Chequered Plates: Sizes, Weight Chart, Prices & Specifications

Chequered Plates: Sizes, Weight Chart, Prices & Specifications<\/h2>

Chequered plates — also called checker plates, diamond plates, or tread plates — are steel sheets with a raised diamond (lozenge) pattern rolled into one face. The pattern provides slip resistance in all directions, which makes chequered plate the standard floor and walkway material in factories, warehouses, plants, and on vehicles. This page is the complete buying reference from Sino East Steel Group — a direct steel structure manufacturer in Tianjin, China: chequered plate sizes and the full checker plate weight chart, material and galvanizing options, 2026 export prices, and the exact way to order chequered plates for your project.

1. What Is a Chequered Plate?

A chequered plate is a hot-rolled steel sheet with a pattern of raised diamonds or lozenges rolled into the top surface during production. The pattern height is typically 0.2–0.3 mm equivalent steel (raised approximately 1–2 mm above the base), which creates grip for footwear and tyres without weakening the plate. Chequered plate is produced by passing sheet through finishing rolls engraved with the pattern; the reverse face remains flat, so the plate can be welded or bolted down like a plain sheet.

Chequered plates are manufactured to GB/T 3277 (Chinese chequered plate standard), EN 10025-2 (European grades), and ASTM A36 / A786 (American tread plate). The most common pattern is the diamond (lozenge) type; other patterns such as teardrop and round-dot are available for special applications. Steel grades follow EN 10025-2, GB/T 1591, ASTM A36, or JIS G 3101.

2. Chequered Plate vs Plain Plate: Which One Do You Need?

Comparison	Chequered Plate	Plain Plate
Surface	Raised diamond pattern, slip-resistant	Flat, smooth
Thickness range	3–8 mm standard (up to 12 mm on request)	3–120 mm
Weight	Base weight + pattern addition (about +0.2–0.3 mm equivalent)	Thickness × 7.85 kg/m² exactly
Best for	Floors, walkways, stair treads, vehicle decks	Structural members, base plates, vessels
Slip resistance	Excellent in all directions	None — becomes slippery when wet
Typical standards	GB/T 3277, ASTM A786, EN 10025-2	EN 10029, GB/T 709, ASTM A36/A572

If you need walking or working surfaces, chequered plate is the right product; if the steel carries structural load, see our steel plates page for the full flat-plate range.

3. Chequered Plate Sizes & Dimensions

Standard chequered plate thicknesses run from 3 mm to 8 mm, with 10–12 mm available on request for heavy-duty floors. Common sizes are 1220 × 2440 mm (4 × 8 ft), 1250 × 2500 mm, 1500 × 3000 mm, 1500 × 6000 mm (5 × 20 ft), and 2000 × 6000 mm. Widths from 1000 mm to 2000 mm and lengths up to 6000 mm (longer on special order) can be supplied cut to size.

Thickness (base)	Common Sizes (mm)	Pattern	Typical Use
3 mm	1220 × 2440 / 1250 × 2500 / 1500 × 3000	Diamond 25–40 mm lozenges	Light walkways, stair covers
4 mm	1220 × 2440 / 1250 × 2500 / 1500 × 3000	Diamond	Platform floors, ramps
5 mm	1250 × 2500 / 1500 × 3000 / 1500 × 6000	Diamond	Factory floors, vehicle decks
6 mm	1500 × 3000 / 1500 × 6000 / 2000 × 6000	Diamond	Heavy walkways, loading bays
8 mm	1500 × 3000 / 1500 × 6000 / 2000 × 6000	Diamond	Heavy-duty floors, ramps

Dimensional tolerances follow GB/T 3277 and EN 10051: thickness tolerance ±0.3–0.5 mm, width/length +0/+20 mm, and flatness per class N. Pattern height and spacing are as rolled by the mill and verified by inspection.

4. Chequered Plate Weight Chart (kg per m²)

Indicative theoretical weights for diamond chequered plate per GB/T 3277. The pattern adds roughly 0.2–0.3 mm equivalent thickness, so chequered plate weighs more than flat plate of the same nominal thickness. Use this checker plate weight chart for freight, floor-load, and craneage planning.

Nominal Thickness	Chequered Plate kg/m²	Plain Plate kg/m² (for comparison)	Typical Sheet 1500 × 3000 kg
3 mm	25.6	23.6	115.2
4 mm	33.4	31.4	150.3
5 mm	41.2	39.3	185.4
6 mm	49.1	47.1	221.0
8 mm	64.8	62.8	291.6
10 mm	80.1	78.5	360.5

Worked example: a 6 mm chequered plate 1500 × 3000 mm has area 4.5 m² and weighs 49.1 × 4.5 = 221.0 kg. Order 100 sheets and you have roughly 22.1 tonnes — plan freight accordingly. For other sizes, multiply kg/m² by the sheet area.

5. Chequered Plate Material Grades & Finishes

Grade / Option	Specification	Best For
Structural carbon steel	Q235B / SS400 / A36 — yield 235–250 MPa	General floors, walkways, ramps
High-strength steel	Q355B / S355JR — yield 355 MPa	Heavy-duty floors, vehicle decks
Marine / offshore	ASTM A131 Gr.A / AH36	Ships, barges, offshore platforms
Stainless steel	304 / 316 (cold-rolled chequered)	Food plants, chemical plants, marine
Hot-dip galvanized	HDG per ISO 1461, 70–85 µm	Outdoor platforms, coastal sites
Aluminium chequered	6061 / 5052 (on request)	Lightweight floors, trailers

For plant floors and outdoor walkways in humid climates, specify hot-dip galvanized chequered plate so the cut edges and pattern are protected after fabrication. Every batch ships with EN 10204 3.1 mill test certificates.

6. Chequered Plate Prices in 2026 (FOB China)

Indicative export pricing from our Tianjin factory (FOB, 2026). Chequered plate prices follow hot-rolled coil markets; treat these ranges as planning figures and request a firm quotation for your thickness, size, and quantity.

Product	Indicative Price	MOQ
Chequered plate Q235B / SS400 / A36, 3–8 mm	USD 580–700 per tonne FOB	10 tonnes (mix sizes OK)
High-strength chequered plate Q355B	USD 620–740 per tonne FOB	10 tonnes
Heavy chequered plate 10–12 mm	USD 600–720 per tonne FOB	10 tonnes
Hot-dip galvanized chequered plate	USD 850–1,050 per tonne FOB	10 tonnes
Cutting to size / drilling	Included or nominal charge	—

For a firm chequered plate price quotation, send your thickness, sizes, quantities, and destination port to paul@sinoeaststeel.com. To estimate the full landed cost of a steel building in your market, see our Kenya, Nigeria, and UAE cost guides.

7. Chequered Plate Applications

• Factory and warehouse floors — machine areas, aisles, and loading bays where oil and water make floors slippery.
• Platforms and walkways — mezzanine floors, catwalks, and inspection platforms in industrial plants.
• Stair treads and landings — cut-to-size treads for steel stairs, standard in 3–6 mm chequered plate.
• Vehicle decks and ramps — trailer floors, truck beds, and loading ramps where tyres need grip.
• Ships and barges — deck plating, gangways, and engine-room floors in A131 grades.
• Agricultural and marine structures — platforms, gangways, and gantries in galvanized or stainless chequered plate.

For the full range of steel structure products we manufacture — PEB, warehouses, heavy steel, and all secondary sections — start from our product catalogue.

8. Why Buy Chequered Plates Direct from Sino East Steel Group

Sino East Steel Group is a direct China steel structure manufacturer, not a trader. Since 1993 we have operated a 50,000 m² fabrication facility in Tianjin Industrial Park, Daqiuzhuang — China’s largest steel processing hub — with CNC cutting, drilling, welding, and hot-dip galvanizing capacity under one roof.

• Factory-direct pricing — no middleman; 20–40% below regional re-seller prices.
• Certified quality — ISO 9001:2015, ISO 3834-2, EN 1090 EXC3/EXC4, AWS D1.1; EN 10204 3.1 mill test certificates on every batch.
• Custom fabrication — chequered plate cut to size, drilled, and fabricated into treads, platforms, and ramps to your shop drawings.
• Export documentation — invoice, packing list, certificate of origin, and EN 10204 3.1 certificates for smooth clearance.
• 100,000+ tonnes annual capacity — stock sizes ship in 1–2 weeks; cut-to-size and galvanized orders in 3–4 weeks.

Before committing to any factory, use our manufacturer verification checklist — we welcome third-party inspection at any stage of production.

9. How to Order Chequered Plates from China

1. Send your thickness, size (or cutting list), grade/finish, quantity, and destination port.
2. Receive an itemized quotation within 24–48 hours (FOB/CIF/CFR).
3. Approve pattern type and any fabrication details.
4. We produce and test (SGS/BV/TÜV inspection optional).
5. We ship FCL from Tianjin with full export documentation.

For complete projects — chequered plates plus primary steel and purlins — see our procurement guide for importers.

10. Pattern, Tolerances & Standards

The standard diamond pattern has lozenges of roughly 25 × 60 mm with a pattern height of about 1–2 mm above the base surface, equivalent to an added steel thickness of 0.2–0.3 mm in weight terms. Tolerances follow GB/T 3277 and EN 10051: base thickness ±0.3–0.5 mm, width and length +0/+20 mm, and flatness per class N after leveling. The pattern side is always identified on the packing list so installers place the chequered face upward.

Where anti-slip performance must be verified, the raised pattern is measured with a depth gauge and reported on the inspection certificate. For aggressive chemical or marine environments, specify stainless chequered plate (304/316) or hot-dip galvanized carbon steel — the pattern adds no crevice risk beyond normal sheet cleaning.

11. Packing, Shipping & Delivery

Chequered plates are stacked with the pattern face protected, banded in bundles with corner boards and waterproof wrapping, and loaded into 20 ft or 40 ft containers or break-bulk holds at Tianjin Port. Sheets are placed pattern-up with interleaving paper where required to avoid surface marking. Standard export documentation — commercial invoice, packing list, bill of lading, certificate of origin, and EN 10204 3.1 mill test certificates — is provided with every shipment.

Typical transit times: 3–4 weeks to the Middle East (Jebel Ali), 4–6 weeks to East and West Africa (Mombasa, Lagos), 4–5 weeks to Europe, and 3–5 weeks to North America. For full-project shipping details, read our international shipping and installation guide.

12. Chequered Plate FAQ

Q: What is a chequered plate?
A: A chequered plate (checker plate, diamond plate, or tread plate) is a steel sheet with a raised diamond pattern rolled into one face for slip resistance, used for floors, walkways, stair treads, and vehicle decks.

Q: What are the standard chequered plate sizes?
A:Standard thicknesses are 3, 4, 5, 6, and 8 mm (10–12 mm on request), in sizes such as 1220 × 2440 (4 × 8 ft), 1250 × 2500, 1500 × 3000, and 1500 × 6000 mm. Custom cut sizes are available.

Q: How much does chequered plate cost in 2026?
A: In 2026, Q235B/SS400/A36 chequered plate runs roughly USD 580–700 per tonne FOB China, high-strength Q355B USD 620–740, and hot-dip galvanized USD 850–1,050 per tonne. Freight and duty vary by destination.

Q: How much does chequered plate weigh per m²?
A: Use the checker plate weight chart: 3 mm = 25.6 kg/m², 4 mm = 33.4 kg/m², 5 mm = 41.2 kg/m², 6 mm = 49.1 kg/m², 8 mm = 64.8 kg/m². The pattern adds about 2 kg/m² over flat plate.

Q: What is the difference between chequered plate and diamond plate?
A:They are the same product — “chequered plate” (common in the UK, Africa, Asia) and “diamond plate” or “checker plate” (common in North America) both refer to the raised-diamond pattern sheet described on this page.

Q: Which standard are chequered plates made to?
A:Dimensions and pattern follow GB/T 3277 or EN 10051; grades follow EN 10025-2, GB/T 1591, ASTM A36/A786, or JIS G 3101. Stainless chequered plate follows ASTM A240.

Q: Can chequered plates be galvanized?
A:Yes — hot-dip galvanizing to ISO 1461 (70–85 µm) protects floors and walkways in outdoor and coastal environments, including cut edges if coated after fabrication.

Q: Do you cut chequered plates to size?
A:Yes — we cut sheets to exact dimensions and can drill, bend, and fabricate treads, platforms, and ramps to your shop drawings, saving site labour.

Q: How do I get a chequered plate quotation?
A:Email your thickness, sizes, quantities, and destination port to paul@sinoeaststeel.com or message us on WhatsApp — you will receive an itemized FOB/CIF quotation within 48 hours.

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