Description 358 fence panels deliver reliable perimeter protection through narrow welded mesh, heavy-duty steel construction, and practical anti-climb geometry. BMP manufactures these security barriers for prisons, airports, logistics facilities, industrial properties, and critical infrastructure. Small rectangular openings restrict ordinary climbing attempts while maintaining clear visibility across the protected boundary. Strong welded joints support structural rigidity, and suitable coatings help protect the steel against corrosion.
Modern security planning requires careful attention to more than the fence itself. Gates, access procedures, surveillance equipment, and foundations all influence overall protection. A well-designed perimeter balances physical strength with daily operational requirements. Property owners also need dependable materials that remain practical to inspect and maintain.
BMP supplies 358 fence panels in several heights with matching posts, clamp bars, and security fasteners. Customers can choose galvanized surfaces, selected powder coatings, and project-specific structural arrangements. This guide explores specifications, security performance, manufacturing considerations, installation planning, and long-term ownership costs.
 |
 |
| Galvanized steel mesh creates a rigid security barrier while supporting clear perimeter observation. |
Narrow rectangular openings help discourage climbing and restrict access for many ordinary cutting tools. |
What Are 358 Fence Panels?
358 fence panels use tightly spaced horizontal and vertical steel wires joined at their intersections. Their traditional name comes from three imperial measurements. These include three inches, half an inch, and eight-gauge wire.
The metric equivalent commonly uses 76.2 × 12.7 mm mesh centres and 4 mm steel wire. This geometry forms narrow horizontal openings that offer limited space for climbing. Security professionals often call this product prison mesh or anti-climb welded fencing.
Unlike flexible chain-link fabric, rigid welded panels maintain a defined rectangular structure. Supporting posts and clamp bars hold the panels along the perimeter. Secure fasteners help discourage unauthorized removal of individual sections.
358 Fence Panels and Actual Mesh Openings
Manufacturers generally describe mesh dimensions using wire centre-to-centre measurements. Actual clear openings become smaller after accounting for the wire diameter. A 4 mm wire produces approximate openings of 72.2 × 8.7 mm.
This distinction matters during technical approval and inspection. Buyers should specify whether measurements refer to wire centres or clear openings. Accurate descriptions help prevent disputes about manufacturing tolerances.
Why Narrow Mesh Improves Climbing Resistance
Ordinary climbing often depends on accessible handholds and footholds. Close horizontal wire spacing reduces these opportunities significantly. The resulting geometry makes unsupported climbing more difficult than with many wide-aperture fences.
Nevertheless, no physical fence guarantees complete protection against determined intrusion. Security planning should also address gates, surrounding structures, and potential climbing assistance.
358 Fence Panels Technical Specifications
358 fence panels require matching structural components for reliable installation. BMP offers nine reference panel configurations with corresponding posts and clamp bars. These options support different perimeter heights and site requirements.
| Panel Size (H × W) |
Fence Post (H × Section × Thickness) |
Clamp Bar (H × W × Thickness) |
Intermediate / Corner Fixings |
| 2007 × 2515 mm |
2700 × 60 × 60 × 2.5 mm |
2007 × 60 × 5 mm |
7 / 14 PCS |
| 2400 × 2515 mm |
3100 × 60 × 60 × 2.5 mm |
2400 × 60 × 5 mm |
9 / 18 PCS |
| 2997 × 2515 mm |
3800 × 80 × 80 × 2.5 mm |
2997 × 80 × 6 mm |
11 / 22 PCS |
| 3302 × 2515 mm |
4200 × 80 × 80 × 2.5 mm |
3302 × 80 × 6 mm |
12 / 24 PCS |
| 3607 × 2515 mm (Option 1) |
4500 × 100 × 60 × 3.0 mm |
3607 × 100 × 7 mm |
13 / 26 PCS |
| 3607 × 2515 mm (Option 2) |
4500 × 100 × 100 × 3.0 mm |
3607 × 100 × 7 mm |
13 / 26 PCS |
| 4204 × 2515 mm |
5200 × 100 × 100 × 4.0 mm |
4204 × 100 × 8 mm |
15 / 30 PCS |
| 4496 × 2515 mm |
5500 × 100 × 100 × 5.0 mm |
4496 × 100 × 8 mm |
16 / 32 PCS |
| 5207 × 2515 mm |
6200 × 120 × 120 × 5.0 mm |
5207 × 100 × 8 mm |
18 / 36 PCS |
These specifications represent product reference configurations rather than universal structural requirements. Engineers must verify post sizes, foundations, and connections against actual site conditions. Wind exposure, soil properties, and security loading can influence the final design.
358 Fence Panels Material Details
| Product Type |
Rigid Anti-Climb Welded Steel Mesh |
| Steel Material |
Low-Carbon Steel Wire |
| Nominal Wire Diameter |
4.0 mm |
| Nominal Mesh Centres |
76.2 × 12.7 mm |
| Alternative Mesh Centres |
75 × 13 mm, Subject to Confirmation |
| Reference Panel Width |
2515 mm |
| Reference Height Range |
2007–5207 mm |
| Post Profiles |
Square / Rectangular Steel Hollow Sections |
| Connecting Components |
Steel Clamp Bars and Security Fasteners |
| Protective Finishes |
Galvanized / Compatible Powder Coating |
| Popular Colors |
RAL 6005 / RAL 9005 / RAL 7016 |
| Export Packing |
Steel Pallets and Protective Materials |
Choosing 358 Fence Panels by Security Level
358 fence panels come in different heights because perimeter security needs vary considerably. A commercial warehouse rarely shares identical requirements with a correctional institution. Project designers should therefore consider physical risks, available space, and operational activities.
-
-
oplus_10485760
-
-
oplus_10485760
-
-
oplus_10485760
-
-
oplus_10485760
Approximately Two-Metre Security Fencing
Lower-height configurations may suit selected commercial properties and controlled service areas. These installations can discourage casual access while preserving visibility. Their suitability depends on the actual security assessment.
2.4-Metre Perimeter Protection
Medium-height security boundaries commonly serve industrial compounds and selected infrastructure facilities. Additional height can increase climbing difficulty. However, effective protection still requires secure gates and reliable connections.
Three-Metre Security Barriers
Taller panels may suit facilities with stricter access-control requirements. The increased height creates greater demands on supporting posts. Engineers should verify wind loading and foundation performance carefully.
Extended High-Security Configurations
Specialized projects may require panels exceeding four metres. Such installations introduce additional structural, handling, and maintenance considerations. Qualified engineers must approve the complete design.
358 Fence Panels Height Selection Checklist
- Identify the facility's security requirements.
- Review local planning and safety restrictions.
- Assess climbing opportunities around nearby structures.
- Determine wind exposure and ground conditions.
- Confirm compatible gate and post dimensions.
- Evaluate surveillance and maintenance access.
- Obtain structural approval before production.
How 358 Fence Panels Resist Physical Intrusion
358 fence panels combine several protective characteristics within a single welded structure. Their effectiveness depends on the interaction between material geometry, steel strength, and supporting components.
Anti-Climb Mesh Geometry
The narrow openings provide limited space for ordinary fingers and footwear. This design discourages attempts to climb directly through the mesh face. Security teams should still consider alternative climbing routes.
Cutting Resistance
Dense wire spacing restricts access for certain hand-operated cutting tools. The steel wires also increase the effort required for penetration. Powerful specialized equipment can still damage or cut the material.
Welded Panel Rigidity
Consistent welded intersections help maintain the rectangular mesh structure. This construction offers greater rigidity than flexible wire fabric. Poor welding quality can reduce the intended performance.
Security Clamp Connections
Strong clamp bars help retain panels against structural posts. Anti-tamper hardware discourages casual dismantling. Correct installation remains essential for reliable connection performance.
Surveillance Visibility
Open mesh permits observation through the boundary. Security guards can identify activity without relying on a solid wall. Camera positioning should account for mesh focus and viewing angles.
358 Fence Panels in Modern Perimeter Risk Assessment
358 fence panels should support a defined security strategy rather than serve as an isolated purchase. Different facilities face different threats and operational constraints. A useful assessment considers the likelihood and consequences of unauthorized access.
Assess Valuable Assets
Identify machinery, stored goods, infrastructure, and sensitive areas that require protection. Asset value influences the necessary security response.
Review Existing Access Points
Gates and service entrances often introduce vulnerabilities. Examine their placement, locking arrangements, and operating procedures.
Identify Visibility Problems
Buildings, vegetation, parked vehicles, and uneven terrain can obstruct observation. Fence layout should support effective surveillance wherever practical.
Consider Emergency Operations
Emergency responders may require rapid access to restricted properties. Security arrangements must accommodate applicable safety and evacuation requirements.
Evaluate Maintenance Resources
Remote installations may receive less frequent inspection. Choose materials and components that support practical maintenance without compromising required performance.
358 Fence Panels Applications Across South Africa
358 fence panels support projects throughout South Africa, although local conditions vary significantly. Coastal salt exposure, industrial pollution, urban security concerns, and remote logistics influence material selection.
Durban: Ports, Humidity, and Storage Facilities
Durban combines maritime operations with a warm and humid coastal climate. Airborne salts can accelerate corrosion on vulnerable steel surfaces. Industrial storage yards also require clear access control around cargo and equipment.
Suitable protective finishes help address environmental exposure. Dense security mesh supports warehouse boundaries while maintaining observation through the fence. Project managers should assess proximity to the coast before selecting coatings.
Johannesburg: Industrial Property Protection
Johannesburg contains extensive manufacturing, logistics, and commercial activity. Theft and unauthorized access can create meaningful risks for selected properties. Security conditions differ between sites and neighborhoods.
Strong fencing can help establish controlled industrial boundaries. Open mesh supports surveillance without creating a fully enclosed appearance. Proper lighting and gate management strengthen the broader security arrangement.
Cape Town: Coastal Weather and Wind
Cape Town presents complex conditions for outdoor steel structures. Coastal locations may experience salt exposure and demanding wind conditions. These factors require separate corrosion and structural assessments.
Appropriate coatings protect steel against environmental deterioration. Engineered posts and foundations provide resistance against imposed loads. Contractors should consider both requirements before approving materials.
Pretoria: Commercial and Institutional Facilities
Pretoria includes office properties, educational facilities, industrial compounds, and government infrastructure. Different sites require different levels of controlled access. Security fencing can define restricted areas while maintaining visual openness.
Suitable powder-coated finishes may complement nearby buildings. Facility managers should also review gate placement and emergency access.
Limpopo: Mines and Remote Operations
Mining properties often require extensive boundaries around technical equipment and operating compounds. Remote access can complicate repairs and replacement deliveries. Reliable hardware and documented maintenance procedures offer practical advantages.
Ground conditions may vary considerably across individual sites. Engineers should verify foundation arrangements before installing tall security barriers.
358 Fence Panels for Airports, Prisons, and Utilities
358 fence panels serve facilities requiring controlled access and reliable perimeter visibility. However, individual security applications demand different supporting systems.
Correctional Facilities
Prisons require clearly defined restricted boundaries and continuous monitoring. Narrow welded mesh can discourage climbing and unauthorized movement. Additional security zones may provide further protection.
Airport Perimeters
Airport operators manage sensitive runways, equipment, and restricted operational areas. Security fencing supports access control without completely obstructing observation. Designs must follow the relevant aviation requirements.
Electrical Substations
Substations contain equipment that presents serious hazards to unauthorized visitors. Strong boundaries help control access to electrical infrastructure. Designers must also address earthing and required safety clearances.
Seaports and Logistics Terminals
Ports manage cargo, machinery, vehicles, and controlled operating areas. Perimeter fencing helps organize security boundaries. Coastal corrosion protection remains important for exposed steel components.
Railway Maintenance Facilities
Railway operators may need secure boundaries around depots and technical installations. Rigid mesh supports controlled separation from public areas. Fence placement should follow railway safety requirements.
Healthcare and Educational Facilities
Selected institutions need boundaries that balance security with public safety. Schools and healthcare facilities also require suitable emergency exits. Designers should avoid hazardous accessories in inappropriate locations.
 |
| Rigid welded security fencing supports controlled perimeters around industrial and restricted facilities. |
358 Fence Panels Corrosion Protection and Surface Finishes
358 fence panels need appropriate corrosion protection for their intended environments. BMP offers galvanized surfaces and compatible decorative coating options. The correct finish depends on exposure conditions and project requirements.
Hot-Dip Galvanizing
Hot-dip galvanizing introduces a protective zinc layer onto suitable steel components. Zinc provides barrier protection and sacrificial corrosion resistance. Applicable coating requirements should follow the selected material standard.
Galvanized and Powder-Coated Finishes
A compatible powder coating adds decorative color and another protective barrier. Proper surface preparation remains essential for dependable adhesion. Coating specifications should identify thickness and inspection requirements.
Galfan Zinc-Aluminium Coating
Galfan uses a zinc-aluminium alloy with nominal proportions of 95% zinc and 5% aluminium. The alloy offers useful corrosion-protection characteristics. Performance still depends on coating mass, processing, and environmental exposure.
RAL Colors
Popular colors include RAL 6005 Moss Green and RAL 9005 Jet Black. RAL 7016 Anthracite Grey provides another common architectural option. Custom colors require confirmation before manufacturing.
358 Fence Panels Coating Selection for Coastal Sites
Coastal environments can expose steel surfaces to airborne salt and repeated moisture cycles. A suitable coating system helps reduce corrosion risks. Regular inspection remains important near harbors and industrial waterfronts.
358 Fence Panels Posts, Clamp Bars, and Fasteners
358 fence panels rely on their supporting components for dependable installation. Structural posts transfer loads into foundations, while clamp bars secure the mesh edges.
Square Steel Posts
Square hollow sections provide convenient flat mounting surfaces. Common reference dimensions include 60 × 60 mm and 80 × 80 mm. Required wall thickness depends on the structural design.
Rectangular Steel Posts
Rectangular posts offer different bending properties along their principal axes. Taller configurations may require larger sections. Engineers should verify post orientation and loading.
Continuous Clamp Bars
Steel clamp bars distribute attachment forces along the panel edge. Proper alignment helps retain the mesh against supporting posts. Hardware dimensions must match the approved connection details.
Anti-Tamper Fasteners
Security bolts can discourage removal using ordinary tools. Some designs use M8 fasteners with specialized heads. Installers must follow the correct tightening procedures.
Matching Access Gates
Security gates should complement adjacent fence sections. Vehicle entrances may require larger posts and reinforced frames. Compatible ClearVu fence sliding gates demonstrate related access-control arrangements.
358 Fence Panels Installation Sequence
358 fence panels require careful construction planning to achieve consistent alignment and reliable structural support. Site preparation should begin before material delivery.
Step 1: Survey the Boundary
Measure the complete fence alignment and identify gates, corners, drainage routes, and underground utilities. Confirm property boundaries before excavation.
Step 2: Establish Post Centres
Use approved installation drawings to mark each post position. Allow for panel connections and required overlaps. Nominal panel width does not always equal installed spacing.
Step 3: Prepare Foundations
Excavate holes according to approved engineering requirements. Soil bearing capacity and wind loading influence foundation dimensions.
Step 4: Install Structural Posts
Position posts vertically and confirm their alignment. Temporary supports may help during concrete placement. Allow foundations to gain adequate strength.
Step 5: Mount Mesh Panels
Use suitable lifting equipment for heavy or oversized panels. Align the mesh before securing its edges. Avoid damaging protective coatings.
Step 6: Tighten Connections
Install clamp bars and fasteners according to technical drawings. Check connection compatibility and security. Replace damaged hardware where necessary.
Step 7: Complete Final Inspection
Examine panel alignment, coating condition, ground clearance, and gate operation. Resolve defects before formal project acceptance.
Contractors can compare related methods in the ClearVu fence installation guide. Specific 358 designs still require their own approved construction details.
Common Mistakes When Ordering 358 Fence Panels
358 fence panels may appear similar across suppliers, but small specification differences can affect performance and installation. Buyers should review the complete technical schedule.
Confusing Wire Centres with Clear Openings
Nominal mesh dimensions usually describe wire centre spacing. Actual clear openings are smaller. Buyers must confirm the measurement convention.
Comparing Different Wire Diameters
A thinner wire reduces steel consumption and may lower initial costs. However, specifications should match the intended application.
Ignoring Structural Post Requirements
Taller panels increase demands on supporting structures. Insufficient post sections can create unacceptable movement or instability.
Excluding Connection Hardware
Some quotations cover panels without compatible clamp bars or fasteners. Buyers should request a complete bill of materials.
Choosing Coatings Without Environmental Assessment
Coastal and industrial environments can require different protective systems. Generic coating descriptions may omit important details.
Assuming Fixed Post Spacing
Different attachment systems require different installation geometry. Always follow the approved drawings.
358 Fence Panels Project Quantity Planning
358 fence panels require accurate quantity calculations before procurement. A complete material schedule should include panels, posts, fixings, gates, and special sections.
Measure the Effective Fence Length
Begin with the total perimeter length. Deduct planned gate openings and identify separate straight runs.
Determine the Correct Bay Spacing
Use the approved panel installation module. Allow for corner arrangements and post connections.
Calculate the Number of Bays
Divide each fence run by its approved module length. Review any remaining distance for special panels.
Calculate the Number of Posts
A straight run with ten bays generally needs eleven post positions. Shared corners and gates affect the final quantity.
Prepare the Fastener Schedule
Use the correct fixing quantities for each panel height and connection. Include suitable replacement hardware where necessary.
Example: Planning a 250-Metre Fence
Consider a simplified straight perimeter measuring 250 metres. Assume an approved installed bay spacing of 2.5 metres for illustration.
| Item |
Illustrative Quantity |
| Fence Length |
250 metres |
| Assumed Bay Spacing |
2.5 metres |
| Number of Bays |
100 |
| Panel Quantity |
100 |
| Post Positions |
101 |
| Clamp Bars and Fasteners |
According to Approved Drawings |
| Gate Components |
Excluded from This Example |
This example does not establish the actual spacing for BMP's 2515 mm panels. Final quantities must follow the selected connection design.
358 Fence Panels Quality Inspection Before Export
358 fence panels should undergo appropriate manufacturing checks before international shipment. Buyers can establish inspection criteria through approved technical documents.
| Inspection Category |
Recommended Verification |
| Mesh Dimensions |
Check horizontal and vertical spacing. |
| Wire Diameter |
Measure nominal steel wire thickness. |
| Weld Consistency |
Inspect intersections and required test results. |
| Panel Geometry |
Verify width, height, squareness, and straightness. |
| Post Dimensions |
Check section size, wall thickness, and length. |
| Fasteners |
Confirm size, type, quantity, and compatibility. |
| Coating Quality |
Inspect appearance and agreed coating properties. |
| Packing |
Verify protection and pallet security. |
| Documents |
Review approved drawings and inspection records. |
Welding Inspection
Consistent joints help preserve panel rigidity. Inspectors should identify obvious defects and verify any required mechanical testing.
Dimensional Verification
Accurate dimensions simplify assembly during installation. Buyers should agree on tolerances before manufacturing.
Coating Verification
Coating assessments should follow the selected finishing process. Different standards apply to different metallic and organic coating systems.
Final Packing Inspection
Check bundle quantities, labels, and protective materials. Proper packing helps reduce handling damage during international transportation.
358 Fence Panels Packaging and International Shipping
358 fence panels require suitable protective packing due to their weight and rigid dimensions. BMP can arrange steel pallet packaging and appropriate protective separators.
Panel Stacking
Stack panels securely and distribute weight appropriately. Protective separators help reduce contact damage between finished surfaces.
Steel Pallets
Metal pallets support organized handling during factory loading. Pallet dimensions should match the cargo geometry.
Container Loading
Shipping teams must consider container payload limits and cargo restraint requirements. Long panels may require special handling arrangements.
Accessory Identification
Clearly identify clamp bars, bolts, caps, and other components. Correct labels simplify destination inventory checks.
Shipping Documentation
Accurate packing lists and commercial invoices support international clearance. Customers should confirm document requirements before shipment.
358 Fence Panels Maintenance and Ownership Costs
358 fence panels require periodic inspection despite their robust welded construction. Maintenance costs depend on coating choice, environmental exposure, and operational activity.
Check Welded Intersections
Inspect exposed areas for unusual corrosion or physical damage. Address developing problems before deterioration spreads.
Inspect Fasteners and Clamp Bars
Loose or missing hardware can weaken panel connections. Replace defective components with suitable equivalents.
Repair Damaged Protective Finishes
Scratches and impacts may expose underlying steel. Use repair methods compatible with the original coating.
Maintain Perimeter Visibility
Vegetation and stored materials can obstruct camera coverage. Keep critical surveillance areas clear.
Evaluate Gate Performance
Regular gate inspections support dependable access control. Check hinges, locking equipment, and operating clearances.
Understand Total Ownership Cost
Initial purchasing price represents only one project expense. Installation, maintenance, coating repairs, and component replacement influence long-term expenditure.
Buyers can compare related material pricing through Clear View fence prices. Individual 358 configurations still require specification-based quotations.
358 Fence Panels Compared with Other Perimeter Systems
358 fence panels offer a different balance of security, visibility, and structural rigidity from conventional fencing. Product selection should reflect the facility's risk assessment.
| Feature |
358 Welded Mesh |
Conventional Chain-Link |
Standard Welded Mesh |
| Opening Geometry |
Narrow rectangular |
Diamond pattern |
Various rectangular patterns |
| Construction |
Rigid welded steel |
Interwoven wire |
Rigid welded steel |
| Climbing Resistance |
High relative resistance |
Depends on mesh size |
Depends on opening size |
| Surveillance Visibility |
Good |
Good |
Good |
| Typical Use |
High-security boundaries |
General fencing |
General and industrial fencing |
| Connections |
Security bars and fasteners |
Tensioning system |
Clips or brackets |
Other perimeter designs include ClearVu fence panels with alternative configurations. Buyers should assess the actual wire specification and system design.
358 Fence Panels Frequently Asked Questions
Why are 358 fence panels called prison mesh?
The narrow wire spacing discourages ordinary climbing and supports high-security applications. Correctional facilities frequently use similar designs.
What is the standard wire diameter?
Traditional 358 mesh uses approximately 4 mm steel wire. Project specifications may identify additional requirements.
Are the panels impossible to climb?
No physical fence provides absolute protection. Narrow mesh increases climbing difficulty compared with many conventional designs.
Can cutting tools penetrate the mesh?
Specialized equipment can damage steel fencing. Dense wire spacing helps resist certain ordinary cutting methods.
What panel heights does BMP offer?
The reference range includes approximately 2.0 metres through 5.2 metres. Custom configurations require technical approval.
Can 358 fence panels use powder coating?
Yes, suitable polyester powder coatings offer color options and additional surface protection. Proper preparation supports coating adhesion.
Which colors are popular?
RAL 6005 green and RAL 9005 black remain common selections. Other RAL options may suit specific projects.
Do these panels require concrete foundations?
Foundation arrangements depend on approved structural calculations. Different installations may use different support systems.
Can BMP supply gates?
BMP can discuss compatible pedestrian and vehicle gate arrangements. Final designs depend on access requirements.
How should installers determine post spacing?
Approved installation drawings establish the correct spacing. Connection geometry can change the required module.
Are these panels suitable for coastal properties?
Suitable coatings help protect steel against atmospheric corrosion. Coastal exposure still requires careful specification and maintenance.
Can security cameras monitor through the fence?
Yes, open mesh supports camera observation. Correct positioning and focus remain important.
What affects the manufacturing price?
Wire diameter, panel size, coating, post design, and quantity influence production costs.
Can BMP manufacture custom dimensions?
Customers can request alternative configurations. Manufacturing feasibility depends on technical requirements.
What details should buyers provide?
Share panel dimensions, wire specifications, coating requirements, quantities, and delivery location. Engineering drawings improve quotation accuracy.
Why Choose BMP for 358 Fence Panels?
358 fence panels require precise manufacturing, suitable coating systems, and compatible structural accessories. BMP supports international customers through technical specification review and export planning.
Our team can discuss panel heights, post sections, clamp arrangements, and surface finishes. Clear product documentation helps reduce procurement errors.
Related products include ClearVu fence posts for compatible security fencing configurations. Temporary pedestrian management may also use crowd control barriers outside permanent security zones.
Customers should confirm complete specifications and delivery terms before manufacturing begins. BMP can prepare quotations around approved drawings and project requirements.
Conclusion: 358 Fence Panels for Dependable Security
358 fence panels combine narrow welded openings, rigid steel construction, and practical perimeter visibility. These characteristics make them suitable for demanding commercial, industrial, and infrastructure security applications.
Successful installations depend on more than the panels alone. Strong posts, secure fixings, reliable foundations, suitable coatings, and effective maintenance all contribute to performance.
BMP offers multiple configurations to meet different project requirements. Our team can review technical specifications, accessories, protective finishes, and export arrangements.
Contact BMP to request a detailed 358 fence panels quotation for your next security fencing project.