Warehouse and yard separation fencing: dividing the ground the goods move over

A long line, a hard edge, and a fence that does not sag

The run is long, so the panel has to hold itself. A yard boundary is measured in hundreds of metres, and a plain roll of mesh will sag between posts over that distance. The framed mesh fence answers it structurally: welded mesh set into a 20 × 30 mm or 20 × 40 mm rectangular tube frame, bolted to the posts, so a long panel keeps its shape instead of relying on tension alone. Panels are published at 1500 × 2500, 1700 × 2500, 1800 × 2500, 1800 × 3000 and 2000 × 3000 mm.

The aperture and the wire are the specification. What the fence keeps in or out is set by the mesh, not by the paint. On the framed panels the published apertures are 50 × 100, 75 × 150, 50 × 200, 60 × 150 and 80 × 160 mm, and wire runs from ø2.5 to ø6.0 mm — most often ø3.0, ø3.2, ø3.5, ø3.8 or ø4.0. Post type follows the load: ø48 mm round tube with a 1.0, 1.2, 1.5 or 2.0 mm wall, or square tube at 40 × 40, 60 × 60, 40 × 60 or 80 × 80 mm with a 0.8–2.0 mm wall.

Where the boundary is a security line, the top of the fence matters as much as the mesh. The anti-climb Y-post fence carries its panel in the fork of a Y-shaped post with an angled head: no continuous top rail along the line and no flat post cap to take hold of, with the head bent out over the fence line so there is no straight, reachable edge at the top of the panel. That is a structural answer to climbing, and it is also where a topping goes — concertina razor wire, flat-wrap razor wire or barbed wire can be fixed in the angled head above the mesh.

And the honest limit of all three. No security rating and no certification is claimed for the Y-post fence, and none for the razor wire. The pages state structure and application; the standard the project is designed to, and the buyer's acceptance of it, govern the perimeter. That is worth knowing before the specification is written, because a fence that is claimed to be nothing more than what it is can still be the right fence.

Three lines a yard boundary is built from

The framed panel is the general line, the Y-post fence is the security line, and the topping is the addition that goes on top of either. They are quoted as one programme.

• 

  Framed Mesh Fence

  Frame 20 × 30 or 20 × 40 mm at a 0.8–1.5 mm wall; apertures 50 × 100 to 80 × 160 mm; wire ø2.5–6.0 mm; ø48 mm round or 40–80 mm square posts.

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• 

  Anti-Climb Y-Post Fence

  Welded mesh panel in the fork of a Y-shaped post, no top rail along the line, head angled out over the fence line; optional razor or barbed wire in the head.

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• 

  Razor Wire

  Blade strip on a high-tensile core wire in concertina or flat-wrap coils, galvanised or stainless; barbed wire as the lighter alternative.

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Site condition to recommended specification

Every figure in the middle column is printed on a product page on this site. Where a figure is absent — post spacing, blade size, coil diameter — it is because the manufacturer publishes no fixed value and it is confirmed per order.

Six things to settle before a yard order

• Give the run with the corners and the gates. A yard boundary is counted from a run: length, corners, returns and gate openings. Gates, corner posts, end posts and brackets are quoted with the fence, and the exact set is confirmed per specification.
• Fix the aperture before the finish. The aperture sets what the fence keeps in or out, and it is chosen from 50 × 100, 75 × 150, 50 × 200, 60 × 150 or 80 × 160 mm on the framed panels. The finish — hot-dip galvanised, electrostatic spray or PVC dipped — is decided after it.
• Say what the ground will take. Post spacing is confirmed against the drawing or the buyer's standard, and the footing or base detail follows the ground. Clamps, clips, tension bands, base plates or concrete footings are all published fixings; the ground decides.
• Toppings are quoted per order. Razor wire is supplied in coils with brackets chosen for the fence, wall or gate it is fixed to, and the blade dimensions and coil diameter are confirmed per order. The page claims no certification for it.
• Everything is bundled and palletised. Panels, posts and fittings are bundled and palletised for container loading; mesh panels, posts and topping coils likewise. The exact packing method comes with the loading plan.
• No price is published. Price is quoted per order — FOB Wuhan / Shanghai, CIF or DDP — because it depends on the specification, the quantity and the destination port. MOQ, loading plan and lead time are confirmed in the same reply, within one business day.

Four things to send, and what each one decides

Five questions, answered from this site

Which panel sizes are published for a framed mesh fence?

The framed panels are published at 1500 × 2500, 1700 × 2500, 1800 × 2500, 1800 × 3000 and 2000 × 3000 mm, at a mesh aperture of 50 × 100, 75 × 150, 50 × 200, 60 × 150 or 80 × 160 mm. The frame is 20 × 30 mm or 20 × 40 mm rectangular welded tube with a 0.8, 1.0, 1.2 or 1.5 mm wall.

Which posts go with a framed panel?

Round or square. Round posts are ø48 mm tube with a 1.0, 1.2, 1.5 or 2.0 mm wall; square posts are 40 × 40, 60 × 60, 40 × 60 or 80 × 80 mm with a 0.8–2.0 mm wall. Post spacing is confirmed against the drawing rather than assumed.

What makes the Y-post fence anti-climb?

The welded mesh panel is carried in the fork of a Y-shaped post with an angled head, so there is no continuous top rail along the fence line and no flat post cap to take hold of. The head is bent out over the fence line so a climber has no straight, reachable edge at the top of the panel. Optional concertina razor wire, flat-wrap razor wire or barbed wire can be fixed in that head above the mesh.

Is any security rating or certification claimed?

None. The anti-climb Y-post page states that no security rating and no certification is claimed for the fence, and the razor-wire page states that no certification is claimed for the product. Structure and application are stated; the standard the project is designed to, and the buyer's acceptance of it, govern the perimeter.

Where is the Y-post fence used?

As published: airports and airfields, prisons and detention facilities, substations and switchyards, fuel depots, warehouses and logistics yards, water treatment sites, industrial plants and other high-security perimeters.