In today's fast-developing industrial and infrastructure sectors, selecting the right material is critical for safety, durability, and cost-effectiveness. 19W4 steel grating is one of the most trusted products among engineers, architects, and facility managers, frequently used in various industrial applications.
But what does “19W4” mean, and why is it so popular?
This guide explains the specification, benefits, and practical applications of 19W4 steel grating — addressing common concerns buyers have when choosing industrial grating. As a professional steel grating manufacturer with strong export capabilities, Hebei Hengchen is proud to deliver high-quality 19W4 gratings trusted by clients around the world.
What Is 19W4 Steel Grating?
Steel grating is a grid structure made by welding or pressure-locking bearing bars and cross bars at regular intervals. It's commonly used in platforms, walkways, stair treads, and trench covers.
The 19W4 model refers to a specific grating configuration that meets NAAMM MBG 531 or YB/T4001.1-2007 standards. Here's what each part of "19W4" stands for:
19: Bearing bars spaced at 19/16 inches (about 30mm), ideal for preventing small objects from falling and ensuring pedestrian safety.
W: Indicates welded construction — where bars are joined using resistance welding for strong and stable joints.
4: Cross bars spaced at 4 inches (about 100mm), balancing strength and material efficiency.
Typical Specifications
Hengchen's 19W4 steel gratings are available with the following parameters:
Bearing bar size: Width 30–40mm, thickness 3–5mm (e.g. 32mm × 4.8mm), customizable based on load requirements.
Materials: Carbon steel (Q235 or Q345), stainless steel (304 or 316), or galvanized steel for different environments.
Surface treatment: Hot-dip galvanized (ASTM A123 or GB/T 13912), painted, or untreated.
Standard size: 1m × 6m or 3ft × 20ft, with cutting available to match your project.
Why Choose Hebei Hengchen?
Located in Anping, Hebei — China's key hub for steel grating — Hebei Hengchen Metal Products Co., Ltd. has years of experience in manufacturing and exporting industrial steel gratings.
We use modern production lines, advanced welding technology, and strict quality systems to ensure every 19W4 grating meets international standards. Our products are widely used in North America, Europe, Southeast Asia, and other regions.
Our Competitive Strengths:
1. Advanced Production Equipment
We operate several fully automatic grating production lines with high output and precise cutting, delivering strong and accurate grating panels for various applications.
2. Rich Export Experience
Hengchen understands global standards such as NAAMM and BS 4592. We provide one-stop solutions — from product design to international shipping.
3. Strict Quality Control
Each batch is tested for raw material quality, welding strength, and coating thickness. Our production is ISO 9001 certified.
4. Customization Options
From serrated surfaces for anti-slip performance to special shapes or coatings, we support custom orders to meet complex project needs.
5. Fast Delivery & Global Logistics
With high production capacity and efficient logistics networks, we ensure short lead times and on-time delivery worldwide
Key Advantages of 19W4 Steel Grating
Wondering why 19W4 is the preferred choice? Here’s what makes it stand out:
1. High Strength, Lightweight
With 30mm bar spacing and 100mm cross bars, 19W4 offers strong load-bearing performance while keeping weight low — ideal for platforms and heavy traffic zones. According to NAAMM load tables, 19W4 gratings (with 1-1/4" × 3/16" bars) can handle 100–200 psf (4.8–9.6 kN/m²) or 1000–2000 lbs (4.4–8.9 kN) concentrated loads.
2. Enhanced Safety
The close spacing prevents tools and small objects from falling, ensuring workplace safety. Serrated surface options improve grip in oily or wet conditions — compliant with OSHA and GB 4053.3-2009 safety standards.
3. Corrosion Resistance
Hot-dip galvanized coatings (≥70 microns) and stainless steel materials ensure durability in harsh settings such as chemical plants, coastal areas, and wastewater treatment facilities.
4. Wide Range of Applications
Industrial Platforms: Ideal for refineries, power plants, and factories.
Stair Treads: Strong, non-slip surfaces for industrial stairs.
Trench Covers: Used in parking lots and roads, allowing efficient drainage.
Marine Projects: Stainless steel grating resists seawater corrosion.
5. Cost-Effective
Compared to denser options like 15W4, 19W4 reduces material use while maintaining strength — offering better value. Its welded structure also requires less maintenance over time.
Frequently Asked Questions
1.Is 19W4 suitable for my project?
Yes, and we’re here to help. Hengchen’s engineers can advise you based on your load, environment, and safety needs. For example, 19W4 is ideal for pedestrian traffic, but we may recommend thicker bars for heavy equipment areas.
2.Can I request custom designs?
Absolutely. We offer tailored sizes, coatings (galvanized, painted, serrated), and cutting to match your layout or equipment footprint.
3.How fast can you deliver?
Standard orders can be shipped within 7–15 days, depending on customization and destination. We support global delivery through established freight networks.
Project Case Studies
Chemical Industry: Hengchen supplied thousands of square meters of galvanized 19W4 grating for a chemical plant in Shandong. The dense mesh and zinc coating ensured safety and corrosion resistance.
Municipal Works: In a drainage upgrade in Jiangsu, our grating was used as trench covers — helping with efficient drainage and road safety.
Overseas Projects: For a Middle East offshore platform, Hengchen provided stainless steel 19W4 gratings — praised for their durability and fast delivery.
Choose Hengchen for Long-Term Project Success
As a trusted leader in the steel grating industry, Hebei Hengchen offers professional solutions backed by advanced production and attentive service.
Whether you need high-strength industrial platforms, trench covers, or custom stair treads — Hengchen has you covered.
Contact us today to request a quote or get expert support on your next project!
