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Customized
JunHe
Hot-dip galvanized steel grating is a standard flooring solution for industrial platforms, walkways and drainage covers, widely used in manufacturing, logistics and municipal infrastructure projects. It is constructed by load-bearing flat bars and twisted cross bars welded firmly at each intersection. Serrated anti-slip surfaces are available to improve friction and prevent slipping under wet or oily working conditions.
Hot-dip galvanized coating provides reliable long-term corrosion protection for outdoor and industrial environments. Its open mesh structure brings good ventilation, fast drainage and lighter weight compared with solid steel plates. JUNHE supplies steel grating in a full range of specifications, which can be customized to match different span and load requirements for commercial and industrial applications.
Specifications
Bearing Flat Bar
Material: Q235 carbon steel / 304 / 316 stainless steel
Thickness: 3mm, 4mm, 5mm, 6mm, 8mm, 10mm
Flat bar height: 20mm, 25mm, 30mm, 32mm, 40mm, 50mm, 60mm, 75mm, 100mm
Cross Bar
Material: Q235 carbon steel or stainless steel
Type: twisted square bar, round bar, hexagonal bar
Size: 5×5mm, 6×6mm, 8×8mm
Bar Spacing
Center distance of bearing bars: 30mm, 40mm, 60mm
Cross bar pitch: 50mm, 100mm
Surface Treatment
Hot-dip galvanized / Electro-galvanized / Paint / No treatment
Style
Plain smooth type / Serrated anti-slip type
The table below lists standard load-bearing flat bar dimensions and corresponding cross bar specifications:
Specification 303/30/100 represents a standard configuration with 30 × 3mm load-bearing bars spaced at 30mm intervals and cross bars at 100mm spacing, delivering 3.5kN/m² uniform load capacity and 3.85kN concentrated load capacity. Heavier specifications with thicker flat bars and closer spacing are available for forklift traffic and heavy equipment platforms.
Load-Bearing Flat Steel (mm) | Cross Bar (mm) | Mesh Size (mm) | Uniform Load (kN/m²) | Concentrated Load (kN) |
|---|---|---|---|---|
20 × 5 | 5 × 5 | 30 × 100 | - | - |
25 × 5 | 6 × 6 | 40 × 100 | - | - |
30 × 3 | 6 × 6 | 60 × 100 | - | - |
30 × 5 | 8 × 8 | 30 × 100 | 3.5 | 3.85 |
40 × 5 | 8 × 8 | 40 × 100 | - | - |
50 × 5 | 8 × 8 | 60 × 100 | - | - |
FAQ
Under normal outdoor atmospheric conditions, hot-dip galvanized steel grating can maintain structural integrity for over 20 years, based on the 85μm average zinc coating thickness. Service life varies depending on environmental factors such as humidity, chemical exposure, and abrasion levels. Chemical plant and coastal installations may experience shorter service intervals due to accelerated corrosion rates.
Dimension customization is available for length, width, mesh spacing, and load-bearing bar thickness. Load ratings can be adjusted by modifying flat bar dimensions and spacing to match specific project requirements. Customers may submit design drawings or specify load parameters for custom production.
Steel grating panels can be installed using bolt fastening or welding methods. Bolted installation allows for removable access panels, while welded installation provides permanent fixed flooring. Installation involves aligning panels with supporting structures and securing at specified intervals. Both methods require standard installation tools and can be completed by on-site construction teams.
Galvanized steel grating requires periodic visual inspections to check for coating damage, loose fasteners, and structural deformation. No regular surface treatment is required under normal operating conditions. Localized coating damage can be repaired with zinc-rich paint. Replacement of individual panels is recommended if structural damage or significant corrosion is detected during inspection.
