SR1 Rated Fencing Duo8 | A1 Rated Fencing | Fences | Zaun Ltd

05. Duo8 (A1) SR1 Rated Fencing

Duo8 A1 rated fencing system (SR1 rated under issue 7) is a double wire welded mesh fencing system, ideal for applications where Secured By Design accreditation may be required.

The SR rated fencing system offers the same product benefits as the standard Duo8 but with added security and tamper-resistant clamp bars and fixings.

The Duo8 SR1 rated fencing system has been Secured By Design approved by the Association of Chief Police Officers and Security Rating certification to LPS1175 and entry into the Red Book from the Buildings Research Establishment (BRE), achieving the security rating SR1 (under issue 7) and A1 under issue 8.

The Duo8 SR1 is manufactured with dual 8mm horizontal wires sandwiching single 6mm vertical wires. This produces a 50mm x 200mm mesh pattern that is strong but vandal resistant.

The Duo8 SR1 Rated Fencing system panels are available in 2m, 2.4m or 3m in height and up to 3m wide (only 2m & 2.4m high panels).

Coupled with Zaun’s tamper-resistant stainless steel fasteners, the result is a rigid perimeter fence that offers a high degree of vandal resistance. In addition, with an extremely high level of visibility, this SR1 rated fencing system is ideal for additional CCTV cameras.

The posts may be supplied using either 60mm x 40mm or 80mm x 40mm Rectangular Hollow Section (RHS). Lengths of 2750mm or 3100mm may be supplied for fixing in the ground (bolt down posts are also available).  Each post has spacing at a maximum of 3025mm centres.

Installers may fix the panels to the posts with full-height 40mm x 5mm clamp bars and stainless steel fixings. The full height clamp bars create a flush safe finish with the mesh ends behind the clamp bar. In addition, an enhanced over clip is applied on the uppermost and lowermost fixings.

Suitable security toppings are also available to enhance your site’s perimeter security further.


All Zaun posts/panels/gates and painted auxiliary components (for example, clamp-bars, slide bolts etc.) benefit from a protective zinc layer and electrostatically applied polyester powder coating to BS1722 p16. Care is taken with pre-treatment to ensure sound adhesion between the zinc and paint layers. In a UK C1 environment, as defined in ISO 12944 p2, this should provide a useful life expectancy of the fence of at least 15-20 years. Regular maintenance can extend life expectancy in all environments by maintaining the fencing with frequent washing. Any coating damage will reduce useful life if the fencing is damaged and repaired to reduce useful life effects.

Enhanced painting systems such as marine coatings are also available for improved life expectancy in C2-C5M environments.

For a complete list of colours, click here

Posts & Fixings

The Duo 8 double wire mesh fencing system features a post, and clip configuration, providing a simple and easy installation method. Supplied with vandal-proof security fixings and installed using either power or hand tools.

SR1 Fencing on Sloping Ground

Panels may be stepped in increments of 30mm as required within the clamp bar system. However, it is recommended that the taller panels are either partially buried or other posts are used on steeper gradients.

Variations for SR1 Rated Fencing

Posts are available in different lengths to accommodate panel heights and ground conditions. Additional variations are also available:

SR1 Rated Gates

Pedestrian gates are single leaf 1.2m wide (or width to suit). They are framed in a 50mm x 50mm RHS with Zaun Duo8 mesh welded inside the frame, with a slide latch. Each gate features a rubber bump stop and 2 x suitable gate posts.

Vehicle access gates are double leaf (single leaf vehicle gates available) 3.0m wide (or width to suit). They are framed in 50mm x 50mm RHS, with Zaun Duo8 mesh welded inside the frame, with drop bolts and slide latch. Each vehicle Gate features a rubber bump stop and 2 x suitable gate posts.

Duo8 SR1 Rated Fencing Samples Available

Samples of Zaun Duo8 SR1 are available upon request. To request your free sample, please click here.



Features and Benefits
  • LPCB LPS1175 Security Rated at SR1 by BRE & featured in the Red Book
  • Secured by Design Approved
  • Conforms to BS1722: Part 14
  • Robust design with twin 8mm horizontal wires
  • High level of vandal resistance
  • Available either bolt down or in-ground
  • Various security topping options are available
  • High visibility open mesh pattern
  • Monitor site without restriction
Download To download our Duo8 SR1 datasheet, please click on the link below: To download our Q40 specification sheet, please click on the link below; To download our test certificate, please click on the link below To download our standard colour list, please click on the link below; To download our brochures, please click on the link below;
Height 2030, 2430, 3030mm
Panel Width 2510mm / Optional 3010mm (Not available for 3030mm high fencing)
Mesh Size 200mm x 50mm
Wire Diameter 6mm Verticals / 2 x 8mm Horizontals
Top Edge Projection 22mm Projection as Standard / Optional Flush
Post Size 60 x 60
Clamp Bar Size 40 x 5mm
Post Centres 2525mm / 3025mm
Fixing Centres 400mm
Fixings Anti Tamper Security Fixings

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Certifications and Approvals