Steel Bar Grating for Industrial Platforms, Walkways, Floors, and Drainage

ZhongPu Wire Mesh Co., Ltd. supplies steel grating made from carbon steel bearing flat bars and crossbars, including twisted square bars, round bars, or plain square bars. The bars are evenly spaced and permanently joined to form square or rectangular openings. Standard panel sizes include 1000 × 1000 mm, 1000 × 2000 mm, and 1000 × 3000 mm, with bearing bar spacing of 30–40 mm and crossbar spacing of 50–100 mm. Steel grating is widely used for industrial platforms, walkways, stair treads, trench covers, and drainage systems.

Classification

Welded Steel Grating

Welded Steel Grating Panels for Industrial Platforms, Walkways, Floors, and Drainage Applications

• Structure: Bearing flat bars welded to crossbars under high pressure
• Advantages: High strength, rigid structure, long service life
• Material: Carbon steel (ASTM A36 / Q235), optional stainless steel 304/316
• Manufacturing Process: Pressure-welded construction with bearing bars and transverse bars
• Standard Panel Size: 1000 × 1000 mm, 1000 × 2000 mm, 1000 × 3000 mm
• Bearing Bar Spacing: 30 mm or 40 mm (centre to centre)
• Cross Bar Spacing: 50 mm or 100 mm
• Bearing Bar Size: Width 25–50 mm × thickness 3–6 mm
• Grating Thickness (Depth): 25 mm, 30 mm, 40 mm, 50 mm
• Surface Finish: Hot-dipped galvanized, painted, or untreated (black steel)
• Load Capacity: Light, medium, and heavy-duty grades available
• Mesh Opening Type: Square or rectangular openings for drainage and slip resistance
• Edge Treatment: Trimmed edges or binding bars on all sides
• Applications: Industrial platforms, walkways, stair treads, trench covers, and drainage channels

Pressure-Locked Steel Bar Grating

Pressure-Locked Steel Bar Grating Panels for Industrial Flooring Drainage and Platforms

• Structure: Crossbars pressure-inserted into pre-slotted bearing bars, then locked
• Bearing Bar Spacing: 30 mm or 40 mm
• Surface: Flat or serrated
• Advantages: Uniform load distribution, improved slip resistance, clean appearance
• Applications: Stair treads, anti-slip walkways, architectural platforms
• Material Grade: Carbon steel (Q235/S235), stainless steel 304 or 316, or aluminum alloy options
• Manufacturing Method: Pressure-locked construction with cross bars pressed into bearing bars under high pressure
• Cross Bar Spacing: 50 mm or 100 mm
• Bearing Bar Size: Width 20–50 mm, thickness 3–6 mm depending on load rating
• Panel Thickness: Overall thickness typically 25–50 mm based on bearing bar height
• Panel Dimensions: Standard widths up to 1000 mm, lengths up to 6000 mm, custom sizes available
• Surface Finish: Mill finish, hot-dip galvanized (ISO 1461), pickled, or polished for stainless steel
• Load Capacity: Designed for pedestrian, vehicle, and industrial loads per EN and ASTM standards
• Edge Treatment: Welded or pressure-locked flat bar banding on all four sides
• Application Areas: Industrial platforms, stair treads, drainage covers, walkways, and plant flooring

Interlocking Steel Grating

Interlocking Steel Grating Panels with Precision-Fitted Bearing and Cross Bars for Heavy-Duty Flooring Drainage

• Material: Carbon steel (Q235/S235), stainless steel 304/316, or aluminum alloy
• Grating Structure: Interlocking or press-fit construction without welding for clean appearance
• Bearing Bar Type: Flat bearing bars or serrated bearing bars for anti-slip performance
• Bearing Bar Spacing: Spacing 25 mm, 30 mm, or 40 mm center to center
• Cross Bar Spacing: Spacing 50 mm or 100 mm, customizable on request
• Bearing Bar Dimensions: Width 20–50 mm, thickness 3–6 mm depending on load class
• Panel Thickness: Height typically 20–50 mm based on bearing bar depth
• Panel Size Range: Panel widths up to 1000 mm, lengths up to 6000 mm
• Surface Treatment: Hot-dip galvanized, mill finish, pickled, or stainless steel brushed finish
• Load Rating: Suitable for pedestrian, trolley, and industrial equipment loads
• Edge Banding: Flat bar banded edges for strength and dimensional stability
• Applications: Industrial platforms, walkways, drainage covers, mezzanines, and plant floors

Plain Flat Bar Steel Grating

Plain Flat Bar Steel Grating Panels with Uniform Bearing and Cross Bars for Industrial Flooring

• Grating Type: Plain flat bar steel grating with smooth bearing bar surface
• Manufacturing Process: Welded or pressure-locked construction for structural stability
• Bearing Bar Size: Width 20–50 mm, thickness 3–6 mm depending on load requirements
• Bearing Bar Spacing: Spacing 30 mm or 40 mm center to center
• Cross Bar Size: Round or twisted square bars, typically 6–8 mm diameter
• Cross Bar Spacing: Spacing 50 mm or 100 mm, customizable
• Panel Thickness: Height generally 20–50 mm based on bearing bar depth
• Panel Dimensions: Widths up to 1000 mm, lengths up to 6000 mm
• Surface Treatment: Hot-dip galvanized, mill finish, painted, or stainless steel finish
• Load Capacity: Designed for pedestrian, light vehicle, and industrial load classes
• Advantages: Easy cleaning, low maintenance
• Applications: Industrial platforms, drainage covers, service walkways

Serrated Flat Bar Steel Grating

Serrated Flat Bar Steel Grating with Anti Slip Bearing Bars for Industrial Platforms and Walkways

• Surface: Serrated anti-slip edge
• Bearing Bar Type: Serrated flat steel bars with anti-slip tooth profile
• Bearing Bar Thickness: 3.0 mm – 6.0 mm standard options
• Bearing Bar Height: 20 mm – 100 mm load-dependent range
• Cross Bar Type: Twisted square bar or round bar
• Cross Bar Spacing: 38 mm, 50 mm, 76 mm typical centers
• Panel Width: 600 mm – 1000 mm standard fabrication range
• Panel Length: 1000 mm – 6000 mm cut-to-size options
• Material Grade: Carbon steel Q235 / ASTM A36 / S275JR
• Surface Treatment: Hot-dip galvanized, untreated, or painted
• Load Capacity: Light duty to heavy duty industrial loading
• Edge Treatment: Plain banded or welded edge bar
• Manufacturing Method: Pressure-locked or welded construction

I-Type Steel Grating

I Type Steel Grating Panels with I Bar Bearing Bars for Industrial Flooring Systems

• Bearing Bar Shape: I-section profile
• Bearing Bar Height: 25 mm – 100 mm standard range
• Bearing Bar Thickness: 3.0 mm – 6.0 mm
• Bearing Bar Spacing: 30 mm, 40 mm, 50 mm centers
• Cross Bar Type: Twisted square bar or round bar
• Cross Bar Spacing: 38 mm, 50 mm, 76 mm
• Panel Width: 600 mm – 1000 mm
• Panel Length: 1000 mm – 6000 mm custom cut
• Material Grade: Carbon steel Q235 / ASTM A36 / S275JR
• Surface Finish: Hot-dip galvanized, painted, or untreated
• Manufacturing Method: Welded steel grating construction
• Load Capacity: Medium to heavy industrial duty applications
• Edge Treatment: Plain banded or welded edge bar
• Applications: Heavy-duty platforms, equipment supports, power plants

Supply of FRP and Steel Grating for Industrial Platforms, Gangways, Floors, and Drainage

Acid-Resistant FRP (Plastic) Grating

• Material: FRP / Plastic, Acid Resistant
• Panel Sizes: 1000 × 1150 mm, 2000 × 970 mm
• Mesh Pitch: 33 × 33 mm
• Bearing Bar Spacing (Centre to Centre): 40 mm
• Bearing Bar Depth: 38 mm
• Applications: Chemical plants, corrosive environments, industrial platforms

Steel Grating for Operating Gangways

• Material: ASTM A36 Carbon Steel
• Panel Sizes & Thickness: 1250 × 1000 mm × 30 mm,850 × 1000 mm × 30 mm
• Mesh Pitch: 33 × 33 mm
• Load Bearing Bar Size: 30 × 5 mm
• Transverse Bar: Ø5 mm support bar
• Binding Bar Size: 30 × 5 mm
• Surface Protection: Chemical cleaning to remove rust and scale
• Painting: Bituminous paint by dipping, dry film thickness 60 microns
• Applications: Operating gangways, access walkways

Steel Grating for Operating Floors

• Material: ASTM A36 Carbon Steel
• Panel Sizes & Thickness: 1300 × 1000 mm × 40 mm, 700 × 1000 mm × 40 mm
• Mesh Pitch: 33 × 33 mm
• Load Bearing Bar Size: 40 × 5 mm
• Transverse Bar: Ø5 mm support bar
• Binding Bar Size: 40 × 5 mm
• Surface Protection: Chemical cleaning to remove rust and scale
• Painting: Bituminous paint by dipping, dry film thickness 60 microns
• Applications: Operating floors, industrial platforms

Steel Grating for Open Channels

• Material: ASTM A36 Carbon Steel
• Panel Sizes & Thickness: 440 × 1000 mm × 50 mm,770 × 1000 mm × 50 mm,930 × 1000 mm × 50 mm,820 × 1000 mm (thickness 50 mm typical)
• Mesh Pitch: 33 × 33 mm
• Load Bearing Bar Size: 50 × 5 mm
• Transverse Bar: Ø5 mm across full panel width
• Binding Bar Size: 50 × 5 mm across full panel width
• Surface Protection: Chemical cleaning to remove rust and scale
• Painting: Bituminous paint by dipping, dry film thickness 100 microns
• Applications: Open channels, drainage systems, trench covers

Hot-Dipped Galvanized Heavy-Duty Trench Bar Grating

It is also known as galvanized trench bar grating, B125 trench grate, ADA-compliant bar grating, galvanized steel trench cover, or drainage bar grating. Manufactured from carbon steel bearing and transverse bars, it provides a rigid, slip-resistant surface for pedestrian and light vehicle traffic. Rated B125 to BS EN 124, it withstands a 12.5-ton test load and is suitable for parking areas, sidewalks, and service lanes. The grating is ADA compliant, with bearing bar openings ≤ 13 mm (1/2 inch) and bars oriented perpendicular to the direction of travel for safe access.

Standard Size

• Span Width: 350 mm
• Grate Length: 1,000 mm

Surface Treatment – Hot-Dip Galvanized

The grating is hot-dip galvanized, equivalent to G90 zinc coating, providing a minimum coating weight of 0.90 oz/ft² (total both sides) in accordance with ASTM A653. Coating quality and thickness are verified in accordance with ASTM A90, and galvanizing practices conform to ASTM A123 for iron and steel products.

Typical Applications

• Trench covers and drainage channels
• Sidewalks and pedestrian zones
• Parking areas and service roads
• Industrial facilities and commercial buildings