Rectangle Aluminum Grating – Technical Parameters (Engineering Reference)

All values are typical engineering references; final dimensions and load ratings depend on project requirements.

1. Product Overview

Aluminum bar grating is a load-bearing metal grating system manufactured from high-strength aluminum alloys, designed to provide an optimal balance between structural performance, corrosion resistance, and reduced weight.

Compared with carbon steel grating, aluminum grating offers superior corrosion resistance in atmospheric, coastal, and mildly aggressive environments, while maintaining sufficient load capacity for pedestrian and light industrial applications. Its lightweight nature significantly reduces structural dead load and simplifies transportation, handling, and installation.

Aluminum grating is widely used in industrial platforms, access walkways, drainage covers, architectural flooring, and marine-related applications where long-term durability and low maintenance are required.

2.Technical Parameters

 

1. Bearing Bar & Cross Bar Specifications

 

Parameter	Typical Range	Notes
Bearing Bar Shape	Rectangular / I-bar	I-bar reduces weight
Bearing Bar Height	20 / 25 / 30 / 40 / 50 mm	Selected by load & span
Bearing Bar Thickness	3 / 4 / 5 mm	Structural requirement
Bearing Bar Spacing	30 / 40 / 60 mm	30 mm common for walkways
Cross Bar Type	Round / Rectangular	Lateral stability
Cross Bar Size	5×5 mm / 6×6 mm / 8×8 mm	Engineering reference
Cross Bar Spacing	50 / 100 mm	Panel stability
Connection Method	Press-locked / Riveted	No welding required
Edge Banding	Aluminum flat bar	Optional reinforcement

2. Material & Mechanical Properties

 

Parameter	Typical Value	Notes
Aluminum Alloy	6061-T6 / 6063-T5	Project dependent
Tensile Strength	≥ 160 MPa (6063-T5)	Reference value
Yield Strength	≥ 110 MPa	Engineering reference
Density	~2.7 g/cm³	Lightweight advantage
Corrosion Resistance	Excellent	Suitable for indoor/outdoor
Surface Finish	Mill / Anodized (10–25 μm) / Serrated	Anti-slip option
Open Area	65% – 80%	Ventilation & drainage
Slip Resistance	R10 – R12	Serrated surface
Fire Resistance	Non-combustible	Aluminum property
Electrical Conductivity	Conductive	Grounding possible

 

3. Panel Dimensions, Load & Installation

 

Parameter	Typical Range / Option	Notes
Panel Width	≤ 1000 mm	Transport & handling
Panel Length	≤ 6000 mm	Project dependent
Thickness Tolerance	±2 mm	Manufacturing standard
Design Load	1.5 – 7.5 kN/m²	Pedestrian to light industrial
Maximum Span	600 – 1200 mm	Depends on bar size
Deflection Limit	L/200 – L/250	Common international practice
Fixing Method	Clips / Bolted	Clips recommended
Clip Material	Aluminum / Stainless steel	Match environment
Clips per Panel	2 – 4 pcs	Based on panel size
Maintenance	Easy removal	No permanent fixing
Fabrication	CNC / Water-jet cutting	Precision fabrication
Notching & Banding	Column/pipe cut-outs / flat bar	Project-based
CAD / Shop Drawings	Available	Engineering support
OEM / ODM Service	Supported	Factory direct

 

4.Optional Engineering Reference – Typical Application Matching

Application	Bearing Bar	Spacing
Walkways	30 × 3 mm	30 mm
Platforms	40 × 4 mm	30 – 40 mm
Rooftop Access	25 × 3 mm	30 mm
Offshore Areas	40 × 5 mm	30 mm
Architectural Flooring	25 × 3 mm	40 mm

 

Design Limitations (Important)

• Not recommended for heavy vehicle traffic or forklift lanes.
• Not suitable for extreme high-temperature environments.
• Not spark-proof for explosion-risk zones.

 

Product Code Example

TA323/30/100FU—Series 30 Aluminum Rectangular Bar Grating, Flat/Plain Load Bars 32×3 at 30mm Centres, Cross bars at 100mm Spacing, Mill Finish.

 

5. Performance Characteristics & Engineering Advantages

Aluminum bar grating provides a favorable strength-to-weight ratio compared with carbon steel grating, making it particularly suitable for structures where dead load reduction is critical.

With a density of approximately one-third that of steel, aluminum grating reduces the overall stru

Aluminum alloys such as 6061-T6 and 6063-T5 also exhibit natural resistance to atmospheric corrosion. In coastal or mildly aggressive industrial environments, aluminum grating can achieve long service life without the need for galvanizing or heavy protective coatings.

For wet, oily, or inclined walking surfaces, serrated bearing bars are recommended to enhance slip r

 

6. Surface Finishes & Environmental Adaptability

Aluminum grating can be supplied with multiple surface finishes depending on environmental exposure and aesthetic requirements.

Mill finish aluminum grating is commonly used in indoor industrial facilities or controlled environments where corrosion risk is minimal. For outdoor or architectural applications, anodized aluminum grating provides improved corrosion resistance and a uniform appearance while maintaining dimensional stability.

Powder-coated aluminum grating is often selected for public or architectural projects where color coordination and visual integration are required. Coating thickness and color can be customized according to project specifications.

Serrated bearing bar surfaces are available for applications requiring enhanced traction, particularly in rain-exposed walkways, wastewater facilities, and marine environments.

 

7. Typical Applications & Use Scenarios

Aluminum bar grating is widely used in pedestrian and light industrial applications where corrosion resistance, weight reduction, and low maintenance are prioritized.

Common applications include industrial walkways, access platforms, trench covers, stair treads, rooftop maintenance paths, and drainage grating. In marine and coastal installations, aluminum grating is oft

For architectural and commercial projects, aluminum grating provides a clean, modern appearance while maintaining adequat

 

8. Fabrication & Customization Capability

Aluminum bar grating can be fabricated according to project drawings, including custom panel sizes, irregular shapes, column cut-outs, and edge banding.

Bearing bar size, spacing, and surface finish can be selected to match load requirements, span conditions, and environmental exposure. Engineering support, including load calculations and shop drawings, is available upon request to ensure proper product selection and compliance with applicable standards.

 

9. Engineering Notes & Design Limitations

Aluminum grating is primarily intended for pedestrian and light-duty industrial applications. It is not recommended for heavy vehicle traffic, forklift lanes, or areas subject to high impact loads.

Final grating selection should be based on confirmed span conditions, design loads, and installation methods. Load ratings and deflection limits must be verified through project-specific calculations and approved drawings.

 

In summary, Aluminum Bar Grating excels in pedestrian/light industrial applications like walkways, platforms, rooftops, and marine areas. Its superior corrosion resistance, reduced dead load, easy installation, and low-maintenance design provide durable, cost-effective performance in coastal, architectural, and mildly aggressive environments worldwide.