Drainage Gratings: Advantages, Specifications & Applications

   Drainage gratings are welded steel structures composed of load-bearing flat bars and cross bars. They feature high load capacity, good drainage performance and anti-slip property, widely used for trench drainage, sewer, floor drain and industrial platforms. We supply both hot-dip galvanized and stainless steel types with custom sizes available.

Technical Specifications

Materials

    Load-Bearing Flat Steel: We supply Q235A carbon steel for cost-effective strength, or stainless steel (304/316) for superior corrosion resistance.

    Cross Bar: Available in Q235A or 304 stainless steel. Types include round, twisted square (5×5mm to 8×8mm), square and hexagonal steel for better stability.

    Flat Steel: Thickness ranges from 3–10mm (e.g. 25×3mm up to 100×10mm). The width can be adjusted to meet different load requirements.

    Grid: Center-to-center spacing of flat steel: 30/40/60mm; cross bar spacing: 100/50mm.

Overall: Standard sizes in stock, custom sizes are acceptable. Standard panel width is 995mm, reserved with a 5mm installation gap.

Advantages

✅ Excellent drainage & ventilation

✅ High strength and heavy load bearing

✅ Anti-corrosion, rust-resistant and long service life

✅ Optional serrated anti-slip surface

✅ Easy to install and maintain

✅ Customizable for different projects

Applications

   Trench drain, sewer system, floor drain, municipal road, factory platform, walkway, wastewater treatment plant, food processing workshop.

Q1: What materials do you offer for drainage gratings?

A: We have Q235 carbon steel (hot-dip galvanized) and 304 / 316 stainless steel. Galvanized ones are cost-effective; stainless steel works well for corrosive environments such as sewage, chemical and food workshops.

Q2: Can you make serrated anti-slip drainage gratings?

A: Yes. Serrated anti-slip flat bars are available, which greatly improve safety for wet walkways and trench covers.

Q3: Is custom size acceptable?

A: Sure. We can produce according to your drawings, required load capacity and trench width.

Q4: What is your standard panel width?

A: Our standard width is 995 mm, with a 5 mm gap reserved for installation.

Q5: What is the load capacity of the grating?

A: The load depends on the flat bar thickness, height and spacing. We can recommend the suitable structure once you tell us your load requirement (pedestrian / light vehicle / heavy truck).

Q6: How long is the galvanized coating service life?

A: Our hot-dip galvanized layer meets standard requirements. It can last many years under normal outdoor conditions.

Q7: Can you provide samples?

A: Yes, small samples are available for quality checking. The buyer bears the freight cost.

Q8: What are your main applications?

A: Trench drain, sewer, floor drain, municipal projects, factory walkways, wastewater treatment plants and food factories.

Contact Us for More Information:

Email: junhe01@steelwiremeshfactory.com; admin@steelwiremeshfactory.com

WhatsApp: +86 17331466463; +86 17331468011