What Is Corromesh 358? A Guide to Australia’s High-Security Mesh Fencing

Have you ever considered the true cost of an unsecured perimeter? Beyond the immediate financial loss from theft or vandalism, there’s operational disruption, reputational damage, and safety risks. For critical infrastructure and high-value assets, standard fencing simply doesn’t cut it.

Corromesh® 358 is a welded, high-security fencing steel mesh system specifically engineered to provide superior protection against intrusion, climbing, and cutting. Used extensively across correctional facilities, government sites, transport corridors, and industrial compounds in Australia, it represents the benchmark for robust perimeter security. 

This guide will explore 358 mesh fencing, explain its unique benefits, and help you determine if it’s the right choice for your next project.

What Is Corromesh 358?

Corromesh 358 is a high-security fencing mesh characterised by its tight aperture and robust welded construction. The “358” in its name refers to its precise dimensions: a 3-inch x ½-inch aperture (approximately 75mm x 12.5mm) with an 8-gauge (4mm) wire diameter.

Unlike woven chain link, 358 mesh is resistance-welded at every intersection, creating an exceptionally strong and rigid panel. It typically features a Zalcote® (zinc-aluminium alloy) coating, offering superior corrosion resistance compared to standard galvanising, and is manufactured to meet the rigorous standards of AS/NZS 4534:2006.

How Corromesh 358 Works: Anti-Climb and Anti-Cut Design

Corromesh 358‘s effectiveness stems from its intelligent design, which actively deters and delays intrusion attempts.

The Finger-Proof Aperture

At just 75mm x 12.5mm, the apertures are too narrow for fingers or toes to gain purchase, making it virtually impossible to climb without specialised tools. This “finger-proof” design is why it’s the gold standard for anti-climb security fencing.

Wire Strength and Cut Resistance

Each 4mm diameter wire is crafted from high-tensile steel (500–625 MPa). The resistance-welded intersections make it incredibly difficult to cut through with standard hand tools like bolt cutters, drastically increasing detection time.

Sightline Advantage

Its open mesh design ensures CCTV cameras and surveillance equipment have clear, unobstructed sightlines—providing a multi-layered defence that solid barriers or privacy screening cannot offer.

When Do You Need Corromesh 358?

You need 358 mesh fencing when standard chain link or palisade fencing isn’t rated for the risk level of your site, or when a higher degree of anti-climb security fencing and anti-cut resistance is paramount.

Consider Corromesh® 358 for:

• Correctional/Detention Facilities: Preventing escape and unauthorised access.
• Government and Critical Infrastructure: Defence sites, power substations, water treatment, and utilities requiring high-security fencing.
• Airports, Seaports & Transport Corridors: Securing perimeters against trespass and vandalism.
• Data Centres: Protecting sensitive equipment and physical infrastructure.
• Schools and Public Campuses: Enhancing safety around restricted boundary zones.
• Industrial Compounds: Safeguarding high-value assets and inventory.

Signs You Need an Upgrade:

• Recent breaches, vandalism, or theft.
• New insurer or tender requirements for higher security ratings.
• Compliance audits highlighting perimeter vulnerabilities.
• Your site now holds sensitive or critical assets.

Corromesh 358 Specifications at a Glance

Here are the key specifications that define Corromesh® 358:

Is Corromesh 358 Right for Your Site?

Deciding on the optimal perimeter solution involves balancing risk, compliance, and long-term value. While Corromesh 358 represents a higher initial investment than standard chain link, its superior durability, low maintenance, and anti-climb performance offer long-term peace of mind. It also integrates with gates, CCTV, and electric fence toppings.

If your project demands uncompromising security and clear surveillance sightlines, Corromesh® 358 is likely your ideal high-security fencing choice.

FAQs

• What does “358” mean in Corromesh 358?
  It denotes the mesh dimensions: 3-inch x ½-inch aperture with 8-gauge (4mm) wire, an industry-standard naming convention.

• Is Corromesh 358 the same as chain link fencing?
  No. Corromesh 358 is welded with a tight, finger-proof aperture for high security, unlike woven chain link which offers minimal resistance to climbing or cutting.

• What Australian standard does Corromesh 358 comply with?
  It meets AS/NZS 4534:2006, the standard for zinc-aluminium alloy coated wire used in high-security fencing applications.

• Where is Corromesh 358 typically installed?
  Commonly used at correctional facilities, government sites, airports, transport corridors, substations, data centres, and schools requiring enhanced security.

• Does Corromesh 358 block CCTV visibility?
  No. Its open mesh design ensures clear sightlines for surveillance cameras, unlike solid fencing options.

• How does Corromesh 358 compare in cost to palisade fencing?
  It generally costs more per metre than standard palisade due to its dense mesh and coating, but provides a significantly higher security rating often required for high-risk sites.

Ready to enhance your perimeter security with Australia’s leading high-security fencing solution? Contact Summit Fencing for a tailored quote and expert advice.