Steel bar grating is a high-strength open-grid flooring system made of welded flat bars and cross rods. Hot-dip galvanized for corrosion protection, it is widely used in industrial walkways, platforms, trench covers, and stair treads. Available in plain, serrated, and ADA-compliant types, it offers excellent load-bearing capacity, slip resistance, and long service life in harsh environments.
Steel bar grating is a heavy-duty open-grid flooring solution made by welding load-bearing flat bars and cross rods into a rigid panel. It is commonly finished with hot-dip galvanizing, forming a protective zinc layer that ensures long-term corrosion resistance even in harsh environments. This makes it ideal for industrial platforms, walkways, trench covers, stair treads, ramps, and catwalks.
Types of Steel Bar Grating
Plain Surface: Flat bearing bars for standard usage with easy cleaning.
Serrated Surface: Anti-slip design for improved safety in wet or greasy conditions.
ADA-Compliant (Close Mesh): Reduced bar spacing to accommodate wheelchairs and high-heel pedestrian traffic.
Product Features
High Load Capacity: Designed to handle heavy vehicle and foot traffic.
Superior Corrosion Resistance: Hot-dip galvanized surface protects against rust and wear.
Slip-Resistant Options: Serrated surfaces increase grip for safety in hazardous conditions.
Efficient Drainage: Open-grid design allows water, snow, and debris to pass through easily.
Customizable Sizes: Available in a wide range of dimensions and bar spacing options.
Quick Installation: Panels can be welded or secured with mounting clips.
| Item | Specification |
| Material | Carbon Steel Q235 / ASTM A36 |
| Bearing Bar Size | 20×3 mm to 50×5 mm |
| Bar Pitch | 30 mm, 40 mm, 60 mm |
| Cross Rod Pitch | 50 mm, 100 mm |
| Surface Type | Plain / Serrated / Close Mesh (ADA) |
| Surface Treatment | Hot-Dip Galvanized / Painted / Untreated |
| Standard Panel Size | ≤ 1000 mm width, ≤ 6000 mm length |
Galvanized steel grating is used across many industries and infrastructures:
Industrial Platforms and Mezzanines
Trench and Cable Covers
Walkways and Catwalks
Stair Treads and Landings
Drainage Covers in Parking Lots and Sidewalks
Shipyards, Ports, and Offshore Platforms
Municipal Engineering and Construction
Welding: Recommended for permanent installations, usually with corner welds (≥20mm long, ≥3mm thick).
Mounting Clips: Ideal for temporary or removable panels, using M8 bolts with top and bottom clamps
Production Process Videos
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