Steel bar grating, known for its high strength and robust structure, is manufactured from carbon steel, aluminum, or stainless steel. Depending on the production method, steel grating can be categorized into four types: welded bar grating, press-locked grating, swage-locked grating, and riveted grating. Based on surface design, it is available in both smooth and serrated options. With a wide range of styles and sizes, steel grating serves versatile applications in everyday life, including stair treads, walkways, platforms, flooring, trench covers, wheeled equipment, security screens, and heavy-duty constructions.
| Pitch of Bearing bar | Cross-bar Pitch | Specification of bearing bar(widthxthickness) | |||||
| 20×3 | 25×3 | 32×3 | 40×3 | 20×5 | 25×5 | ||
| 30 | 100 | G203/30/100 | G253/30/100 | G323/30/100 | G403/30/100 | G205/30/100 | G255/30/100 |
| 50 | G203/30/50 | G253/30/50 | G323/30/50 | G403/30/50 | G205/30/50 | G255/30/50 | |
| 40 | 100 | G203/40/100 | G253/40/100 | G323/40/100 | G403/40/100 | G205/40/100 | G255/40/100 |
| 50 | G203/40/50 | G253/40/50 | G323/40/50 | G403/40/50 | G205/40/50 | G255/40/50 | |
| 60 | 50 | G253/60/50 | G253/60/50 | G403/60/50 | G205/60/50 | G255/60/50 | |
| Pitch of Bearing bar | Cross-bar Pitch | Specification of bearing bar(widthxthickness) | |||||
| 32×5 | 40×5 | 45×5 | 50×5 | 55×5 | 60×5 | ||
| 30 | 100 | G325/30/100 | G405/30/100 | G455/30/100 | G505/30/100 | G555/30/100 | G605/30/100 |
| 50 | G325/30/50 | G405/30/50 | G455/30/50 | G505/30/50 | G555/30/50 | G605/30/50 | |
| 40 | 100 | G325/40/100 | G405/40/100 | G455/40/100 | G505/40/100 | G555/40/100 | G605/40/100 |
| 50 | G325/40/50 | G405/40/50 | G455/40/50 | G505/40/50 | G555/40/50 | G605/40/50 | |
| 60 | 50 | G325/60/50 | G405/60/50 | G455/60/50 | G505/60/50 | G555/60/50 | G605/60/50 |
Surface Treatment
We provide four finishes for anti-corrosion treatment of carbon steel bar grating:
Black / Bare Steel: No finish, life is very short, but the price is the cheapest.
Painted Coat: The anti-rust effect is general and can be any color.
Electro-galvanized: A small amount of zinc coating, easy to cause slight corrosion in humid environment.
Hot-dip galvanized: The most commonly used method to provide the best anti-rust effect, strictly in accordance with ASTM A123 or GB/T 13912-2002.


