EN S235JR S355JR Galvanized Steel Grating | Heavy Load Drain Grate with Robust Grid Structure
| Category | Details | Category | Details |
| Product Name | Metal Grating Floor | Material Grade | EN S235JR, S355JR Structural Steel |
| Standard Sizes | Standard width: 600–1500 mm | Dimensional Deviation | Length tolerance: ±2 mm |
| Bearing bar height: 25–50 mm | Width tolerance: ±2 mm | ||
| Grid gap: 30–100 mm, custom sizes acceptable | Thickness tolerance: ±1 mm | ||
| Quality Testing Items | Spectrometer chemical composition analysis | Surface Finishing Options | Hot-dip galvanizing (HDG) |
| Tensile & hardness mechanical tests | Electro-galvanizing | ||
| Flatness check | Powder coating & spray paint | ||
| Welding strength verification | Uncoated raw black steel | ||
| Typical Application Scenarios | Factory walkways & operation platforms | ||
| Steel stair treads | |||
| Trench drainage covers | |||
| Warehouse access walkways | |||
| Ship decks and outdoor engineering facilities | |||
| Grating Type | Bearing Bar Pitch / Spacing | Bar Width | Bar Thickness | Cross Bar Pitch | Mesh / Opening Size | Load Capacity |
| Light Duty | 19 mm – 25 mm (3/4"–1") | 19 mm | 3–6 mm | 38–100 mm | 30 × 30 mm | Up to 250 kg/m² |
| Medium Duty | 25 mm – 38 mm (1"–1 1/2") | 19 mm | 3–6 mm | 38–100 mm | 40 × 40 mm | Up to 500 kg/m² |
| Heavy Duty | 38 mm – 50 mm (1 1/2"–2") | 19 mm | 3–6 mm | 38–100 mm | 60 × 60 mm | Up to 1000 kg/m² |
| Extra Heavy Duty | 50 mm – 76 mm (2"–3") | 19 mm | 3–6 mm | 38–100 mm | 76 × 76 mm | >1000 kg/m² |
| Model | Bearing Bar Size (mm) | Bearing Bar Pitch (mm) | Cross Rod Pitch (mm) | Suitable Usage |
| G253/30/100 | 25×3 | 30 | 100 | Light-duty walkways & stair treads |
| G303/30/100 | 30×3 | 30 | 100 | General factory platforms |
| G305/30/100 | 30×5 | 30 | 100 | Medium load bearing platforms |
| G323/30/100 | 32×3 | 30 | 100 | Conventional industrial platforms |
| G325/30/100 | 32×5 | 30 | 100 | Heavy load workshop platforms |
| G403/30/100 | 40×3 | 30 | 100 | Support frame for heavy machinery |
| G404/30/100 | 40×4 | 30 | 100 | Support frame for heavy machinery |
| G405/30/100 | 40×5 | 30 | 100 | Heavy industrial working platforms |
| G503/30/100 | 50×3 | 30 | 100 | Extra heavy load bearing platforms |
| G504/30/100 | 50×4 | 30 | 100 | Extra heavy load bearing platforms |
| G505/30/100 | 50×5 | 30 | 100 | Factory operation heavy-duty platforms |
| G254/30/100 | 25×4 | 30 | 100 | Light to medium load platforms |
| G255/30/100 | 25×5 | 30 | 100 | Light to medium load platforms |
| G304/30/100 | 30×4 | 30 | 100 | Medium-heavy industrial platforms |
| Customization Item | Optional Solutions | Specific Information |
| Overall Sizing | Custom Length, Width & Bearing Bar Pitch | Fully adjustable sizes: length 1–6 m, width 500–1500 mm, bearing bar pitch 25–100 mm, matched to your actual load demands. |
| Load Grade | Light, Medium, Heavy, Extra Heavy Duty | We tailor load performance to fit your project’s structural standards by adjusting bearing bar thickness and mesh layout. |
| Fabrication Service | Cutting, Drilling, Welding, Edge Reinforcement | Panels can be cut and drilled to your exact drawings; edges trimmed or strengthened; pre-welded parts supplied to speed up on-site assembly. |
| Surface Finishes | Hot-Dip Galvanizing, Powder Coating, Industrial Paint, Anti-Slip Coating | Pick finishes according to indoor, outdoor or coastal working environments for long-term rust protection and slip prevention. |
| Marking & Packing | Custom Tags, Exclusive Project Codes, Export-Grade Packaging | Tags printed with steel grade, dimensions and project info; packages fit sea container, flat truck and local land transport. |
| Extra Functional Designs | Serrated Anti-Slip Surface, Custom Mesh Layouts | Serrated grating for better anti-slip safety; mesh size and layout adjustable to satisfy functional and visual demands. |
1. Walkways
Creates higher level of security and a flat walking surface for personnel housed in industrial plant, factory, and warehouse.
The open-grid pattern creates a nonslip walking surface and permits dirt, liquids and debris to pass through to prevent accumulation on the surface and potential safety hazards.
2. Steel Staircases
Superior choice for commercial and industrial stair treads in applications where long life and underfoot safety are critical.
Optional Serrated or Anti Slip Inlay with more traction can be applied.
3. Work Platforms
Frequently in workshops and production lines, for machineries, tools and the staffs.
The open design provides adequate ventilation and makes sanitize work tops easy. Clean the work areas."
4. Drainage Areas
Its open-grid construction makes easy left, water, oils and other liquids to flow.
Frequently outdoors, on factory floors, or next to drain channels, with the need to keep floors dry and clean in order to avoid capturing water.
| Material & Quality | Performance & Customization | Application & Delivery | Service & Brand Advantage |
| 1. High-grade ASTM A36, A572 Gr.50, EN S235JR & S355JR carbon steel raw material | 1. High load-bearing performance for heavy-duty industrial use | 1. Widely used in factories, warehouses, power plants, chemical plants, mines, municipal drainage, bridges and port projects | 1. Professional team offers product matching, custom solutions and full-cycle after-sales support |
| 2. ISO 9001 full-process quality inspection system | 2. Fully customizable panel size, bearing bar specification, mesh layout and surface finish | 2. Streamlined production for fast lead time | 2. Factory-direct competitive pricing via mass production and integrated supply chain |
| 3. Standard hot-dip galvanizing for reliable anti-rust, moisture and chemical erosion resistance | 3. Stable structural strength for long-term service life | 3. Mature global logistics network with full export paperwork support | 3. Long-term export experience across Americas, Southeast Asia, Middle East & Africa, trusted by global contractors and distributors |
Packaging
Securely bundled with steel straps for safe transportation.
Waterproof wrapping protects the galvanized surface from moisture and damage.
Product labels include specifications, dimensions, and material grade.
Wooden pallets and customized export packaging available upon request.
Delivery
Lead Time: 7–15 days after order confirmation.
Shipping: Container (FCL/LCL), bulk cargo, truck, and rail transport.
Optimized loading solutions to reduce shipping costs.
Complete export documents provided, including MTC, packing list, invoice, and certificate of origin.
Worldwide delivery with professional logistics support.
Long-term cooperation with shipping companies like MSK, MSC, COSCO can better logistics service chain, logistics service chain bright to provide you with service.
We have strict control over the packaging material purchase to the transport vehicle scheduling following the quality management system ISO9001 standards in every process.
1. Why Choose Royal Steel Group as Your Galvanized Steel Grating Supplier?
Royal Steel Group offers high-quality galvanized steel grating at competitive prices, with strict quality control, fast delivery, and extensive global export experience.
2. Can You Provide Customized Steel Grating?
Yes. Panel size, load-bearing bar size, spacing, load-bearing capacity, galvanized layer thickness, and packaging can all be customized to project requirements.
3. What Quality Documents Can You Provide?
We can provide Material Testing Certificate (MTC), inspection reports, certificates of origin, packing lists, commercial invoices, and third-party inspection reports upon request.
4. What is Your Delivery Time?
Standard production lead time is typically 7-15 days after order confirmation, depending on order quantity and customization requirements.
5. Which Markets Does Royal Steel Group Serve?
We export galvanized steel grating to North America, Latin America, Southeast Asia, the Middle East, Africa, and other international markets, supporting industrial, commercial, and infrastructure projects worldwide.
