solid/CHS vertical bar railings. (1.0 – 1.2m High)
16mm Diameter soild/CHS vertical bar railings. (1.2 – 1.5m High)
20mm Diameter soild/CHS vertical bar railings. (1.8m + High)
22mm Diameter solid/CHS vertical bar railings. (2.4m + High)
Posts: 50 x 50mm RHS steel posts (1.0m – 1.5m High)
70 x 70mm RHS steel posts (1.8m High)
80 x 80mm RHS steel posts (2.4m High)
100 x 55mm RSJ posts available for all heights.
Fixings: M8 x 95 Cup square bolt with permacone nut
Set Posts: Set posts in holes 300 mm diameter x 600** mm deep, filled not less than half the depth with concrete
Maximum Posts Centres: 2720mm
Bottom of Fencing to Be: Posts set at 1m centres (Every other post concreted in 250 x 300mm foundations)
Other Requirements: PPC Colour Green RAL 6005. A full range of RAL Colours are available from Gramm Barrier Systems including marine grade and metallics.

Foundation types

Gramms ArmaBarINTERLACED® railing systems 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) 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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