SR1 (A1) Palisade Fencing

LPS 1175 SR1 (A1) palisade fencing for strong, visible perimeter protection. Robust steel pales, three supporting rails and tamper-resistant fixings create a secure system for commercial, industrial and sensitive sites.

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SR1 (A1) 358 mesh fencing is designed for projects that require a defined level of resistance to forced entry together with clear visibility across the perimeter.

LPS 1175 SR1 (A1) Security-Rated Palisade Fencing

SR1 (A1) palisade fencing is designed for projects that require a defined level of resistance to forced entry and a prominent visual deterrent. The PallusGuard-3 system complies with LPS 1175 SR1 (A1) Issue 8 and BS 1722 Part 14.

Each standard 2750mm bay contains 17 vertical steel pales supported by three 45mm x 45mm x 5mm rolled-steel angle rails. The rails connect to 100mm x 55mm IPE posts through steel fishplates, while security nuts protect the pale-to-rail and rail-to-post connections.

Available with triple-pointed, single-pointed or rounded and side-notched pale tops, the system can be configured to suit the site's security requirements and operating environment.

Data Sheet

Where Can SR1 (A1) 358 Mesh Fencing Be Used?

Where Can SR1 (A1) Palisade Fencing Be Used?

This security-rated palisade fencing system is suitable for locations where a strong physical boundary and clear visual deterrent are required. Typical applications include:

Educational campuses
Utility and service-provider sites
Car parks and vehicle compounds
Sensitive data and communications facilities
Commercial premises
Industrial sites, warehouses and distribution centres
Infrastructure and restricted-access compounds

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Key Benefits of SR1 (A1) Palisade Fencing

Security-rated performance

The complete fencing system complies with LPS 1175 SR1 (A1) Issue 8, providing a recognised security classification for perimeter specifications and site-security strategies.
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Strong three-rail construction

Seventeen steel pales are supported on three heavy-duty RSA rails within each standard bay. The additional rail reinforces the system and helps maintain a rigid, consistent fence line.

Visible perimeter deterrent

The vertical steel pales and defined top profiles create a prominent boundary that communicates restricted access while maintaining visibility through the perimeter.

Tamper-resistant fixing system

High-grade galvanised bolts and security nuts connect the pales, rails, fishplates and posts. These specified fixings help protect critical system connections against unauthorised removal.

Durable galvanised and coated finish

Pales, posts, rails and fishplates are hot-dip galvanised and polyester powder coated as specified, providing a durable finish for external environments. RAL 6005 Moss Green and RAL 9005 Black are the standard colours.

Choice of pale tops and heights

The system is available from 1800mm to 3000mm high, with triple-pointed, single-pointed or rounded and side-notched pale tops to suit different project requirements.

SR1 (A1) 868 Mesh Fencing Specification

Product model: PallusGuard-3

Security standard: Complies with LPS 1175 SR1 (A1) Issue 8

Fencing standard: BS 1722 Part 14

Standard bay: 17 pales per 2750mm bay

Nominal heights: 1800mm to 3000mm

Pale thickness: 2.0mm or 2.5mm nominal thickness

Pale steel grade: D11 self-colour steel

Pale-top options: Triple pointed, single pointed, or rounded top and side notched

Bottom clearance: Recommended average gap of no more than 25mm

Rails: Three 45mm x 45mm x 5mm RSA rails, 2710mm overall length per standard bay

Rail steel grade: S275JR

Posts: 100mm x 55mm IPE posts; length varies by height and installation arrangement

Post steel grade: S275JR

Fishplates: 30mm x 5mm rolled-steel flat

Fishplate steel grade: S235JR

Pale-to-rail fixings: M8 x 25mm grade 8.8 galvanised T-head bolts with locking patch and galvanised security nuts

Rail/fishplate fixings: M12 x 30mm grade 8.8 galvanised cup-square bolts with galvanised security nuts

Protective finish: Hot-dip galvanised to BS EN 1461:2005 and polyester powder coated to BS EN 13438:2005

Powder-coating thickness: Minimum 100 microns

Standard colours: RAL 6005 Moss Green and RAL 9005 Black