4# Expanded Metal Grating: Specifications, Uses & Full Guide
ANPING METAL MESH – Professional Expanded Metal Grating Manufacturer
4# expanded metal grating is one of the most popular heavy-duty expanded metal products used for industrial flooring, walkways, platforms, stairs, and drainage covers. It offers exceptional strength, slip resistance, and durability at a lower cost than welded bar grating.
As a trusted metal mesh manufacturing company with 20+ years of production experience, we specialize in manufacturing 4# expanded metal grating in galvanized steel, carbon steel, and stainless steel. This complete guide covers its definition, official specifications, standard sizes, applications, benefits, and installation tips.
What Is 4# Expanded Metal Grating?
4# expanded metal grating is a heavy-duty, raised expanded metal panel designated as #4 pattern in the industrial expanded metal size system. It features a medium-large diamond opening and thick metal strands, making it ideal for load-bearing walking surfaces and industrial platforms.
The “#4” refers to its standard pattern number in the expanded metal size chart, which defines its fixed SWD, LWD, strand width, and thickness dimensions. It is produced as a raised (non-slip) finish for maximum safety and structural strength.
Unlike thin expanded metal sheets, 4# grating is designed to support foot traffic, light equipment, and continuous industrial use.
Official Specifications of 4# Expanded Metal Grating
These are the universal, industry-standard dimensions for 4# expanded metal grating (US & Metric):
| Specification | Standard Value |
|---|---|
| Pattern Number | #4 (4#) |
| SWD (Short Way of Diamond) | 5/8" (16mm) |
| LWD (Long Way of Diamond) | 2" (51mm) |
| Standard Thickness | 2.5mm (16 GA) |
| Strand Width | 3.0mm |
| Finish | Raised (Non-Slip) |
| Standard Sheet Size | 4'×8' (1220×2440mm) |
These dimensions make 4# expanded metal grating the perfect balance of strength, weight, and open area for drainage and ventilation.
Materials Available for 4# Expanded Metal Grating
We produce 4# grating in three high-performance materials to suit any environment:
| Material | Features | Best Applications |
|---|---|---|
| Hot-Dip Galvanized Steel | Affordable, rust-resistant, strong | Outdoor platforms, stairs, drainage |
| Carbon Steel | Ultra-high strength, low cost | Heavy industrial flooring |
| 304/316 Stainless Steel | Corrosion-proof, hygienic | Coastal, food, chemical plants |
Hot-dip galvanized steel is the most popular choice for general industrial and construction use.
Top Applications of 4# Expanded Metal Grating
4# expanded metal grating is widely used across commercial, industrial, and construction projects:
• Industrial Walkways & Platforms
Non-slip surface ensures safe foot traffic in factories and warehouses.
• Stair Treads & Stair Panels
Strong, durable, and slip-resistant for interior and exterior stairs.
• Drainage Covers & Trench Grates
Open diamond design allows water flow while supporting loads.
• Mechanical Equipment Guards
Protects machinery while allowing ventilation and inspection.
• Parking Lot & Garage Flooring
Heavy-duty strength for vehicle and pedestrian use.
• Construction Scaffolding Planks
Lightweight but strong for temporary access platforms.
Key Advantages of 4# Expanded Metal Grating
4# grating outperforms other flooring materials in many ways:
- Non-Slip Raised Surface: Superior safety for wet or oily areas
- High Load Capacity: Supports heavy foot and light equipment traffic
- Excellent Drainage: Open diamond pattern prevents water buildup
- One-Piece Construction: No welds, no weak points, no breakage
- Lightweight vs. Bar Grating: Easier to transport and install
- Cost-Effective: Lower price than welded steel bar grating
- Long Service Life: Resists wear, impact, and corrosion
4# Expanded Metal Grating vs. Bar Grating
Many customers compare these two heavy-duty grating options:
| Feature | 4# Expanded Metal Grating | Welded Bar Grating |
|---|---|---|
| Construction | One-piece expanded metal | Welded steel bars |
| Slip Resistance | Excellent (raised) | Good |
| Weight | Lightweight | Heavy |
| Cost | Lower | Higher |
| Drainage | Excellent | Good |
4# expanded metal grating is the preferred choice for most general industrial applications.
Frequently Asked Questions: 4# Expanded Metal Grating
What does 4# mean in 4# expanded metal grating?
Is 4# expanded metal grating slip-resistant?
What is the standard size of 4# grating sheets?
Can 4# expanded metal grating be used outdoors?
Can I get custom sizes for 4# grating?
Is 4# grating stronger than regular expanded metal?
Why Choose Our 4# Expanded Metal Grating
We are a leading global supplier of industrial-grade expanded metal grating:
1. Strict Standard Specifications
Every sheet matches official 4# pattern dimensions with zero tolerance errors.
2. Premium Materials
Galvanized, carbon steel, 304/316 stainless steel for long service life.
3. Heavy-Duty Production
Made in our certified Anping expanded metal factory with industrial-grade equipment.
4. Factory-Direct Wholesale Pricing
Low expanded metal mesh wholesale price for bulk orders.
5. Global Fast Shipping
Safe packaging and reliable delivery to ports worldwide.
Get a Free Quote for 4# Expanded Metal Grating
4'×8' standard sheets | custom sizes | galvanized/stainless steel | wholesale price | free sample
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