Safety Tread ProductsGB/T 33974 · ASTM A786/A786M · DIN 59220 (reference)

Industrial Checkered Plate

Heavy-duty traction for demanding surfaces

Our safety tread program encompasses two engineered families: raised-pattern checkered plate (diamond, two-bar, or five-bar ridges rolled directly into the plate surface for heavy-duty multi-directional grip) and perforated anti-slip plate (sheet metal punched into raised fish-eye or crocodile-mouth openings to combine high-traction footing with rapid drainage and ventilation). Both solutions deliver dependable slip resistance and structural durability across industrial walkways, access platforms, vehicle running boards, and hazardous stairways.

  • Cold or hot rolled uniform traction surface
  • Multi-directional anti-slip traction; slip resistance confirmed per project
  • Processing options can be coordinated through selected in-house production or partner factories, subject to project requirements and confirmation.
Raised diamond pattern checkered plate surface

Surface Pattern

Diamond / 5-Bar / Lentil Tread

Self-Draining
Surface Pattern Profiles

Standard checkered and anti-slip plate profiles

Select matching surface profiles engineered for specific grip ratings, fluid drainage, and industrial load requirements—spanning rolled raised-pattern ridges (two-bar, five-bar, diamond) and punched perforated anti-slip plates (fish-eye and crocodile-mouth openings).

Raised-Pattern Checkered Plate

Two-Bar Checkered Plate
Classic Profile
Two-Bar Checkered Plate
Parallel two-rib raised pattern, classic anti-slip flooring.

Key Specifications

  • Rib Height: 1.0 mm – 1.8 mm
  • Thickness: 2.0 mm – 8.0 mm
  • Material: Carbon steel & stainless
Five-Bar Checkered Plate
Heavy-Duty Standard
Five-Bar Checkered Plate
Five parallel ribs, widely used tread pattern for platforms and stairs.

Key Specifications

  • Rib Height: 1.2 mm – 2.0 mm
  • Thickness: 2.5 mm – 12.0 mm
  • Material: Steel, aluminum, 304/316
Diamond Checkered Plate
Architectural & Safety
Diamond Checkered Plate
Raised diamond lug pattern, the most common decorative and anti-slip surface.

Key Specifications

  • Lug Height: 1.0 mm – 2.2 mm
  • Thickness: 1.5 mm – 10.0 mm
  • Material: Galvanized & hot-rolled steel

Perforated Anti-Slip Plate

Fish-Eye Anti-Slip Plate
Perforated & Raised
Fish-Eye Anti-Slip Plate
Punched round raised fish-eye openings engineered for multidirectional grip, fast liquid drainage, and light self-cleaning.

Key Specifications

  • Hole Diameter: 8.0 mm – 16.0 mm
  • Thickness: 1.5 mm – 4.0 mm
  • Material: Carbon steel, stainless & aluminum
Crocodile Mouth Anti-Slip Plate
Slit & Lifted
Crocodile Mouth Anti-Slip Plate
Slit-and-raised serrated crocodile-mouth openings delivering maximum traction, heavy debris clearance, and high airflow.

Key Specifications

  • Opening Length: 40.0 mm – 65.0 mm
  • Thickness: 1.8 mm – 5.0 mm
  • Material: Galvanized steel, aluminum & 304
Technical Specs MatrixGB · ASTM · EN · ISO Reference Standards

Engineering specifications at a glance

Review alloy grades, standard gauges, and modular sheet dimensions engineered to fulfill architectural and industrial blueprints.

Available Materials & Grades

Carbon SteelStructural Reference
ASTM A36 / Q235B (GB/T 700) / S235JR (EN 10025-2) — comparable, not identical, confirmed per project

Common structural grades for platforms, ramps, and load floors; material properties and test documentation confirmed per project.

Stainless SteelCorrosion Resistant
ASTM A240 (304 / 316) · GB/T 4237 · EN 10088-2 (1.4301 / 1.4401)

Austenitic stainless grades for chemical, marine, and washdown environments; designation and finish confirmed per project.

Aluminum AlloyLightweight & Rigid
ASTM B632/B632M (tread plate) · GB/T 3880 · EN 485-2 (e.g. 6061-T6, 3003-H22)

Rolled aluminum tread plate for walkways and transit decking; alloy, temper, and pattern confirmed per project.

Thickness & Gauge Range (1/8" - 1/2")

Light Gauge (1/8 in / 3.2 mm)1/8 in (11 Gauge)

Suitable for pedestrian infill, decorative panels, and equipment safety guards.

Standard Industrial (3/16 in - 1/4 in)3/16 in - 1/4 in (4.8 - 6.4 mm)

Balanced weight and stiffness for stair treads, catwalk walkways, and access platforms.

Heavy-Duty Plate (3/8 in - 1/2 in)3/8 in - 1/2 in (9.5 - 12.7 mm)

Engineered for rolling loads, forklift traffic, trench covers, and loading dock aprons.

Standard Sheet Dimensions

Standard 4×8 ft Format48 × 96 in (1219 × 2438 mm)

Modular format for stair treads, pedestrian walkways, and light equipment skids. Standard sheet sizes may be available; availability is confirmed at quotation.

Extended 4×10 ft Format48 × 120 in (1219 × 3048 mm)

Reduced joint layout for continuous truck beds, long catwalk spans, and intermediate loading decks. Standard sheet sizes may be available; availability is confirmed at quotation.

Wide-Span 5×12 ft Format60 × 144 in (1524 × 3658 mm)

Heavy-traffic coverage for forklift ramps, logistics loading dock aprons, and large trench plates. Standard sheet sizes may be available; availability is confirmed at quotation.

Typical Structural Applications

Anti-Slip Stair Treads
Serrated Nosing
Truck Bed Flooring
Heavy Rolling Load
Industrial Platforms
Safety Grated
Access Ramps
Traction Surface
Catwalks & Walkways
Continuous Span
Loading Docks
Heavy traffic areas
Custom Fabrication & CAD Review

Need custom perforations, patterns, or exact cutouts?

Upload your CAD / DXF specifications for review by our team.
Reference standards: GB/T 33974, ASTM A786/A786M (steel), ASTM B632/B632M (aluminium), DIN 59220; details confirmed per project.
Standards ReferenceCheckered Plate

Applicable standards

Listed as reference standards only, never certificates held by MutualMetal. The applicable standard, material grade, and documentation are confirmed per product and project.

GB/T 33974, ASTM A786/A786M, and DIN 59220 cover hot-rolled patterned steel plate with different pattern designations and units; ASTM B632/B632M covers aluminum alloy tread plate. Punched anti-slip profile plates (such as fish-eye and crocodile-mouth profiles) are punched/formed sheets outside these hot-rolled standards. Slip resistance is confirmed per project.

Product standards

GBChina
Chinese National Standards (GB)
  • GB/T 33974Hot-rolled checkered steel plate and strip
ASTMUnited States / International
ASTM International
ANSIUnited States
ANSI / NAAMM / EMMA

No direct product standard in this series; floor plate patterns and materials reference ASTM standards (e.g. ASTM A786), with walking surface safety referencing ANSI/ASSP A1264.2.

ISOInternational
International Organization for Standardization

No dedicated ISO checkered plate product standard; ISO 14122-2 applies as an application safety reference for walkway surfaces.

ENEurope / Germany
European Standards (EN / DIN)

Technical standards

GBChinese National Standards (GB)
  • GB/T 700Carbon structural steel
  • GB/T 13912Hot-dip galvanized coatings on metal products — technical requirements and test methods
ASTMASTM International
  • ASTM A36Structural carbon steel, bar and plate material
  • ASTM A240/A240MChromium and chromium-nickel stainless steel plate, sheet, and strip
  • ASTM B209/B209MAluminum and aluminum-alloy flat sheet, coiled sheet, and plate
  • ASTM A123/A123MZinc (hot-dip galvanized) coatings on iron and steel products
ISOInternational Organization for Standardization
  • ISO 1461Hot-dip galvanized coatings on fabricated iron and steel articles — specifications and test methods
ENEuropean Standards (EN / DIN)
  • EN 10025-2Non-alloy structural steels — technical delivery conditions
Need an in-depth cross-system comparison of GB, ASTM, ANSI, ISO, and EN specifications?
Compare all standards on the Standards Map
Custom Tread & Plate Quotes

Request a quote for checkered plate

Send your required plate thickness, raised pattern or perforation style, alloy grade, and sheet dimensions. Our team coordinates checkered plate supply through selected in-house production and partner factories.

Specification review by our team

Pattern designations, sheet thickness, and cutting schedules reviewed by our team.

Standards listed as references only

ASTM A786, GB/T 33974, and DIN 59220 serve as benchmark references. Slip resistance confirmed per project.

Documentation on request

Material test reports available on request, depending on product and producing factory.

Quote timing confirmed per project

Submit tread plate specifications

Share pattern style (diamond, two-bar, five-bar, or perforated anti-slip), sheet gauge, and cut sizes to receive an itemized quote.