Drain Grating
Drain grating in galvanized steel, stainless steel 304/316 and ductile iron, available in slotted, mesh and bearing bar construction. Load classes from A15 to F900 per EN 1433, custom widths and lengths for trench drains, channel drains and floor drainage systems.
Drain Grating Quick Specs
| Parameter | Range |
|---|---|
| Material | Hot-Dip Galvanized Steel / Stainless Steel 304/316 / Ductile Iron |
| Load Class (EN 1433) | A15 / B125 / C250 / D400 / E600 / F900 |
| Bearing Bar Height | 20 – 100 mm |
| Bearing Bar Thickness | 3 – 10 mm |
| Bearing Bar Pitch | 12.5 / 15 / 20 / 25 / 30 / 35 / 40 mm |
| Standard Width | 100 / 150 / 200 / 250 / 300 mm |
| Standard Length | 500 / 1000 mm (custom available) |
| Surface Finish | Hot-Dip Galvanized / Mill / Pickled |
| Hinge & Locking | Optional hinge, locking bolt or quick-release |
Drain Grating Specifications
| Load Class | Bearing Bar Size | Bearing Bar Pitch | Cross Bar Pitch | Open Area | Typical Application |
|---|---|---|---|---|---|
| A15 | 20×3 mm | 12.5 mm | 50 mm | ~55% | Pedestrian areas, residential |
| B125 | 25×5 mm | 15 mm | 50 mm | ~52% | Sidewalks, small parking lots |
| C250 | 30×5 mm | 20 mm | 50 mm | ~48% | Roadside gutters, commercial |
| D400 | 40×5 mm | 25 mm | 50 mm | ~45% | Roads, industrial floors |
| E600 | 50×5 mm | 30 mm | 50 mm | ~42% | Ports, container yards |
| F900 | 60×5 mm | 35 mm | 50 mm | ~38% | Airports, heavy-duty areas |
Load classes A15 to F900 conform to EN 1433. Bearing bar sizes and pitch can be customised for specific trench width, load and open-area requirements. Hinged and locked options available for easy cleaning and anti-theft.
Drain Grating Types & Construction
Slotted Drain Grating
Parallel bearing bars with narrow slots. High open area for fast water intake, suitable for trench drains and channel drains in municipal and commercial projects.
Mesh Drain Grating
Grid pattern with rectangular or square openings. Prevents larger debris from entering the drainage system, commonly used for floor drains and planter areas.
Hinged & Locked Drain Grating
Grate connected to the frame with hinges and secured by a locking bolt or quick-release mechanism. Allows easy inspection and cleaning, while deterring unauthorised access.
Heavy-Duty Bearing Bar Drain Grating
Thicker bearing bars and higher load class for roads, ports and industrial floors where vehicle loads are present.
Applications
Municipal & Road Drainage
Urban roads, bridges, tunnels, highway toll stations, stormwater inlets.
Industrial & Warehouse
Factory floors, warehouse drainage, chemical plants, food processing areas.
Commercial & Public Areas
Shopping plazas, parking lots, garages, railway stations, pedestrian areas.
Architectural & Landscape
Fountains, pools, planter drains, balcony drainage, decorative channel covers.
Quality & Supply
Load Class Compliance — Grates are produced and tested to EN 1433 / DIN 19580 load class requirements. Test certificates available on request.
Material Traceability — Every steel bar, cross rod and finished grate is batch-recorded from incoming inspection to packing.
In-House Quality Control — Bearing bar height, thickness, slot width and panel squareness are measured on every production batch.
Packing & Loading — Steel-strapped bundles or wooden pallets, seaworthy packing for container loading.
Related Products
FAQ
Drain Grating — FAQ
What load class do I need for my drain grating?
Load class depends on the traffic above the drain. A15 for pedestrian and bicycle areas, B125 for sidewalks and small parking lots, C250 for roadside gutters, D400 for roads and industrial floors, E600 for ports and container yards, F900 for airports and heavy-duty areas.
What is the difference between slotted and mesh drain grating?
Slotted grating has parallel bearing bars with narrow slots, offering high open area for fast water intake. Mesh grating has a grid pattern that blocks larger debris from entering the drainage system. Slotted is preferred for high-flow trench drains; mesh for floor drains and debris-heavy areas.
Can you produce custom widths and lengths?
Yes. Standard widths include 100 / 150 / 200 / 250 / 300 mm, and standard lengths are 500 / 1000 mm. Custom dimensions can be produced against your trench drawing.
Do you offer hinged and locked grates?
Yes. Hinged grates with locking bolts or quick-release mechanisms are available for easy inspection and cleaning, and to prevent unauthorised access.
What materials are available?
Hot-dip galvanized steel, stainless steel 304/316, and ductile iron. Hot-dip galvanizing is the standard choice for municipal and outdoor drainage; stainless steel is used for food processing and corrosive environments.
Need a Custom Bar Grating Specification?Need a Custom Drain Grating Specification?
Send your trench width, length, load class, material and surface finish requirements. We will reply with a factory quotation and lead time within 24 hours.