Hot Dipped 2mm Galvanized Steel Grating Drainage Channel 700mm

1. Product Overview

Hot dipped galvanized steel grating is used where open drainage, load-bearing support, and anti-slip walking surfaces are required in one component. It is suitable for drainage channels, stair treads, platform flooring, trench covers, and industrial access areas where water discharge and surface grip need to be considered together.

This page is centered on a 30×30mm grating configuration with minimum width 824mm and length 5800mm. The product is built for fabricated steel applications rather than plain sheet processing, and the hot dip galvanized surface is intended for corrosion protection in outdoor or industrial service conditions.

2. Technical Solution

The product uses a load-bearing flat bar structure combined with twisted cross bars and hot dip galvanized surface treatment. In practical use, final performance depends on four linked factors: bearing bar size, grating span, load direction, and galvanizing condition.

The source also lists common twisted steel specifications of 6mm, 8mm, and 10mm. That matters because cross bar size affects panel stability and grid integrity during handling and installation. For load selection, the page provides multiple bearing bar size options together with section modulus and moment of inertia values, which are relevant when matching the grating to platform span and service load.

For example, larger bar sizes such as 2 × 3/16 and 2-1/4 × 3/16 provide higher section properties than smaller sizes, so they are more suitable where span or loading is higher. In real projects, grating selection should be based on actual support spacing and required load class rather than panel size alone.

3. Specifications

4. Application

• This material is suitable for drainage channels, trench covers, stair steps, platforms, walkways, and open industrial flooring.
• It can be used in buildings, workshops, plant access areas, utility covers, and fabricated steel access systems where drainage and walking safety are both required.
• Because the product can be welded into different shapes according to drawings, it is also suitable for customized fabricated openings and irregular installation areas.

5. Processing

• The grating can be fabricated according to drawings and specifications for different installation locations.
• It is suitable for welding and shape customization for open areas, trench covers, stair treads, and platform sections.
• When selecting the final panel, span direction and support layout should be confirmed before choosing the bearing bar size. For drainage applications, the opening layout should also be matched to debris size and water flow requirement.

6. Advantages

• The open-grid structure supports drainage while still providing a load-bearing walking surface.
• The hot dip galvanized finish improves corrosion resistance for outdoor and industrial environments.
• The 30×30mm grid configuration is suitable for general drainage and access applications.
• Multiple bearing bar size options with listed section properties make it easier to match the grating to different spans and load requirements.
• The product can be fabricated into different shapes according to project drawings, which is useful for non-standard installation areas.

7. How to Choose

• Choose the bearing bar size according to support span and service load rather than panel size alone.
• Choose smaller bar sizes for lighter pedestrian or access use where span is short.
• Choose larger bar sizes such as 2 × 3/16 or above when the load is higher or the support spacing is larger.
• Choose hot dipped galvanized finish when the grating will be used outdoors, in wet areas, or in industrial environments with higher corrosion exposure.
• For drainage channels, confirm opening size, support frame, and installation direction before finalizing the grating specification.

8. FAQ

Q1. Is this product suitable for drainage channels
Yes. The open-grid structure is suitable for drainage channels and trench cover applications where water discharge is required.

Q2. Can this grating be used for stair treads
Yes. The page specifically references stair step and steel grating applications, so it is suitable for stair tread fabrication when the correct bar size is selected.

Q3. What is the standard grid size on this page
The listed grating size is 30×30mm.

Q4. Can the panel be customized by drawing
Yes. The source states that the steel grating can be welded into different shapes according to drawings and specifications.

Q5. How should the bearing bar size be selected
It should be selected according to actual span and load requirement. The listed weight, section modulus, and moment of inertia values are the key reference points for that selection.