Specifications:

Gauge: 9–11 gauge (thinner = stronger; 9 gauge = 3.8 mm).

Mesh Size: 1–2" (25–50 mm) diamond openings.

Height: 3–12 ft (0.9–3.6 m).

Coating: Class 3 galvanizing (≥245 g/m² zinc) or PVC-coated for corrosion resistance.

Applications:

Residential yards, playgrounds, sports fields.

Temporary construction site barriers.

B. Welded Mesh/Wire Mesh Fence

Material: Galvanized steel, powder-coated steel, or aluminum.

Specifications:

Wire Diameter: 3–6 mm.

Panel Sizes: 6–8 ft (1.8–2.4 m) height; 6–10 ft (1.8–3 m) width.

Mesh Patterns: Square, rectangular, or anti-climb designs.

Applications:

Industrial facilities, warehouses, animal enclosures.

High-security areas (e.g., prisons) with anti-cut mesh.

C. Ornamental Iron/Wrought Iron Fence

Material: Wrought iron or steel with decorative elements.

Specifications:

Height: 3–8 ft (0.9–2.4 m).

Design: Scrolls, spikes, or finials; often powder-coated.

Gauge: ½" to 1" thick bars.

Applications:

Residential gardens, historic properties.

Commercial properties requiring aesthetics + security.

D. Palisade Fence

Material: Galvanized steel or aluminum.

Specifications:

Picket Design: Vertical steel pales with pointed tops.

Height: 6–10 ft (1.8–3 m).

Spacing: 2–4" (5–10 cm) between pales.

Applications:

High-security sites (substations, military bases).

Perimeter protection for industrial zones.

E. Steel Bar Fence

Material: Mild steel, galvanized steel, or stainless steel.

Specifications:

Bar Thickness: ½"–1" (12–25 mm).

Spacing: 4–6" (10–15 cm) between bars.

Height: 4–12 ft (1.2–3.6 m).

Applications:

Parking lots, commercial properties.

Barriers for machinery or hazardous areas.

2. Key Specifications

Material Grades:

Galvanized Steel: Class 3 (heavy zinc coating) for outdoor use.

Stainless Steel: Grade 304 (standard) or 316 (marine-grade).

Aluminum: Lightweight, rust-proof (ideal for coastal areas).

Coatings:

Powder Coating: UV-resistant, color options (e.g., black, bronze).

PVC Coating: Adds durability and aesthetics (common for chain-link).

Tensile Strength:

350–550 MPa for standard steel; up to 1,500 MPa for high-tensile variants.

3. Applications by Fence Type

详见表格3

4. Security Enhancements

Toppings: Add razor wire, barbed tape, or anti-climb spikes.

Hybrid Systems: Combine with electric fencing or motion sensors.

Foundation: Concrete footings for anti-ramming strength.

5. Environmental Considerations

Coastal Areas: Use stainless steel (Grade 316) or aluminum.

High Humidity: Hot-dip galvanized steel with Class 3 coating.

UV Exposure: Powder-coated or PVC-coated finishes.

6. Cost Comparison

详见表格6

7. Standards & Certifications

ASTM A392: Galvanized steel chain-link specifications.

BS 1722: British standards for palisade fencing.

ISO 1461: Hot-dip galvanizing quality assurance.

8. Installation Tips

Posts: Space steel posts 6–10 ft apart (closer for high-security fences).

Concrete Footings: Use for stability in windy or high-traffic areas.

Gates: Match material and security level (e.g., heavy-duty steel gates for palisade fences).

9. Maintenance

Galvanized Steel: Inspect for rust spots annually; touch up with zinc paint.

Powder-Coated: Clean with mild detergent; avoid abrasive tools.

Wrought Iron: Repaint every 5–7 years to prevent rust.

10. Conclusion

Metal fences offer tailored solutions for diverse needs:

Security: Palisade or welded mesh with anti-climb features.

Aesthetics: Ornamental iron with custom designs.

Affordability: Chain-link for residential or temporary use.

Select based on threat level, environment, and budget. Pair with lighting, cameras, or sensors for enhanced protection. Always consult local building codes and professionals for high-security or custom installations.