| Welded Bar Grating | Cross bars are welded to load-bearing bars at each intersection, creating a rigid panel. | Common bearing bar depths include approximately 25–100 mm, with thicknesses of about 3–6 mm. Final sizes depend on span and load. | High rigidity, reliable load transfer, good drainage, and a broad range of panel sizes and spacing options. | - Industrial walkways
- Factory platforms
- Stair treads
- Drainage trench covers
- Equipment access areas
| Untreated carbon steel, painted steel, or hot-dip galvanized steel. | Confirm clear span, design load, bearing-bar direction, mesh spacing, panel dimensions, edge banding, and surface finish. |
| Press-Locked Grating | Cross bars are forced into accurately cut slots in the bearing bars and mechanically locked in place. | Commonly produced with flat cross bars and a range of bearing-bar depths and thicknesses selected for the required load. | Clean, uniform appearance and a smooth top surface; suitable where visual consistency is important. | - Architectural floors
- Pedestrian walkways
- Ventilation screens
- Ceiling panels
- Light-duty platforms
| Mill finish, painted, or galvanized, depending on the steel grade and order specification. | Check whether the press-locked profile is approved for the intended load, especially for vehicle traffic or long spans. |
| Riveted Grating | Twisted or round cross rods are mechanically connected to bearing bars using riveted joints. | Often uses serrated bearing bars and twisted square cross rods; dimensions vary with load and span requirements. | Good lateral stability, enhanced slip resistance when serrated, and strong resistance to repeated pedestrian traffic. | - Heavy-duty walkways
- Industrial platforms
- Loading areas
- Bridge and plant access routes
- Locations requiring additional traction
| Carbon steel, painted steel, or hot-dip galvanized steel. | Specify serrated or plain bearing bars, expected traffic, environmental exposure, and the required support spacing. |
| Swage-Locked Grating | Cross rods are inserted through pre-punched bearing bars and mechanically expanded or swaged to lock the assembly. | Common profiles include round or square cross rods combined with plain or serrated bearing bars. | Uniform appearance, good open area, and a relatively smooth surface for architectural or pedestrian installations. | - Walkways
- Platforms
- Stair treads
- Balconies
- Decorative screens
| Mill finish, painted, or galvanized steel. | Verify the locking method, panel rigidity, edge treatment, and load table for the selected bearing-bar dimensions. |
| Serrated Steel Grating | A serrated pattern is formed on the top surface of the bearing bars to increase traction. | Available with welded, press-locked, riveted, or swage-locked construction; common depths and thicknesses depend on span and load. | Improved slip resistance compared with plain-top grating, particularly in wet, oily, or dusty areas. | - Oil and gas facilities
- Water-treatment plants
- Industrial stairs
- Outdoor platforms
- Food and process areas where drainage is needed
| Hot-dip galvanized steel is commonly selected for outdoor or corrosive environments. | Request information about the serration profile, slip-resistance requirements, cleaning needs, and corrosion exposure. |
| Heavy-Duty Steel Grating | Uses deeper and/or thicker bearing bars, closer spacing, and reinforced panel construction to carry higher loads. | Frequently specified with bearing bars deeper than standard pedestrian panels; exact dimensions must be calculated from span and load. | Designed for higher concentrated loads, industrial vehicles, maintenance equipment, or long support spans. | - Roadway and trench covers
- Forklift routes
- Power and utility facilities
- Heavy equipment platforms
- Industrial service areas
| Painted or hot-dip galvanized carbon steel; special alloys may be used for severe environments. | Do not select by appearance alone. Provide wheel loads, uniform loads, impact conditions, support spacing, and deflection limits. |
| Steel Stair Treads | Grating panels are cut and fitted with front nosing, end plates, and holes or clips for stair installation. | Typical tread widths are made to suit the stair design; bearing-bar depth and thickness are selected according to span and occupancy load. | Open construction improves drainage and visibility; serrated nosing or bearing bars can improve foot traction. | - Industrial stairways
- Fire escapes
- Plant access stairs
- Service ladders
- Outdoor platforms
| Painted or hot-dip galvanized steel is commonly used for corrosion protection. | Specify stair width, tread depth, nosing type, bolt-hole position, support angle, rise and run, and applicable building requirements. |
| Galvanized Steel Grating | Steel grating is coated with zinc, commonly by hot-dip galvanizing after fabrication. | Can be manufactured from welded, press-locked, riveted, or swage-locked grating designs. | Provides sacrificial corrosion protection and is suitable for many outdoor and humid service conditions. | - Outdoor walkways
- Wastewater facilities
- Marine-adjacent structures
- Rooftop service platforms
- Drainage and utility areas
| Hot-dip galvanized zinc coating; coating thickness depends on steel thickness and applicable specification. | Check the galvanizing standard, coating appearance, drainage holes, venting requirements, and any post-galvanizing machining. |
| Plain-Top Steel Grating | Uses smooth, non-serrated bearing bars in a welded or mechanically locked grating assembly. | Available in various bearing-bar depths, thicknesses, and spacing combinations for pedestrian or industrial service. | Easy to fabricate and clean, but it generally provides less traction than serrated grating in wet or oily conditions. | - Dry indoor platforms
- Equipment rooms
- Ventilation floors
- Maintenance walkways
- Architectural installations
| Mill finish, painted, or galvanized steel. | Use only where the slip-resistance level is suitable. Consider serrated grating for wet, oily, inclined, or outdoor surfaces. |
| Close-Mesh Steel Grating | Uses smaller openings or closer cross-bar spacing than standard open grating. | Opening size is selected to control the passage of tools, small objects, debris, or foot openings. | Improves protection against dropped objects while retaining drainage and ventilation benefits. | - Elevated work platforms
- Walkways above occupied areas
- Maintenance decks
- Food and processing facilities
- Areas requiring small-object retention
| Painted or galvanized carbon steel. | Confirm the clear opening, drainage capacity, cleaning method, allowable load, and whether toe boards or kick plates are required. |