ASTM 123 30X25 Stairs Metal Building Galvanized Floor Grating

1. Product Overview

Hot dipped galvanized steel grating is used where load bearing support, drainage opening, and safe walking access are required in one component. This product is suitable for stair treads, work platforms, catwalks, transportation servicing areas, and metal building access flooring.

The featured 30x25 configuration is designed for structural walkway use. Its open-grid structure allows water, dust, and debris to pass through while maintaining a practical walking surface for industrial and building applications.

2. Technical Solution

The grating is produced by welding flat bearing bars with cross bars or round bars at defined spacing. In actual use, load performance depends mainly on bearing bar size, opening size, support span, and surface treatment.

Hot dipped galvanized surface treatment is used to improve corrosion resistance for outdoor and industrial service conditions. The product can also be supplied in black or painted finish when galvanizing is not the selected route.

The page also lists plain bar, serrated bar, and I shape bar options. Serrated type is more suitable where higher slip resistance is needed, especially for stairs and wet access areas.

3. Specifications

4. Application

• This material is suitable for stair treads, structural walkways, work platforms, service areas, and vehicle access steps.
• It can be used in metal buildings, industrial plants, access floors, drainage areas, and fabricated steel structures where an open-grid walking surface is required.
• For projects that need drainage and walking safety together, steel grating is more suitable than closed plate flooring.

5. Processing

• The grating can be cut and fabricated according to the required panel size and support layout.
• It is suitable for welding into stair treads, walkway panels, trench covers, and platform sections.
• For actual project use, the bearing bar direction should follow the support span. Opening size and bar type should be selected according to the required load and anti-slip condition.

6. Advantages

• The welded grid structure provides good strength with relatively low self weight.
• The open-grid design supports drainage, ventilation, and easier cleaning in industrial areas.
• Hot dipped galvanized finish improves corrosion resistance for outdoor and wet service environments.
• Multiple bearing bar sizes and opening options allow the grating to be matched to different spans and access requirements.
• Plain, serrated, and I shape bar types support different walkway and stair conditions.

7. How to Choose

• Choose the bearing bar size according to support span and service load rather than panel size alone.
• Choose serrated bar when the grating will be used on stairs or wet walkways.
• Choose hot dipped galvanized finish when the installation area is outdoors or exposed to water and industrial atmosphere.
• Choose the opening size according to drainage requirement, foot traffic condition, and debris control requirement.

8. FAQ

Q1. Is this grating suitable for stairs
Yes. The product is suitable for stair treads, especially when serrated bar is selected for better slip resistance.

Q2. What surface treatment is available
The listed surface treatments are hot dipped galvanized, black, and painted.

Q3. What is the featured size on this page
The featured size is 30x25.

Q4. Can the grating be used for walkways and platforms
Yes. It is suitable for work platforms, catwalks, transportation servicing areas, and structural walkways.

Q5. What materials are available
The listed material options are low carbon steel and stainless steel.