358 Welded Mesh combines narrow steel apertures, rigid welded construction, and excellent visibility for demanding perimeter security applications. BMP manufactures several panel configurations for industrial sites, airports, prisons, utilities, and commercial properties. Closely spaced horizontal wires discourage ordinary climbing attempts, while strong welded intersections support panel stability. Protective metallic and polymer coatings help maintain steel performance under different outdoor conditions.
Security fencing must achieve more than simple property separation. Industrial operators need controlled entrances, reliable surveillance, and durable boundaries around valuable equipment. Public facilities also require safe access and clear visibility. BMP offers flat panels, V-bend designs, and reinforced configurations to address different project requirements.
Our 358 Welded Mesh range includes several wire diameters, post profiles, panel heights, and surface finishes. Buyers can select compatible gates, clamps, and accessories according to approved engineering drawings. This guide examines manufacturing differences, practical applications, corrosion protection, installation design, and quality inspection.
358 Welded Mesh consists of horizontal and vertical steel wires joined at regular intersections through resistance welding. Its traditional designation represents three inches, half an inch, and eight-gauge wire. These measurements correspond approximately to 76.2 × 12.7 mm mesh centres and 4 mm steel wire.
The narrow rectangular openings provide limited space for fingers and footwear. Conventional chain-link fencing often offers larger apertures and more accessible climbing points. Dense welded construction can also restrict certain hand-operated cutting tools.
Security professionals commonly describe this system as prison mesh or anti-climb fencing. However, different industries use similar panel designs for equipment protection and controlled boundaries. Each application requires suitable structural support and appropriate security procedures.
Manufacturers generally measure mesh spacing between adjacent wire centres. Actual clear openings become smaller after subtracting the wire diameter. A standard 4 mm wire creates approximate openings of 72.2 × 8.7 mm.
Different wire thicknesses change the remaining open space. Buyers should therefore distinguish mesh centre measurements from clear aperture dimensions. Accurate terminology helps avoid disputes during manufacturing inspection.
Climbing requires access to usable footholds and handholds. Narrow horizontal openings reduce these opportunities and complicate ordinary climbing movements. Closely spaced wires may also restrict access for common cutting tools.
Nevertheless, specialized equipment can still penetrate steel fencing. Complete perimeter protection also depends on gates, connections, foundations, and operational security measures.
358 Welded Mesh creates a strong physical barrier without the visual obstruction of a solid wall. Its uniform pattern supports observation across the perimeter. Powder-coated surfaces can complement industrial buildings and landscaped properties.
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| Rigid welded steel mesh provides narrow openings and a consistent surface for high-security perimeter fencing. |
Panel geometry influences both appearance and structural behavior. Flat designs create uniform surfaces, while V-shaped folds introduce visible reinforcement. Heavier wire arrangements offer additional configuration choices.
Customers can review ClearVu fence panels when comparing related welded security systems. Actual wire dimensions and attachment methods should guide product selection.
358 Welded Mesh products can use different wire arrangements and panel profiles. BMP's original specifications identify three manufacturing categories. Each category offers distinct geometry, wire requirements, and installation characteristics.
Type A uses a flat welded panel with narrow rectangular openings. Horizontal wire diameters include several available options. Vertical wires maintain the specified 4 mm reference diameter.
The flat surface supports consistent installation against suitable posts. Manufacturers can supply galvanized or compatible powder-coated finishes. Panel heights cover several common security requirements.
Type B introduces horizontal V-shaped folds into the panel. These bends create structural depth and change the surface appearance. Their number increases across selected taller configurations.
V-shaped profiles can improve stiffness under certain loading conditions. Actual performance depends on wire diameter, fold geometry, and supporting components. Engineers should confirm suitability through approved designs.
Type C uses a different mesh arrangement with heavier vertical wires. The reference specification includes 100 × 15 mm spacing and 5.5 mm vertical steel. Horizontal wire diameter measures 3.5 mm.
This configuration differs from conventional 358 geometry. Its larger openings and reinforcing arrangement require separate security evaluation. Buyers should not assume identical anti-climb performance across all three types.
358 Welded Mesh Type A offers a flat 2D structure for selected high-security applications. BMP supplies several wire combinations and panel dimensions.
| Specification | Type A Details |
|---|---|
| Panel Structure | Flat 2D Welded Mesh |
| Mesh Centres | 76.2 × 12.7 mm |
| Horizontal Wire Diameter | 3.0 / 3.5 / 4.0 mm |
| Vertical Wire Diameter | 4.0 mm |
| Panel Width | 2200 / 2500 mm |
| Panel Heights | 1800 / 2000 / 2100 / 2200 / 2400 / 2500 / 3000 mm |
| Surface Treatment | Galvanized and Polyester Powder Coated / Hot-Dip Galvanized |
| Colors | Selected RAL Colors |
Horizontal wire diameter influences weight, stiffness, and material consumption. Thicker steel generally requires more material per metre. Buyers should select the appropriate combination according to project requirements.
The 3 mm horizontal option differs from traditional 4 mm prison mesh. Such variations may affect mechanical behavior and security performance. Technical drawings should identify both wire directions clearly.
Flat panels provide consistent surfaces for clamp bars and compatible fastening systems. Their uniform profile simplifies alignment along straight fence runs. Installers must still account for post geometry and approved spacing.
358 Welded Mesh Type B combines narrow welded openings with formed horizontal V-bends. The reference range includes different fold quantities for different panel heights.
| Specification | Type B Details |
|---|---|
| Panel Structure | 3D Welded Mesh with V-Bends |
| Mesh Centres | 76.2 × 12.7 mm |
| Horizontal Wire Diameter | 3.0 / 3.5 / 4.0 mm |
| Vertical Wire Diameter | 4.0 mm |
| Panel Width | 2200 / 2500 mm |
| Panel Heights | 1800 / 2000 / 2100 / 2200 / 2400 / 2500 / 3000 mm |
| V-Bends up to 2000 mm | 3 |
| V-Bends from 2100 to 2400 mm | 4 |
| V-Bends at 2500 mm | 5 |
| V-Bends at 3000 mm | 6 |
| Surface Finish | Galvanized and Polyester Powder Coated / Hot-Dip Galvanized |
Horizontal bends introduce depth into an otherwise flat mesh structure. This geometry can influence resistance to deformation. Bend placement also affects how installers connect panels to posts.
Engineers should evaluate loading along both principal directions. A visually deeper panel does not automatically guarantee higher overall security.
358 Welded Mesh Type B may suit commercial and institutional projects that require controlled boundaries. Its formed profile provides a distinctive architectural appearance.
Schools, offices, warehouses, and selected infrastructure sites may prefer this construction. However, high-risk facilities should evaluate the exact technical specification before approval.
358 Welded Mesh Type C uses larger reference apertures and heavier vertical steel wires. BMP offers this alternative for projects requiring a different material arrangement.
| Specification | Type C Details |
|---|---|
| Panel Structure | Flat 2D Reinforced Welded Mesh |
| Mesh Centres | 100 × 15 mm |
| Horizontal Wire Diameter | 3.5 mm |
| Vertical Wire Diameter | 5.5 mm |
| Panel Width | 2200 / 2500 mm |
| Panel Heights | 1800 / 2000 / 2100 / 2200 / 2400 / 2500 / 3000 mm |
| Surface Treatment | Galvanized and Polyester Powder Coated / Hot-Dip Galvanized |
Larger vertical wire diameters increase steel consumption along that direction. This change can influence panel bending characteristics. Horizontal spacing and welded connections also affect performance.
Customers should compare the complete mesh geometry rather than individual wire diameters. Project specifications determine whether this alternative meets the required security level.
Traditional 358 mesh typically uses 76.2 × 12.7 mm centres. Type C instead uses 100 × 15 mm spacing. These patterns provide different clear openings.
The 100 × 15 mm arrangement may suit selected reinforcement requirements. However, buyers should verify climbing resistance and surveillance characteristics independently.
358 Welded Mesh selection depends on security requirements, architectural preferences, and structural conditions. The three BMP configurations offer different technical characteristics.
| Feature | Type A | Type B | Type C |
|---|---|---|---|
| Panel Profile | Flat 2D | 3D V-Bend | Flat Reinforced |
| Mesh Centres | 76.2 × 12.7 mm | 76.2 × 12.7 mm | 100 × 15 mm |
| Horizontal Wire | 3.0–4.0 mm | 3.0–4.0 mm | 3.5 mm |
| Vertical Wire | 4.0 mm | 4.0 mm | 5.5 mm |
| V-Bends | None | 3–6 | None |
| Appearance | Uniform Flat Mesh | Profiled Mesh | Heavier Vertical Wires |
| Structural Evaluation | Required | Required | Required |
Different wire patterns change material consumption and performance. Buyers should request separate technical approval for each configuration. Product names alone cannot establish equivalence.
358 Welded Mesh requires compatible steel posts for reliable perimeter installation. BMP offers rectangular hollow sections and C-shaped profiles.
| Post Type | Profile | Wall Thickness | Finish | Length | Cap |
|---|---|---|---|---|---|
| RHS Steel Post | 80 × 60 mm | 3.0 mm | Galvanized and Polyester Powder Coated / Hot-Dip Galvanized | According to Panel Height | Plastic / Metal |
| C-Type Post | 83 × 64 mm | Confirm by Drawing | Galvanized and Polyester Powder Coated / Hot-Dip Galvanized | According to Panel Height | Plastic / Metal |
358 Welded Mesh panels can attach to compatible rectangular hollow steel posts. Flat mounting surfaces support different bracket arrangements. Engineers should confirm post orientation and wall thickness.
C-shaped profiles provide alternative connection geometry. These posts may accommodate specialized clips or brackets. Final dimensions should follow the approved assembly drawing.
Post caps help close exposed structural openings. Proper detailing can reduce water accumulation inside hollow sections. Material compatibility remains important for long-term durability.
Post dimensions alone cannot establish foundation suitability. Soil bearing capacity, fence height, wind exposure, and connection forces influence foundation design.
358 Welded Mesh costs depend partly on the selected steel wire diameters. Larger solid wires contain more steel per metre. This relationship helps explain differences between panel configurations.
| Wire Diameter | Theoretical Steel Weight per Metre | Relative to 3.0 mm Wire |
|---|---|---|
| 3.0 mm | 0.0555 kg | 100% |
| 3.5 mm | 0.0755 kg | 136.1% |
| 4.0 mm | 0.0987 kg | 177.8% |
| 5.5 mm | 0.1865 kg | 336.1% |
These theoretical figures assume solid steel with a density near 7,850 kilograms per cubic metre. Actual coated wire weights may differ slightly.
358 Welded Mesh configurations with thinner horizontal wires may reduce steel consumption. However, overall panel performance depends on both wire directions.
Heavier vertical steel may influence stiffness in selected loading conditions. Welding quality and post spacing remain equally important considerations.
Heavy panels require suitable lifting equipment and stable transportation support. Increased material consumption also influences shipping costs. Contractors should review handling requirements before delivery.
358 Welded Mesh quality begins with accurate steel wire preparation. Manufacturers must control wire spacing, welding consistency, and finished panel geometry.
Production teams prepare steel wires according to the approved diameter. Straight material supports accurate positioning during welding.
Welding equipment joins crossing wires through controlled current and pressure. Correct parameters contribute to dependable intersections. Poor welding conditions can reduce panel performance.
Flat designs retain a uniform profile. V-bend products require additional forming operations. Manufacturing teams should verify bend locations and dimensions.
Protective coatings require suitable substrate preparation. Cleaning and pretreatment help support finish quality.
358 Welded Mesh inspection should include wire dimensions, panel geometry, and welded intersections. Buyers can request tests according to approved acceptance criteria.
358 Welded Mesh requires an appropriate protective finish for its operating environment. BMP offers galvanized steel and compatible organic coating options.
Hot-dip galvanizing provides zinc protection for suitable fabricated steel components. Zinc creates a protective barrier and offers sacrificial corrosion resistance.
Product standards must match the actual galvanizing process. Continuously galvanized wires and welded mesh require appropriate specifications.
Polyester powder coating provides decorative color and additional surface protection. Correct pretreatment supports adhesion and coating durability.
Compatible PVC finishes offer another protective option. Buyers should confirm coating thickness, preparation, and manufacturing compatibility.
358 Welded Mesh can use a compatible metallic coating beneath an organic finish. This combination may provide additional corrosion protection.
Actual performance depends on coating quality, environmental exposure, and maintenance. Buyers should request the full coating specification.
Green RAL 6005 suits many industrial and landscaped environments. Black RAL 9005 complements modern commercial buildings. Other colors may suit individual requirements.
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| Protective metallic and polymer finishes help preserve security fencing under outdoor exposure. | Accurate welded mesh construction supports panel alignment and consistent perimeter appearance. |
358 Welded Mesh can serve industrial compounds and logistics facilities around Durban. The city's coastal environment creates challenges for exposed steel structures.
Airborne salt, humidity, and industrial pollutants may accelerate corrosion. Warehouses also require secure boundaries around valuable cargo and machinery.
Salt deposits can accumulate on posts, fasteners, and panel surfaces. Suitable protective coatings reduce corrosion risks. Regular inspections remain important.
Maritime logistics operations require controlled access to cargo areas. Security mesh provides physical separation without obstructing observation. Compatible gates support vehicle movements.
358 Welded Mesh helps create visible industrial boundaries near exposed waterfront locations. Engineers should also consider local wind conditions.
Property managers can compare ClearVu fence panels for different security configurations. Actual product specifications should determine suitability.
358 Welded Mesh installations around Cape Town require attention to coastal exposure and wind loading. Local conditions vary considerably across the region.
Wind can create bending forces in fence posts. Taller panels generally require careful structural assessment. Engineers should verify foundations and connections.
Marine salts may affect protective coatings over time. Suitable finishes help reduce deterioration. Routine cleaning may support maintenance.
Warehouses, business parks, and selected residential properties need controlled boundaries. Welded mesh supports visibility and access management.
358 Welded Mesh can protect commercial properties across Gauteng. Johannesburg contains extensive manufacturing, distribution, and warehousing operations.
Some facilities face theft, vandalism, and unauthorized entry concerns. Actual risks depend on the specific property and location.
Storage facilities require protection around valuable goods and equipment. Strong security mesh supports controlled access. Camera coverage can improve observation.
Office buildings may favor security barriers with a restrained appearance. Black powder-coated panels can complement contemporary architecture.
Substations require restricted access around potentially hazardous equipment. Fencing should coordinate with electrical clearances and safety requirements.
358 Welded Mesh supports security around facilities where unauthorized access could disrupt important operations. Each application requires a suitable risk assessment.
Airport facilities need boundaries around restricted operating areas. Narrow mesh helps discourage climbing. Final designs must follow applicable aviation requirements.
Correctional institutions require controlled perimeters and reliable monitoring. Welded security mesh can support layered protective arrangements.
Military compounds often require secure access control. Physical barriers work alongside surveillance and authorized entry procedures.
Water infrastructure contains sensitive equipment and technical installations. Security fencing helps separate restricted areas from public access.
Rail operators may protect maintenance depots and technical equipment. Fencing supports controlled access around selected infrastructure.
Schools require boundaries that balance security with user safety. Appropriate mesh designs can maintain visibility. Emergency access remains essential.
358 Welded Mesh installation begins with an accurate site survey. Structural post selection and foundation design must follow project requirements.
Measure the boundary and identify gates, corners, and terrain changes. Check underground utilities before excavation.
Use approved drawings to determine installed spacing. Bracket geometry may affect the final module.
Excavate according to structural requirements. Soil capacity, panel height, and wind exposure influence foundation dimensions.
Position posts vertically and maintain accurate alignment. Temporary support may help during construction.
Use suitable lifting equipment for the panel dimensions. Align mesh edges carefully. Protect decorative coatings during handling.
Install compatible clamps, brackets, and bolts. Follow approved tightening procedures. Inspect every connection.
Verify alignment, coating condition, and gate operation. Repair damaged surfaces before final acceptance.
Related ClearVu fence installation guidance covers general construction principles. Actual mounting details must follow the selected BMP drawings.
358 Welded Mesh quantity planning requires accurate boundary measurements and approved installed spacing. Nominal panel width does not always equal post centre distance.
Measure each straight boundary section. Deduct gate openings and special access points.
Use manufacturer drawings to determine post spacing. Overlap and bracket arrangements can affect dimensions.
Divide the effective length by the approved module. Review remaining distances for custom sections.
Use the approved fixing schedule for each panel type. Different post profiles may require different brackets.
Consider a straight perimeter measuring 300 metres. Assume an approved installed module of 2.5 metres for illustration.
| Item | Illustrative Quantity |
|---|---|
| Total Fence Length | 300 m |
| Assumed Bay Spacing | 2.5 m |
| Number of Bays | 120 |
| Panel Quantity | 120 |
| Post Positions | 121 |
| Connection Hardware | According to Approved Drawings |
This example excludes gates, corners, and special sections. The final quantity depends on actual connection geometry.
358 Welded Mesh buyers should establish inspection requirements before manufacturing. Quality control helps verify dimensions, welding, coatings, and accessories.
| Inspection Item | Recommended Verification |
|---|---|
| Wire Diameter | Check horizontal and vertical wires. |
| Mesh Spacing | Measure centre-to-centre dimensions. |
| Welded Intersections | Inspect joint consistency. |
| Panel Dimensions | Verify height, width, and squareness. |
| V-Bend Geometry | Confirm fold count and location. |
| Post Sections | Check dimensions and wall thickness. |
| Clamp Hardware | Verify compatibility and quantities. |
| Surface Coating | Inspect finish and approved coating properties. |
| Packaging | Check pallet protection and stability. |
358 Welded Mesh relies on consistent welding for panel rigidity. Inspectors should identify incomplete joints and visible defects.
Accurate dimensions simplify installation. Buyers should agree on tolerances before production.
Different coating systems require different inspection methods. Metallic coating mass and powder thickness represent separate measurements.
358 Welded Mesh requires suitable packaging during loading and transportation. BMP uses pallet support and protective materials according to shipment requirements.
Protective sponge materials reduce direct contact between panels. Suitable padding helps limit scratches.
Steel corner protection can improve bundle stability. Correct positioning reduces handling damage.
Metal plates beneath securing straps can distribute contact pressure. Protective materials help preserve finished surfaces.
Wooden support plates may distribute stacking loads. Shipping teams should verify cargo loading limitations.
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| Protective pallet arrangements help secure welded mesh panels and reduce transportation damage. |
358 Welded Mesh requires regular inspection despite its strong welded construction. Coatings and fastening components may deteriorate under demanding conditions.
Check for damage, corrosion, and visible deformation. Address problems before they spread.
Loose hardware can reduce connection reliability. Replace defective components with compatible parts.
Repair exposed steel using suitable materials. Coastal properties may require more frequent attention.
Plants can obstruct surveillance and access. Keep important inspection routes clear.
358 Welded Mesh products may qualify for BMP's 15-year manufacturer warranty under applicable product terms. Coverage depends on the approved specification and contractual conditions.
Customers should review maintenance responsibilities and warranty exclusions. Regular inspections remain necessary.
358 Welded Mesh costs depend on steel consumption, panel geometry, surface treatment, and accessories. Buyers should compare complete technical specifications.
Thicker wires increase material consumption. Different Type A, B, and C configurations therefore require separate pricing.
Taller panels generally require more steel. Structural posts and installation costs may also increase.
Galvanizing and polymer coating involve different processing requirements. Environmental exposure should guide selection.
Panel dimensions and cargo weight influence freight arrangements. Buyers should confirm delivery responsibilities.
Foundations, labor, and equipment contribute to total expenditure. Local site conditions can affect these costs.
Related Clear View fence prices offer broader budgeting context. Exact quotations require confirmed project specifications.
The name refers to three inches, half an inch, and eight-gauge wire. Traditional specifications use approximately 76.2 × 12.7 mm centres.
Type A uses flat welded mesh. Type B incorporates horizontal V-shaped bends.
Type C uses 100 × 15 mm mesh spacing and heavier vertical wires. Its geometry differs from conventional 358.
Narrow openings discourage ordinary climbing attempts. However, no physical fence guarantees complete intrusion prevention.
Dense openings restrict access for certain common tools. Specialized equipment may still damage steel.
BMP's reference range includes 2200 mm and 2500 mm widths. Custom dimensions require manufacturing confirmation.
Yes, BMP lists 3000 mm as a reference panel height. Structural suitability requires project approval.
The original specification lists three to six bends depending on height. Exact arrangements follow approved drawings.
Yes, RAL 9005 black represents a common finish. Additional colors may suit specific projects.
Suitable coating systems can help manage corrosion. Marine exposure and maintenance require careful consideration.
BMP can quote compatible posts, clamps, fasteners, and related components. Buyers should confirm the complete supply scope.
Wire diameter, mesh spacing, panel dimensions, and reinforcement influence weight. Protective coatings contribute additional material.
Yes, periodic inspection helps maintain coating condition and connection reliability. Environmental exposure affects maintenance frequency.
Use approved post spacing and measured fence lengths. Gates and special sections influence final quantities.
Provide mesh specifications, panel sizes, coating requirements, accessories, quantity, and destination. Technical drawings improve accuracy.
358 Welded Mesh projects require accurate technical communication and dependable manufacturing. BMP offers flat, V-bend, and reinforced panels with compatible accessories.
Our team can review wire diameters, mesh spacing, post profiles, and surface treatment requirements. Clear drawings help reduce production misunderstandings.
Projects using related steel supports may also consider ClearVu fence posts. Temporary pedestrian zones can use crowd control barriers outside permanent security boundaries.
Each product requires compatible engineering and installation details. Buyers should confirm the complete specification before ordering.
358 Welded Mesh combines narrow apertures, welded steel strength, and practical visibility for demanding perimeter applications. BMP's three panel types offer different wire configurations and structural characteristics.
Successful installations require suitable foundations, compatible posts, secure fasteners, and appropriate corrosion protection. Routine inspection also supports long-term reliability.
BMP supplies multiple panel configurations, protective finishes, and export packaging options. Our team can review drawings and prepare project-specific quotations.
Contact BMP to discuss your 358 Welded Mesh requirements and request a technical quotation.
