A 358 security fence protects valuable properties through dense welded mesh, rigid steel posts, and tamper-resistant connections. Its narrow openings discourage climbing while preserving visibility across the boundary. Industrial operators, security contractors, and property developers use these systems for demanding perimeter projects.
The designation 358 describes three-inch spacing, half-inch spacing, and approximately eight-gauge steel wire. These measurements correspond to 76.2 × 12.7mm mesh centres and roughly 4mm wire diameter. Unlike solid walls, welded security mesh allows cameras and personnel to observe surrounding activity.
BMP manufactures security fencing systems in Anping County, Hebei Province, China. Since 2006, our company has supplied steel fencing products to international markets. Customers can select mesh panels, steel posts, security clamps, protective coatings, and compatible entrance gates.
Many buyers compare high security clear view fence products before choosing a complete perimeter system. Proper selection considers structural strength, security requirements, corrosion exposure, and installation conditions.
Conventional fencing often contains openings large enough for fingers and footwear. Dense 358 mesh substantially reduces these gripping opportunities. Its welded intersections also help maintain consistent panel geometry.
Security performance depends on more than wire spacing. Strong posts, suitable foundations, and reliable fasteners prevent weaknesses around panel edges. A complete system should address gates and vulnerable access points.
The standard mesh uses 76.2mm spacing between vertical wires and 12.7mm between horizontal wires. Both measurements describe wire centres rather than the clear openings. With 4mm wire, the approximate clear spaces measure 72.2mm and 8.7mm.
This narrow horizontal gap provides limited space for fingers or footwear. Flat welded panels also avoid convenient projecting footholds. However, no fence guarantees absolute protection against determined intrusion.
Dense wire spacing restricts access for some conventional cutting tools. Steel grade, wire diameter, and weld quality influence actual resistance. Strong welded intersections help preserve panel integrity during ordinary service conditions.
Manufacturers should test weld performance using recognised procedures. The original specification quotes 540–690 N/m², but this unit cannot establish meaningful weld strength. Buyers should request verified tensile and weld-test data instead.
Traditional 358 panels use approximately 4mm horizontal and vertical steel wires. BMP also offers alternative dimensions for suitable projects. Custom specifications require approval before manufacturing.
| Parameter | Reference Specification |
|---|---|
| Product | 358 Welded Security Mesh Fence |
| Material | Low-Carbon Steel Wire |
| Steel Grades | Q195 / Q235, subject to approved material specification |
| Standard Mesh Centres | 76.2 × 12.7mm |
| Alternative Mesh Centres | 75 × 12.5mm |
| Horizontal Wire | 4.0mm |
| Vertical Wire | 4.0mm |
| Reference Panel Width | 2515mm |
| Panel Heights | 2000–5200mm |
| Post Sections | 60 × 60 / 80 × 80 / 100 × 100 / 120 × 120mm |
| Connection | Clamp Bars / Brackets / M8 Security Bolts |
| Surface Finish | Galvanized / Galfan / Powder Coated |
| Colours | RAL6005 / RAL9005 / Custom RAL |
| Packaging | Export Steel Pallets / Protective Film |
Mesh dimensions influence climbing resistance, steel consumption, and finished panel weight. Customers comparing clear view mesh fencing should review the complete material schedule.
Higher panels increase structural demands and foundation loading. Supporting posts must accommodate wind exposure, panel weight, and connection forces. The following catalogue combinations provide preliminary design references.
| Fence Height | Panel H × W (mm) | Post Length × Section × Wall (mm) | Clamp Bar (mm) | Intermediate / Corner Fixings |
|---|---|---|---|---|
| 2.0m | 2000 × 2515 | 2700 × 60 × 60 × 2.5 | 2000 × 60 × 5 | 7 / 14 |
| 2.4m | 2400 × 2515 | 3100 × 60 × 60 × 2.5 | 2400 × 60 × 5 | 9 / 18 |
| 3.0m | 3000 × 2515 | 3800 × 80 × 80 × 2.5 | 3000 × 80 × 6 | 11 / 22 |
| 3.3m | 3300 × 2515 | 4200 × 80 × 80 × 2.5 | 3300 × 80 × 6 | 12 / 24 |
| 3.6m | 3600 × 2515 | 4500 × 100 × 100 × 3 | 3600 × 100 × 7 | 13 / 26 |
| 4.2m | 4200 × 2515 | 5200 × 100 × 100 × 4 | 4200 × 100 × 8 | 15 / 30 |
| 4.5m | 4500 × 2515 | 5500 × 100 × 100 × 5 | 4500 × 100 × 8 | 16 / 32 |
| 5.2m | 5200 × 2515 | 6200 × 120 × 120 × 5 | 5200 × 100 × 8 | 18 / 36 |
These figures reflect the original reference schedule, not approved structural calculations. Engineers must verify post dimensions, clamp quantities, and foundation requirements before construction.
Manufacturing begins with wire selection and dimensional inspection. Automated resistance welding equipment joins horizontal and vertical wires at their intersections. Operators monitor spacing, panel alignment, and visible welding defects.
Low-carbon steel supports practical welding and forming operations. Material grade influences mechanical properties and manufacturing performance. Customers should confirm Q195 or Q235 suitability through approved specifications.
Manufacturers use measuring instruments to verify actual wire dimensions. Production teams also inspect mesh pitch and finished panel geometry. Consistent measurements help maintain compatibility with posts and clamps.
Buyers examining fence panels should distinguish 358 mesh from lighter 3510 configurations. Wire diameter differences affect weight and structural characteristics.
Protective coatings help steel withstand moisture and atmospheric contaminants. Coating selection depends on environmental exposure, required appearance, and project specifications. Several manufacturing processes offer different protection characteristics.
Hot-dip galvanizing after fabrication protects prepared steel surfaces with zinc. Proper processing can also protect welded intersections. Coating inspection should follow relevant specifications.
Pre-galvanized wire offers another manufacturing approach. However, welding can affect zinc coverage around intersections. Customers should confirm whether galvanizing occurs before or after fabrication.
Polyester powder coating provides colour and additional surface protection. Green RAL6005 and black RAL9005 remain common choices. Custom RAL finishes can match surrounding architecture.
Surface preparation influences coating adhesion and durability. Suitable zinc protection beneath the coating can improve corrosion resistance. Buyers should request coating thickness and inspection requirements.
Galfan uses a zinc-aluminium alloy coating for steel wire protection. PVC finishes create an additional barrier over suitable substrates. The actual performance depends on coating quality and environmental conditions.
Coastal projects may require enhanced corrosion protection and maintenance. Buyers should compare coating specifications rather than relying on finish names alone.
Strong mesh panels require compatible posts and secure connections. Weak attachment points can undermine an otherwise robust perimeter. Full-height clamp bars distribute fastening forces along the panel edge.
Some designs use approximately 75mm overlap between adjacent panels. Slotted clamp bars and M8 bolts then secure the assembly. Alternative bracket systems may connect panels without overlap.
Security bolts discourage casual removal of exposed hardware. Stainless steel fasteners offer corrosion resistance in suitable environments. Compatible washers and nuts help maintain connection integrity.
Installers should follow approved fastening patterns and torque requirements. Corner connections may require additional hardware. Related ClearVu fence clamps illustrate another security mesh fastening category.
Standard 358 mesh uses one welded steel layer. Reinforced alternatives incorporate heavier wires or additional mesh structures. Each design addresses different protection requirements.
| System | Construction | Typical Purpose |
|---|---|---|
| Standard 358 | Single-layer 4mm welded mesh | Anti-climb perimeter protection |
| 3510 Mesh | Approximately 3mm welded wire | Lighter security boundaries |
| Super 6 Type | Heavier vertical wires | Greater structural resistance |
| Double-Skin 358 | Additional welded mesh reinforcement | More demanding security applications |
Specialised products require their own technical documentation and testing. Additional wire does not automatically establish a certified security rating.
South Africa contains major industrial, logistics, and infrastructure facilities. These properties often require controlled access and continuous perimeter observation. Dense welded mesh helps discourage opportunistic climbing.
Johannesburg and Ekurhuleni industrial areas experience summer storms and industrial dust. Appropriate coatings help protect steel surfaces under these conditions. Security lighting and cameras complement physical fencing.
Coastal Durban properties face additional corrosion challenges from airborne salt. Suitable protective finishes and regular cleaning can improve durability. Buyers comparing clearview fencing Durban should consider marine exposure.
Electrical substations require reliable boundaries and controlled access. Dense mesh provides physical separation while preserving external observation. Gate systems must accommodate maintenance personnel and equipment.
Designers should also consider electrical safety requirements and grounding arrangements. Fence construction must follow applicable engineering standards. Site-specific risk assessments determine appropriate protective measures.
Warehouse operators often manage valuable inventory and frequent vehicle movements. Perimeter fencing helps separate loading operations from public access. Compatible gates support controlled deliveries.
Security planning should include lighting, surveillance, and suitable access procedures. The clear view fence panels category illustrates related boundary applications.
Installation begins with accurate boundary measurements and approved drawings. Contractors should identify ground slopes, corners, gates, and underground services. These conditions influence post spacing and foundation design.
Panel width does not always equal effective installed coverage. A 2515mm panel with 75mm overlap provides approximately 2440mm nominal coverage per repeating bay. Actual post centres depend on the fastening arrangement.
Bracket systems may use different spacing. Contractors must verify dimensions before drilling or excavating foundations. Correct layout prevents avoidable material shortages.
Fence height influences wind loading and supporting post requirements. Taller panels generally demand stronger foundations. Soil conditions also affect foundation dimensions.
Engineers should evaluate exposed coastal sites carefully. Corner and gate posts may experience different loads from intermediate supports. Construction should follow approved structural calculations.
Material estimates begin with the total boundary length. Contractors should subtract gate openings and account for corners. Effective bay width determines the preliminary panel quantity.
For example, a 300-metre straight boundary needs approximately 123 panels at 2.44-metre effective coverage. Actual requirements depend on the final connection layout. Posts, clamps, gates, and spare materials require separate calculations.
Project buyers can compare clearview fencing from China when planning imported materials. Accurate drawings improve quotation consistency.
Export packaging helps protect panels during handling and international shipment. BMP uses suitable pallets, protective film, and securing materials. Additional separators reduce contact between coated surfaces.
Protective padding supports the lowest panels on each pallet. Steel corner guards strengthen vulnerable package edges. Strapping plates reduce direct pressure against finished mesh.
Wooden top boards can protect lower pallets during suitable stacking arrangements. Loading teams should verify pallet stability and container weight distribution. Clear packing lists simplify receiving inspections.
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Large construction projects often require temporary boundaries before permanent fencing arrives. Contractors use temporary fencing panels to separate work zones. These movable systems accommodate changing site access requirements.
Compatible temporary fence blocks support panels during construction. Exposed locations may also need suitable bracing.
Other projects favour garrison fencing for architectural steel boundaries. Its vertical tubular construction differs from dense 358 welded mesh.
Routine inspections help identify loose fasteners, damaged coatings, and unexpected gaps. Maintenance personnel should examine corners, gates, and vulnerable connections. Early repairs reduce progressive deterioration.
Cleaning removes dust and environmental deposits. Coastal installations may require more frequent attention because salt increases corrosion exposure. Suitable repair coatings help protect damaged steel surfaces.
BMP offers a 15-year manufacturer warranty for its ClearVu and Clearview products, subject to applicable terms. Proper installation and maintenance support long-term service performance.
The designation describes three-inch spacing, half-inch spacing, and approximately eight-gauge steel wire. Metric reference dimensions are 76.2 × 12.7mm and roughly 4mm diameter.
Narrow openings discourage convenient finger and toe holds. This makes climbing more difficult than many larger-opening fences. However, determined intrusion remains possible.
Reference materials include Q195 and Q235 low-carbon steel. Final material selection depends on manufacturing requirements. Buyers should approve the applicable steel specification.
Specialised systems can achieve approximately six-metre heights. Such projects require engineered posts, foundations, and installation methods. Standard catalogue dimensions may differ.
Coastal projects require careful corrosion protection. Suitable galvanized and coated systems can improve durability. Buyers should confirm exposure conditions and coating specifications.
Yes, open welded mesh preserves useful sightlines. Camera placement and lighting determine actual coverage. Security designers should verify observation angles.
BMP offers compatible pedestrian and vehicle gate solutions. Customers should specify opening dimensions and operating requirements. Gate hardware requires appropriate structural support.
A 358 security fence combines dense welded steel mesh, reliable visibility, and adaptable perimeter components. Its narrow openings discourage climbing while supporting security observation.
Strong posts, suitable coatings, secure fasteners, and engineered foundations determine overall performance. BMP supplies configurable security fencing systems and export packaging. Contact our team with drawings and project specifications for a tailored quotation.
