EnviroProtect® Anti-Climb SR1 (A1) LPS 1175 High Security Railing Gates

EnviroProtect® Anti-Climb SR1 (A1) LPS 1175 Security Gate Systems

The EnviroProtect® Anti-Climb range of security gates represents the definitive solution for securing access points in high-risk and critical environments. This comprehensive collection includes a full suite of single and double leaf gate kits, engineered to provide an impenetrable yet highly visible barrier.

The range is designed to integrate perfectly with the matching EnviroProtect® Anti-Climb railing system, creating a seamless and uniformly secure perimeter. Every gate is built upon a dual-layered defence philosophy: the proven tool-resistance of the LPS 1175 SR1 (A1) certification combined with the formidable anti-climb and anti-cut properties of a fully welded 358 “prison mesh” infill.

This makes the EnviroProtect® Anti-Climb gate system the ultimate choice for sites where a breach is not an option.

The Ultimate Dual-Layered Defence

The security posture of every EnviroProtect® Anti-Climb gate is founded on two uncompromising principles that work in tandem to defeat multiple threat vectors. The first is the formal LPS 1175 SR1(A1) certification, awarded by the esteemed Loss Prevention Certification Board (LPCB). This is not a manufacturer’s claim but an independent, verified benchmark of performance, recognised by police, government agencies, and the insurance industry.

The SR1 (A1) rating guarantees that the gate’s frame and structure can withstand a sustained, 60-second attack from a range of common hand tools (Tool Category A), including screwdrivers, pliers, and knives. This critical one-minute delay is specifically designed to frustrate and deter opportunistic intruders, disrupting their attack plan and providing a crucial window for on-site security to detect and respond. The second, and equally critical, layer of defence is the 358 “prison mesh”.

So-named for its imperial measurements of 3” x 0.5” x 8 gauge, the mesh features incredibly small apertures of approximately 76.2mm x 12.7mm. These apertures are too narrow to allow any finger or toe holds, making the gate virtually impossible to scale.

The thick 4mm wire gauge is also exceptionally resistant to being cut by standard tools like bolt croppers. Unlike solid barriers, the mesh provides excellent through-visibility, which is essential for effective site surveillance via CCTV and guard patrols. This intelligent combination provides a complete defence against both brute-force tool attacks and agile, physical intrusion attempts.

Engineered for Strength & Longevity

Every EnviroProtect® Anti-Climb gate is engineered to withstand not only determined attacks but also the rigours of frequent use and harsh environmental conditions. The gate leaves are constructed from a heavy-duty 60x60mm box section frame, providing exceptional rigidity and resistance to physical force.

The 358 mesh is then securely welded into this robust frame, creating a single, monolithic barrier with no potential weak points. To support these substantial gate leaves, the kits utilise heavy-duty posts, with wider gates featuring uprated 100x100x3mm hinge posts.

This heavy-duty engineering is crucial for managing the significant weight and leverage of wider and taller gates, guaranteeing smooth, reliable operation and preventing gate sag over its entire service life. To ensure maximum durability, every component in the system is pre-galvanised, offering a powerful and lasting defence against rust and corrosion. This commitment to superior materials and engineering ensures a low-maintenance, long-term security asset.

Our EnviroProtect gates are fully compliant with the BS EN 12604 standard, having been engineered with safety and reliability as top priorities. Each gate is fitted with a robust three-hinge system, which ensures that even if one hinge were to fail, the gate leaf would remain securely in place, preventing collapse and reducing the risk of injury or damage. This crucial third hinge provides the built-in redundancy required to meet stringent safety standards, giving you complete confidence that your gate will continue to perform safely under demanding conditions.

A Comprehensive Range for Every Access Requirement

The EnviroProtect® Anti-Climb gate range is unparalleled in its scope, offering a certified solution for every conceivable access point, from a single pedestrian footpath to a primary logistics gateway for articulated lorries.

The range is available in four distinct security heights: 1.8m, 2.0m, 2.4m, and a maximum-security 3.0m. The 1.8m and 2.0m options are ideal for securing commercial and industrial sites, while the 2.4m and 3.0m heights provide the ultimate anti-climb deterrent for Critical National Infrastructure, MOD sites, and other high-risk facilities. This versatility extends to the gate configurations and widths. Single leaf gates are available in widths from 1.0m to 3.0m, perfect for controlling pedestrian flow and access for smaller maintenance vehicles.

For wider entrances, the Double Leaf Gates provide an expansive clear opening, with sizes ranging from 2.0m up to a massive 6.0m. The double leaf design offers superb operational flexibility, allowing for the opening of a single leaf for personnel or both for unrestricted vehicle movement, and is often more practical in confined spaces due to the reduced swing arc of each leaf.

Versatile and Secure Installation

Recognising that ground conditions vary, every gate kit in the EnviroProtect® Anti-Climb range is available with both bolt-down and dig-in posts. This ensures that a secure, stable, and certified installation can be achieved on any surface, from existing concrete pads to soft ground requiring new, deep foundations. The integrity of the installation is just as critical as the gate itself, and these options provide the flexibility to achieve the most secure footing possible.

Applications & Integration

The robust, certified, and anti-climb nature of this gate system makes it the definitive choice for the UK’s most sensitive sites. It is specifically designed for securing perimeters at:

• Data centres
• Utility substations
• Prisons and high-security facilities
• Airports and ports

Get More from First Fence

If you're looking for a full boundary solution, explore our EnviroProtect® Anti-Climb range. The same high-security standards and dual system are available as a railing kit, and with matching fencing posts.  Discover the full range and protect your properties today.

Customer Support

If you need advice or support with the EnviroProtect® Anti-Climb range, please contact our team of experts. The friendly First Fence team are available by phone on 01283 512 111 or by email at sales@firstfence.co.uk. You can also connect via our live chat service for immediate answers to quick questions.