Dongguan, Guangdong, China — manhole covers, gratings & drainage products WhatsApp +86 137 1341 3733  ·  615535816@qq.com
HC Hongcheng
GUANGDONG HONGCHENG BUILDING MATERIALS CO., LTD.
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Hot-dip galvanized steel grating panels stacked

Photos: galvanized panels, serrated grating, the welded bar-and-rod structure, and an installed trench cover.

Product Detail

Hot-Dip Galvanized Steel Gratings

Welded steel bar gratings with a hot-dip galvanized finish, used as trench covers, platform floors and walkways. This line is produced by partner factories we work with long-term; Hongcheng selects the specification with you and quality-checks the goods before dispatch.

Pedestrian20–25 mm height, 3 mm plate
Light vehicles30 mm height, 3 mm plate
Truck areas40 mm height, 5 mm plate

Application guidance follows the manufacturer's specification sheet for the standard sizes below. For engineered spans or concentrated loads, confirm the span and loading with us before ordering.

MaterialCarbon steel, hot-dip galvanized finish (uncoated black panels on request)
ConstructionBearing bars resistance-welded with twisted square cross rods
TypesPlain surface · Serrated (anti-slip) surface
Standard sizes (L×W×H)500×200×20 · 500×250×20/30 · 500×300×20/30/40 · 500×400×40 · 1000×200×25 · 1000×250×25 · 1000×300×25/30
Plate thickness3 mm / 5 mm, by size and application
Custom sizesPanels can be cut to your trench or platform dimensions — send a drawing
SupplySupplied through our partner factories — sourced & quality-checked by Hongcheng, Dongguan
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Material & Structure

Welded Bars, Galvanized After Fabrication

A steel grating is a grid of vertical bearing bars joined by twisted square cross rods, welded at every intersection (see the close-up photo). The open grid drains water and lets light and air through, while the bars carry the load in the bearing direction.

Panels are hot-dip galvanized after fabrication, so the zinc coating covers the welds and cut edges as well — the standard finish for outdoor trenches and industrial floors. Serrated bearing bars add grip in wet or oily areas.

  • ✓Welded bearing-bar grid — load carried in the bar direction
  • ✓Hot-dip galvanized after fabrication, welds included
  • ✓Plain or serrated anti-slip surface
  • ✓Cut-to-size panels for trenches and platforms

Documents

Product Information We Can Provide

A product specification sheet for your confirmed size and load class can be provided with the order on request. This website makes no certification claims: if your project requires specific documentation, state it in your inquiry and we will confirm exactly what we can provide before you order.

Packing & Transport

How the Goods Are Packed

Panels are stacked flat and strapped for transport, with sizes grouped per your cutting list. The final packing arrangement and transport plan are confirmed with you per order, as part of the quotation.

Ordering

How an Inquiry Works

01

Send Your Specification

Tell us the product, size, load class (where applicable) and quantity — WhatsApp is fastest.

02

Check & Confirm

We confirm the exact specification against the physical product, so the quotation matches the goods.

03

Quotation & Confirmation

You receive the quotation from Li Xiaopeng directly, and we confirm the final specification together before any order is placed.

Questions

Steel Gratings — FAQ

How do I order the right panel size?

Send the trench or platform dimensions (or a drawing) and tell us what crosses it — pedestrians, cars or trucks. Panels are cut to size; the standard sizes in the table are the common starting points.

Plain or serrated — which should I choose?

Serrated bars grip better in wet, oily or sloped areas; plain bars are the standard choice for dry walkways and trench covers. Both come with the same galvanized finish.

Is the grating galvanized before or after welding?

After. Panels are fabricated first and hot-dip galvanized as finished panels, so welds and edges are coated too.

Can I order uncoated (black) panels?

Yes — black, uncoated panels are available on request for indoor or later-painted installations. State it in your inquiry.

What should I include in my inquiry?

Panel sizes or a drawing, application (what crosses it), quantity, and your destination country (and port, if known).

Request a Quote

Request a Quote for This Product

Fill in the form — it opens WhatsApp with your inquiry already written out, addressed to Li Xiaopeng. Or email us at 615535816@qq.com.

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Need a Price? Send the Size & Load Class.

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