ASTM Standard Hot Dip Galvanized Steel Grating Bar Grating Stair Tread Supplier
| Item | Details |
| Product Name | Hot Dip Galvanized Welded Steel Grating |
| Manufacturing Process | Welded Steel Bar Grating |
| Surface Treatment | Hot Dip Galvanized (HDG), Painted, Untreated |
| Material | Carbon Steel (Q235/Q355, ASTM A36, S235JR) |
| Standard | ASTM A123, EN ISO 1461, YB/T 4001 |
| Bearing Bar Type | Flat Bar, I-Bar, Serrated Bar |
| Cross Bar Type | Twisted Bar, Round Bar |
| Application | Platforms, Walkways, Stair Treads, Industrial Flooring |
| 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 |
| Bearing Bar Size | Bearing Bar Spacing | Cross Bar Spacing | Standard Panel Size |
| 25×3 mm | 30 mm | 100 mm | 1000×3000 mm |
| 25×5 mm | 30 mm | 100 mm | 1000×4000 mm |
| 30×3 mm | 30 mm | 100 mm | 1000×3000 mm |
| 30×5 mm | 40 mm | 100 mm | 1000×4000 mm |
| 32×5 mm | 40 mm | 100 mm | 1220×3660 mm |
| 40×5 mm | 40 mm | 100 mm | 1000×4000 mm |
| 50×5 mm | 50 mm | 100 mm | 1000×6000 mm |
Common Steel Grating Dimensions
Width: 500 mm, 600 mm, 800 mm, 1000 mm, 1200 mm
Length: 1000 mm, 2000 mm, 3000 mm, 4000 mm, 6000 mm
Branch Height: 20 mm, 25 mm, 30 mm, 40 mm, 50 mm
Branch Thickness: 3 mm, 5 mm
Before ordering custom steel grating, customers need to confirm several key specifications, including panel dimensions, structural design, material selection, surface treatment, processing requirements, safety accessories, and installation components. ROYAL GROUP provides complete customized steel grating solutions to meet different industrial and construction requirements.
Overall Panel Dimensions
The finished length (span) and width of each steel grating panel must be provided. The span direction should be clearly indicated, as it must run parallel to the load-bearing bars to ensure proper load capacity and structural performance.
Structural Specifications
- Bearing Bar Size: Defined by height × thickness, with common sizes including 32×5mm and 40×5mm.
- Mesh Spacing: Customized according to project requirements, including:Different load requirements can be achieved by adjusting bar dimensions and spacing.
- Bearing bar center-to-center spacing
- Cross rod center-to-center spacing
Material & Surface Treatment Options
ROYAL GROUP supplies steel gratings in various materials and finishes:
- Carbon Steel: Q235B for general industrial and construction applications
- High Strength Steel: Q355B for heavy-duty platforms and high-load areas
- Stainless Steel: SS304/SS316 for chemical plants, marine projects, and corrosive environments
Surface Finishes:
- Hot dip galvanized steel grating for excellent corrosion resistance
- Painted or powder-coated finishes for customized protection and appearance
- Galvanizing options include pre-galvanized steel before fabrication or full hot-dip galvanizing after welding for maximum durability
Customized Panel Processing
Steel grating panels can be customized based on installation requirements:
- Surface Design:
- Smooth flat grating for standard applications
- Serrated anti-slip grating for wet, oily, or high-safety environments
- Custom Cutting & Openings:
- Round holes for equipment installation
- Edge notches for structural fitting
- Reserved grooves for pipes, cables, and other facilities
Edge Protection & Safety Accessories
Additional components are available to improve safety and installation performance:
- Full edge banding to reinforce panel edges
- Kick plates for platform safety
- Anti-slip nosing strips for stair tread gratings
- Customized edging solutions according to project drawings
Installation Hardware
To ensure secure installation, ROYAL GROUP provides matching fastening accessories:
- Saddle clips
- G-clips
- M-clips and specialized fixing clamps
- Customized fasteners for different supporting frames
With professional customization capability, strict quality control, and global delivery experience, ROYAL GROUP supplies steel grating solutions for industrial platforms, walkways, factories, drainage systems, offshore facilities, and infrastructure projects. Send your drawings or specifications for a customized quotation.
1. Industrial Walkways: Hot Dip Galvanized Grating is an ideal flooring material for both warehouse and factory walkways. Its open mesh design prevents water and dirt buildup, provides a safe foothold, and reduces maintenance.
2. Steel Stair Tread Grating: Our grating stair treads are robust and durable, suitable for industrial/commercial buildings. The serrated anti-slip design prevents slipping in wet and high-traffic areas.
3. Work and Maintenance Platforms: Steel Grating provides stable load-bearing capacity for platforms suitable for work platforms on factory equipment. Its open texture allows light, air, and liquids to pass through, facilitating inspection and cleaning.
4. Drainage and Drain Covers: Hot-dip galvanized Metal Grating is ideal for drainage ditches and wastewater systems. Its mesh structure allows rainwater and oil to drip off quickly, preventing water accumulation both inside and outside.
Royal Steel Group manufactures hot-dip galvanized steel Floor Grating for industrial, energy, mining and infrastructure projects worldwide. Clients from Middle Eastern factories to American construction sites rely on our gratings for solid load capacity, long service life and reliable anti-slip properties.
We have local service teams in the US and Guatemala to deliver timely communication and full project coordination for overseas buyers. With eight well-positioned warehouses and a steady supply chain, we shorten lead times and guarantee steady stock, whether clients order standard panels or bulk project supplies.
Packaging
Export Packaging
Steel grating panels are tightly bundled with steel straps. We use steel straps to tightly bind the steel grating panels to ensure stability during transportation and prevent bending or collision.
Labels and Marking
Each bundle is clearly labeled with product specifications, dimensions, steel grade, and project code for easy on-site assembly and warehouse inventory management.
Additional Packaging Options
Our workshop offers additional packaging options: wooden pallets, waterproof membranes, and surface protective films, suitable for overseas shipping or special project requirements.
Delivery
Delivery Time
The standard production cycle is 7-15 working days after order details confirmation. The specific time will be adjusted according to order quantity and customized specifications.
Shipping Methods
We offer various shipping methods, including container shipping, bulk sea freight, land transportation, and dedicated logistics services for large-scale engineering projects.
Shipping Safety
All products are batch-packaged for easy and safe loading and unloading. Customers will receive products that are in perfect condition and ready for immediate installation.
1. What are the main advantages of steel bar grating?
It boasts high load-bearing capacity, excellent corrosion resistance, long service life, and reasonable price, making it the optimal choice for industrial and heavy-duty applications.
2. Does it comply with US or international standards?
Yes. It can be manufactured according to OSHA safety regulations, ANSI/NAAMM specifications, ASTM A36 (steel) standards, and ASTM A123 (galvanized) standards.
3. What are the standard applications?
Widely used in industrial platforms, walkways and trench covers, oil and gas plants, power plants, and workshops.
4. Can sizes and specifications be customized?
Yes. We can customize the load-bearing bar size, spacing, panel size, thickness, and serrated (anti-slip) surface options according to specific project requirements.
5. How long is the service life?
With proper galvanizing, the service life can exceed 20 years under normal outdoor conditions, but its lifespan is greatly affected by climate and exposure conditions.
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