I Bar Grating

Additional information

Material Options	Mild Steel (Carbon Steel)
Bearing Bar Size	25×5×3mm,30×5×3mm,32×5×3mm,35×5×3mm,38×5×3mm,40×5×3mm,44×5×3mm,50×5×3mm,60×7×4mm,65×7×4mm(Custom sizes available)
Cross Bar Size	6mm,8mm,10mm
Bearing Bar Spacing	30mm,40mm,50mm.
Cross Bar Spacing	40mm,50mm,100mm.
Surface Treatment	Hot-Dip Galvanized (HDG), Powder Coated, Painted, or Untreated (Mill Finish).
Surface Profile	I-Bar Steel
Panel Dimensions	Standard Sizes: 1000 ×1000mm or 1000 ×2000mm or 500 × 800mm(Custom sizes available).
Loading Capacity	High Strength, Low Weight.
Applications	Ideal for high-load platforms, walkways, and drainage covers requiring maximum strength and efficiency.

Please email us with your required specifications based on the above parameters. We will provide customized quotes and manufacturing according to your requirements.

E-mail： zhen@gratingpro.com

Lightweight I Bar Steel Grating Manufacturer & Supplier

High-efficiency I bar steel grating engineered for lightweight structural performance and cost optimization. Featuring an I-shaped bearing bar design, it reduces material usage while maintaining strong load capacity, making it ideal for industrial platforms and walkways.

Factory Direct: Lower cost through optimized material usage
Lightweight Design: Reduced weight with high strength performance
Global Export: Reliable supply for industrial projects

What Is I Bar Grating?

I bar grating is a type of steel grating that uses I-shaped bearing bars instead of traditional flat bars. This unique structure significantly reduces weight while maintaining sufficient strength for most industrial applications.

Compared with standard Steel Bar Grating, I bar grating provides a more economical solution when lower weight and cost savings are required.

I Bar Grating Structure and Design

I-shaped bearing bars for weight reduction
Cross bars for structural stability
Optimized load distribution
Reduced steel consumption
High strength-to-weight ratio

Materials and Surface Treatment

Carbon Steel (Q235 / ASTM A36)
Hot-dip galvanized (ASTM A123)
Painted or untreated surface

For enhanced corrosion resistance, explore our
Galvanized Steel Grating.

I Bar Grating Specifications

Item	Range
Bearing Bar Height	20 mm – 50 mm
Bearing Bar Thickness	3 mm – 5 mm
Bearing Bar Spacing	30 mm, 40 mm
Cross Bar Spacing	50 mm, 100 mm
Panel Width	Up to 1000 mm

Load Capacity Reference

Type	Span	Load
I Bar 30×3	1000 mm	~250 kg/m²
I Bar 32×5	1000 mm	~500 kg/m²

Applications of I Bar Grating

Industrial walkways
Platforms with weight restrictions
Drainage trench covers
Steel structure flooring
Light-duty industrial areas

Advantages of I Bar Grating

Lightweight structure
Lower material cost
Easy installation
Efficient load performance
Reduced structural load

Comparison with Other Grating Types

Welded Steel Grating – higher load capacity
Press Locked Grating – better appearance
Serrated Steel Grating – anti-slip performance

Custom I Bar Grating Fabrication

We provide custom fabrication services including panel sizing, edge banding, and project-specific engineering solutions.

For custom solutions, visit
Custom Steel Grating.

Quality Inspection

Dimensional accuracy inspection
Material quality verification
Galvanizing thickness testing
Third-party inspection support (SGS / BV)

Request a Technical Quote

Looking for a lightweight and cost-effective grating solution? Contact our team today.

Get a Quote

Q: What is the smallest hole you can produce?
A: Typical micro perforation starts at 0.3 mm; for smaller holes we recommend chemical etching — contact us with your exact spec.

Q: Do you offer custom patterns and prototypes?
A: Yes. We do prototypes with no MOQ. Send drawings or sample references to info@perfsheet.com.

Q: Can you cut panels to irregular shapes?
A: Yes. Provide a CAD file or drawing; laser or waterjet processes are suitable for complex outlines while preserving micro hole integrity.

Q: How do you handle edge finishing?
A: We can supply straight-cut edges, folded profiles, or hemmed edges. Hemming improves safety and aesthetics for visible edges.

Q: Can you produce curved panels?
A: Some materials can be roll-formed or pressed into curved shapes. Send radius and panel size; we’ll advise on manufacturability.

Q: Can you provide material certificates?
A: Yes — material certificates are included with shipments and we support third-party testing.

Micro perforated metal sheet manufacturing video

After perforation, especially for plates with very dense hole patterns, the perforated metal sheets will experience significant deformation. We perform flattening treatment after completing all perforation processes. Below is the video of flattening perforated metal sheets:

After the leveling process, our perforated metal sheets can be precisely laser-cut into any custom shape as required. Below is a production video demonstrating the laser-cutting process: