What Is 358 Security Fence?

358 security fence — also called 358 mesh fence or "prison mesh" — is a high-security welded wire mesh panel named after its mesh size: 3" × 0.5" × 8 gauge (76.2 mm × 12.7 mm × 4 mm wire diameter). The tight mesh pattern makes it nearly impossible to climb or cut with hand tools, which is why it has become the standard choice for prisons, airports, power substations, and border facilities worldwide.

Key Specifications

Why 358 Mesh Outperforms Ordinary Fencing

• Anti-climb:the 12.7 mm vertical aperture is too narrow for fingers or toes to grip.
• Anti-cut:4 mm steel wires resist bolt cutters and hand tools.
• Visibility:the welded mesh keeps a clear line of sight, ideal for CCTV-monitored sites.
• Longevity:hot-dip galvanizing plus powder coating delivers 10+ years of corrosion resistance, even in coastal or tropical climates such as the Caribbean.

Typical Applications

• Prisons and detention centers
• Airports and seaports
• Power substations and water treatment plants
• Oil & gas facilities and data centers
• Border crossings and military sites
• High-end industrial parks and logistics hubs

How to Choose a 358 Fence Supplier

1. Check the wire diameter and mesh tolerance— some suppliers thin the wire to cut costs. Ask for mill certificates.
2. Confirm the coating process— genuine hot-dip galvanizing (not electro-galvanizing) is essential for outdoor life.
3. Ask about panel flatness and weld strength— uneven panels slow down installation and look unprofessional.
4. Request a factory video or audit— a real manufacturer can show you the welding line, not just a trading office.
5. Compare landed cost, not just FOB price— packaging, container loading, and freight to your port matter.

Why Buy 358 Fence from Forge Fence

Forge Fence has manufactured steel fencing systems since 2005 from a 25,000 m² factory in Anping, Hebei, China. Our 358 security fence panels are welded on automated lines, hot-dip galvanized, and powder-coated for maximum service life. We ship factory-direct to contractors, importers, and government projects across the Caribbean, South America, Africa, and the Middle East.

Get a factory-direct quote: visit www.forge-fence.com or email info@forge-fence.com with your required height, length, and finish.