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Trench Cover Grating

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Trench Cover Grating: Durable and Efficient Drainage Solutions

Steel grating trench covers, also known as steel drainage covers or cable trench covers, are fabricated by welding flat bearing bars and twisted cross bars at fixed intervals. After edging and framing, the product serves as a secure, anti-slip, and high-drainage cover for various trench systems. Widely used in municipal infrastructure, industrial plants, underground facilities, ports, and other high-load, high-traffic areas, this cover provides excellent corrosion resistance and long-term durability thanks to hot-dip galvanizing.

Specifications of Trench Cover Grating


Load-Bearing Flat Bars: Standard dimensions include 25×3 mm, 30×5 mm, 40×5 mm, etc.

Cross Bars: Typically 5×5 mm or 6×6 mm twisted square steel to form a rigid grid.

Edging Frame: Angle steel or flat steel welded on all sides for enhanced structural integrity.

Optional Accessories: Hinge mechanisms, lifting handles, anti-theft bolts or locking systems for security and convenience.

Manufactured through resistance pressure welding or manual arc welding, our trench covers deliver high structural strength, precise dimensions, and long service life.


We offer various specifications for trench covers and well covers to meet different needs. Below are some common model dimensions:

ModelA (Clear Opening)B (Cover Width)C (Frame Width)D (Frame Width)E (Grating)
CSG/L380 × 680440 × 745460 × 77025G253/30/100
CSG/H380 × 680460 × 755480 × 78040G405/30/100
CSG/XH380 × 680480 × 765500 × 79050G505/30/100


Galvanized Sidewalk Trench Grating Dimensions:

DescriptionA (mm)B (mm)
GPTG-1700850
GPTG-28501000

Key Advantages of Trench Cover Grating

Superior Corrosion Resistance:
Hot-dip galvanized surface prevents rust and ensures long-term outdoor durability, with a service life of over 20 years even in harsh environments.

Efficient Drainage:
High open area ratio (over 80%) ensures rapid drainage, effectively preventing water accumulation and flooding.

Anti-Slip & Safety Design:
Optional serrated flat bars enhance surface grip, reducing slip risks in wet or oily environments.

Modular & Easy Installation:
Prefabricated modular design supports fast installation, simple maintenance, and easy replacement.

Full Customization Available:
Dimensions, materials, bar spacing, and surface treatments can be tailored to meet project-specific requirements.

Types of Trench Cover Grating

1. Heavy Duty Steel Plate Grating Trench Cover

Material: Carbon Steel / Hot-Dip Galvanized

Surface Treatment: Hot-dip galvanizing, anti-rust oil, or industrial painting

Key Features:

High load-bearing capacity

Corrosion and acid/alkali resistance

Slip-resistant surface

Easy to install and maintain

Excellent drainage and ventilation performance

Applications:
Ideal for industrial facilities, urban drainage systems, ports, airports, and high-traffic car parks requiring heavy load support.

Trench Cover Grating

2. 304 Stainless Steel Wedge Wire Linear Drain Cover

Material: SUS 304 Stainless Steel

Structure: Composed of wedge wire grate and matching trough/channel

Grate Specifications:

Wedge wire: 3x4.2 mm

Spacing: 3.2 mm

Support wire: 3x6 mm, 25 mm spacing

Frame: 22.8x5 mm

Width options: 63 mm / 75 mm / 98 mm / 100 mm

Length options: 100 mm to 1000 mm (custom sizes available)

Trough Specifications:

Plate thickness: 1.2 mm

Width: 70 mm or 100 mm

Length: 300 mm / 500 mm / 800 mm / 1000 mm

Outlet: 40 mm horizontal drain with deodorization trap

Frame: Integrated flange for improved waterproofing

Key Features:

Modern and hygienic design

Anti-odor drainage

Customizable to client drawings

Applications:
Widely used in bathrooms, kitchens, public showers, commercial laundry rooms, and hotels requiring sanitary drainage.

Trench Cover Grating

3. Serrated Metal Slot Drain Grating Cover

Material: Carbon Steel / Galvanized Steel

Surface Treatment: Serrated top for anti-slip performance

Key Features:

Enhanced safety with serrated surface

Self-cleaning, anti-slip, and cost-effective

Welded construction for strength and stability

Applications:
Ideal for walkways, production floors, machine shops, and areas where extra grip is required under wet or oily conditions.

Trench Cover Grating

4. Stainless Steel / Galvanized Floor Drain Grate

Material: Stainless Steel Sheet / Galvanized Steel Plate

Structure Options: Serrated, smooth-surface, or press-locked type

Key Features:

Durable and pressure-resistant

Excellent drainage capacity

Versatile for both industrial and commercial use

Applications:
Suitable for flooring, walkways, stair treads, maintenance platforms, equipment rooms, and high foot traffic zones.

Trench Cover Grating

5. Outdoor Bar Grating Drain Cover

Material: Stainless Steel / Carbon Steel

Surface Treatment:
Hot-dip galvanizing, cold galvanizing, painting, anti-rust oil, or untreated

Key Features:

Weather-resistant and anti-slip

Supports light and air ventilation

Explosion-proof and oxidation-resistant properties

Applications:
Used in municipal stormwater management, landscaping, pedestrian walkways, and public plaza drainage.

Trench Cover Grating

6. Cold Rolled Steel Drain Grating for Indoor Use

Material: Cold Rolled Steel

Key Features:

Lightweight with high strength

Cost-effective and easy to install

Clean and uniform finish

Applications:
Suitable for indoor drainage in commercial buildings, factory channels, service tunnels, and utility zones.

Trench Cover Grating


Technical Support & Custom Services

We provide end-to-end technical support including selection consulting, drawing optimization, sample development, batch production, and installation guidance. Products are subject to rigorous mechanical testing, corrosion resistance evaluation, and dimensional control. Third-party inspection reports and international certifications (ISO, CE) can be provided upon request.

For design assistance, project quotes, or customization inquiries, please feel free to contact our engineering team. We are committed to delivering high-performance trench cover solutions for your infrastructure needs.


Package and Ship

For secure transportation, we offer the following packaging options:

Strap Packing: Ideal for small-sized press-locked grating.

Pallet Packing: Suitable for large orders and container loading.

Screw Rod Fixation: Secures the grating in place for safe transit.

Our products are carefully inspected and packaged to meet international shipping standards.

steel grating

steel grating

steel grating

steel grating

steel grating

Why Choose Hebei Hengchen Technology Co., Ltd.?

Hebei Hengchen Technology Co., Ltd. has over 10 years of experience in the production of high-quality steel grating. We are dedicated to delivering top-tier products tailored to meet the specific needs of our global clients.

Why Choose Hebei Hengchen Technology Co., Ltd.?

Quality Assurance

Over a decade of industry expertise and innovation in manufacturing steel grating.

Fast Delivery

Daily Production Of 8,000 Square Meters, Fast Delivery From Powerful Manufacturers

Experience & Expertise

We Use Advanced Technology And Premium Materials To Ensure Consistent Product Quality.

Customization

We Offer Tailor-Made Solutions Based On Your Unique Project Requirements, Including Customized Sizes And Finishes.

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