358 Anti-climb Mesh

Rigid Mesh Fencing

358 Anti-Climb Rigid Mesh is a high-security fencing system designed for sites requiring enhanced perimeter protection. The name "358" refers to the mesh configuration of 3-inch × 0.5-inch apertures and 8-gauge (4mm) steel wire, creating a robust barrier that is virtually impossible to climb or cut. Proven in prisons, schools, data centres, airports, and critical infrastructure, 358 mesh fencing delivers superior security while maintaining excellent visibility for surveillance, monitoring, and site safety.

Talk to our team today to find out if 358 Anti-Climb Rigid Mesh is the right security fencing solution for your property.

Key Features and Benefits

Anti-Climb & Anti-Cut Protection: The narrow, finger-resistant mesh apertures and 4mm wire construction create a highly secure barrier that is extremely difficult to climb, penetrate, or cut with conventional hand tools. Designed for high-security environments, 358 mesh fencing provides effective protection against vandalism, intrusion, and unauthorised access.

Exceptional Stability: The rigid panel design and low wind resistance provide exceptional stability in demanding environments. This makes 358 Anti-Climb Rigid Mesh ideal for high-security fencing applications, including electronic detection systems, perimeter intrusion detection, rooftop protection, and elevated walkways where a robust, self-supporting security barrier is required.

Visibility without Compromise: Despite its narrow mesh apertures, 358 Anti-Climb Rigid Mesh provides excellent visibility across the fence line, allowing unobstructed views for CCTV surveillance, perimeter monitoring, and security patrols. This combination of high security and clear sight lines makes it an ideal fencing solution for prisons, schools, data centres, airports, and critical infrastructure.

Long-term Durability: Designed for demanding commercial, industrial, and high-security environments, 358 Anti-Climb Rigid Mesh Fencing delivers long-lasting, low-maintenance perimeter protection. Its robust steel construction is engineered to withstand harsh outdoor conditions, helping to reduce maintenance costs and maximise service life. For added peace of mind, Hampden backs the system with a 5-Year Warranty.

Unique Double Vertical Design: The innovative Double Vertical wire configuration provides enhanced strength and rigidity compared to conventional welded mesh fencing systems. This robust design improves resistance to impact and intrusion while maintaining excellent visibility through the fence line, delivering a strong and secure perimeter solution without compromising sight lines.

Galvanised After Fabrication: 358 Anti-Climb Rigid Mesh is hot-dip galvanised after fabrication, ensuring complete coverage of all welded joints and exposed steel surfaces. This superior finishing process provides enhanced corrosion protection and helps maintain the fence's appearance and performance over time.

Outstanding Versatility: 358 Anti-Climb Rigid Mesh is a versatile security fencing solution suitable for applications ranging from prisons, military facilities, power infrastructure, and data centres to commercial developments and architectural projects. Combining strength, security, and clear visibility, the system can be tailored to specific project requirements, with custom panel sizes and black steel finish options available.

Specifications

Material

4mm wire spot welded at every intersection.
Horizontal aperture: 72mm, Vertical aperture: 8.5mm

Dimensions

Max Sheet Width: 2210mm, Oriented with Attack Face Narrow 72mm aperture on horizontal plane
Height: 2.4 or 3.6m high in stock (other heights by indent)
Dimension tolerance: +/- 2.5mm
Squareness: +/- 2% of nominal panel size
Flatness: +/- 50mm clear of surface laid flat
Weight: 11.3kg/m2

Finish

Hot dip galvanised to AS / NZS 4680
Black non galvanised on indent
Powder coated to any colour (not in stock)

Security Fixings

Tamperproof Lockbolt or Structural Rivets
Alternative M8 Quad Drive Security Screws

Warranty

5 years manufacturers warranty (some conditions apply)

Related High Security Fencing Products

High Security Products

Ideal Applications

High Security Areas: Consulates, sensitive sites, secure care facilities, detention, military, data centres, courts & police.
Enclosures: Storage, bike cages, HVAC (internal & external) enclosures.
Correctional Facilities: Prisons, Youth justice centres.
Architectural: Stairwell enclosures, pedestrian bridge screens, facades, protective screens
Infrastructure: Motorways, rail, bridges.
Utilities: Power sub-stations, gas lines, water treatment facilities, telecommunications
Educational Facilities: Schools, university campuses.
Restricted Areas: Airports, shipping ports, goods delivery areas.
Recreational: Sports grounds, community centres.
Animal Enclosures: Zoos, dog pounds.
Commercial properties: Where security is important.
Retail: Shopping centres, car park buildings.
Other: Window security grills, wall & roof security mesh.

358 Mesh Resources & Insights

Article

For an insight into how Hampden successfully retrofitted a PS1-compliant 358 Anti-Climb Pool Fence at Kaikohe Intermediate School, follow the link below.

ARTICLE

FAQ: 358 Anti-Climb Mesh Fencing

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Yes, 358 Anti-Climb Mesh can be customised to meet the specific security, structural and aesthetic requirements of a project. Panel heights, widths, post configurations, fixing methods and finish options can be tailored to suit a wide range of applications, from schools and commercial developments to critical infrastructure and high-security sites. Its proven anti-climb performance has also made it a commonly specified fencing solution for Department of Corrections facilities and other restricted-access environments.
Depending on project requirements, Hampden can provide a variety of installation configurations, including Typical Assembly and Picture Frame systems. Our team works with clients to develop fencing solutions that satisfy site-specific design considerations, security objectives and compliance requirements.
Hampden’s standard 358 Anti-climb Rigid Mesh assembly consists of mesh panels installed between steel posts, with galvanised steel angles fixed to the posts to support and secure the mesh. The mesh is fixed to these post angles using tamper-resistant fasteners, while rails are also installed along the top and bottom edges of the mesh panels to provide additional rigidity and structural strength.
This assembly method delivers a robust and cost-effective security fencing solution that maintains the anti-climb properties and visibility benefits of 358 mesh while enhancing overall stability and performance. It is suitable for a wide range of applications, including schools, commercial developments, critical infrastructure, and high-security facilities.
Yes, 358 Anti-Climb Rigid Mesh can be adapted to accommodate a wide range of challenging site conditions, including sloping terrain, retaining walls, existing structures, confined spaces, rooftop installations, and complex infrastructure environments.
Where required, Hampden can also provide site-specific engineering design, including PS1 compliant solutions, to ensure the fencing system meets structural, security, and compliance requirements while maintaining the performance and appearance of the finished installation.
Before installing 358 mesh, it is important to consider the project’s security requirements, site conditions, fence height, wind loading, access requirements and, any compliance or engineering obligations. Factors such as sloping ground, retaining walls, existing structures, underground services, and integration with gates, CCTV, or access control systems can also influence the fence design and installation method.
For larger, high-security, or consented projects, engineering requirements such as post sizing, footing design, and PS1 documentation may also need to be considered. Assessing these factors early helps ensure the fencing solution delivers the required level of security, performance, and long-term reliability.
Yes, Hampden currently offers standard PS1-compliant 358 Anti-Climb Rigid Mesh fencing designs for both 2.4m high and 3.6m high fencing systems. These designs are available in inground, side-mounted and top-mounted configurations, providing pre-engineered solutions for a wide range of commercial, education, infrastructure and security applications.
For projects with specific engineering, site or consent requirements, Hampden can also provide site-specific PS1-compliant fencing solutions. Working alongside qualified engineers, we can assist with the design and certification of fencing systems to meet project requirements, including wind loading, fence height, post sizing, footing design and installation methodology.
PS1 documentation may be provided for projects such as school pool fencing, critical infrastructure, commercial developments, high-security installations and other applications where engineering certification or building consent requirements apply. Hampden can assess your project requirements and advise on the most appropriate fencing design, engineering documentation and compliance pathway.