How to Specify 358 Anti-Climb Fence for High-Security Perimeter Projects

Aug.05.2026

A procurement guide to 76.2 × 12.7 mm mesh, 4 mm wire, panels, posts, coatings, gates and evidence

Meta title	358 Anti-Climb Fence Specification and RFQ Guide
Meta description	Specify 358 anti-climb fence panels, posts, fixings, coatings, gates and project evidence with a clear, comparable quotation schedule.
Suggested slug	/358-anti-climb-fence-specification-rfq-guide/
Primary keyword	358 anti climb fence specifications
Supporting keywords	76.2 x 12.7 mm security mesh; 358 fence panels and posts; high security fence quotation

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The name 358 identifies the mesh geometry commonly written as 3 inches × 0.5 inch with 8-gauge wire. MaiFa’s current English product page expresses this as 76.2 × 12.7 mm apertures made with 4.0 mm wire welded at every intersection. The small opening reduces usable hand and foot holds while preserving sight lines through the welded mesh.

A high-security perimeter, however, is more than a mesh pattern. Panel height and width, post section, post spacing, foundations, panel fixings, gates, toppings, coating and interfaces with detection or surveillance systems all affect the final design. Buyers should specify the system and its performance requirement instead of treating every 358 panel as equivalent.

Evidence boundary: this article uses MaiFa’s published dimensional options. It does not repeat unverified impact ratings, attack-delay times, service-life claims or anonymous testimonials. Any performance rating must be supported by a report that matches the exact quoted fence and foundation configuration.

1. Confirm the defining mesh and selected panel size

Item	MaiFa published option	RFQ instruction
Mesh aperture	76.2 × 12.7 mm	Confirm orientation and finished aperture tolerance.
Wire	4.0 mm	State diameter tolerance and coating measurement basis.
Panel width	2000, 2200, 2500 or 3000 mm	Select one width and coordinate with post spacing.
Panel height	1000 to 4000 mm	Select height from the threat, site and local requirements.
Post options	60 × 40, 60 × 60, 60 × 80 or 80 × 80 mm	Select section, wall, grade, cap and foundation interface.
Post wall	1.5 to 3.0 mm	Select one thickness; confirm tolerance.
Surface options	Hot-dip galvanizing after welding, Galfan, or polyester powder over galvanization	State coating route, colour and acceptance evidence.

2. Match height and system design to the threat

The required fence height should come from the site’s security assessment, not from a generic product recommendation. Define the asset, public interface, likely intrusion method, required visibility, response plan and whether the fence is a boundary marker, access-control barrier or part of a layered security system.

State whether the top is flat or includes an approved extension or topping.
Identify any clear-zone, buried apron or ground-gap requirement.
Coordinate gates so their infill, clearances and locking do not create a weaker opening.
Locate cameras and lighting so posts, toppings and vegetation do not block sight lines.
If an electronic detection system is planned, provide its mounting and cable-route requirements before finalising the panel and post details.

3. Specify posts, foundations and panel fixings

Post selection cannot be made from panel height alone. The structural designer or project team should provide wind, terrain, soil, fence height, post spacing, gate loads and any additional topping or equipment. The quotation should identify the post section and wall, steel grade, cap, baseplate or embedded length, foundation concept and corrosion protection.

Panel-to-post fixings should be shown on a detail drawing. Ask for the number and position of clamps or cover bars, bolt diameter and grade, tamper-resistant features if required, protective finish and installation torque or method. Check that fasteners, clamps and posts are compatible with the selected coating system and can be replaced without damaging the surrounding panel.

4. Choose the coating for the exposure

MaiFa publishes hot-dip galvanizing after welding, Galfan and polyester powder coating over galvanization as options. The buyer should state the site exposure, colour, coating sequence, coating mass or thickness requirement, measurement method, sampling plan and repair rule for damaged areas. “Galvanized and powder coated” is not complete unless the layers and acceptance criteria are defined.

For coastal, industrial or frequently washed locations, pay particular attention to cut edges, welds, fastener interfaces, post bases and water traps. The correct specification depends on environment, maintenance plan and required design life; it should not be inferred from colour alone.

5. Treat gates as part of the security line

A 358 perimeter can be undermined by an under-specified gate. State the clear opening, leaf arrangement, frame and infill, post section, hinges, latch or lock, ground clearance, drop bolts, stops, automation interface and emergency-egress requirements. Vehicle gates may require independent foundations and supports.

Ask the supplier to show how the 358 mesh terminates at the gate frame and how adjacent fence panels connect to gate posts. If the project requires access control, detection or monitored locking, identify the responsibility for each interface in the quotation.

6. What to include in a 358 fence quotation

Quotation section	Minimum information
Panels	Quantity, 76.2 × 12.7 mm mesh, 4.0 mm wire, finished height/width, tolerance and coating.
Posts	Section, wall, grade, length, spacing, cap, baseplate/embedded detail and finish.
Fixings	Clamp or cover-bar drawing, bolts, tamper resistance, quantity, finish and spares.
Foundations	Design responsibility, loads/input data, foundation concept and excluded civil works.
Gates/toppings	Complete drawings, hardware, locks, extensions, interfaces and separate unit prices.
Evidence and QA	Approved drawings, material/coating records, weld and dimensional inspection, requested performance reports and pre-shipment documentation.
Logistics	Packing method, panel/post protection, package dimensions/weights, loading plan, Incoterm and named place.

7. Copy-and-send RFQ

Please quote a complete 358 anti-climb fence system for [project/location]. Fence height: [mm]; total length: [m]; panel width preference: [mm]. Required mesh: 76.2 × 12.7 mm; wire: 4.0 mm, subject to stated tolerances. Please propose and state the post section, wall, length and spacing using the supplied [wind/terrain/soil] information. Itemise panel fixings, tamper-resistant fasteners, spares, [gate schedule], [top treatment] and coating system/colour. Provide approved drawings, the requested material and coating records, inspection plan and any configuration-specific performance evidence. Quote [Incoterm] to [named place], including packing, weights, production schedule and warranty scope.

Frequently asked questions

Why is it called 358 mesh?

The trade name refers to the traditional inch dimensions: 3 inches × 0.5 inch aperture with 8-gauge wire. MaiFa publishes 76.2 × 12.7 mm mesh with 4.0 mm wire.

Does a 358 panel automatically make a complete high-security fence?

No. Posts, foundations, fixings, gates, top treatment, ground gap, site layout and operational response all matter.

Which panel width should be ordered?

MaiFa publishes 2000, 2200, 2500 and 3000 mm widths. Select the width together with post spacing, loads, packing and installation constraints.

Can 358 fence be powder coated?

MaiFa publishes polyester powder coating over galvanization as an option. State the colour, layer sequence, thickness or mass and inspection method.

How should a claimed security rating be verified?

Request the test or assessment report and check that the tested panel, posts, foundations, gates and installation conditions match the offered system.

Ask MaiFa for a system drawing, not a panel-only price

MaiFa can prepare a quotation around the required 358 panel size, post section, fixings, finish and gate schedule. The best basis for comparison is an approved system drawing and an itemised bill of materials tied to the project inputs.

View MaiFa’s 358 anti-climb fence information.