Bar Grating
Bar grating in carbon steel, stainless steel and aluminum, available in welded, swage-locked, press-locked and riveted construction. Standard 19-W-4 and custom bearing bar spacing for walkways, platforms, stair treads and trench covers.
Bar Grating Quick Specs
| Parameter | Range |
|---|---|
| Material | Carbon Steel (ASTM A36) / Stainless Steel (304/316) / Aluminum |
| Bearing Bar Height | 3/4″ – 7″ (19 mm – 178 mm) |
| Bearing Bar Thickness | 1/8″ – 1/2″ (3 mm – 12 mm) |
| Standard Spacing | 19-W-4 (1-3/16″ bearing bar, 4″ cross bar) |
| Cross Bar Type | Round / Twisted Square / Ribbed |
| Panel Size | Up to 3′ × 24′ (custom cut available) |
| Surface Finish | Mill / Hot-Dip Galvanized / Powder Coated |
Bar Grating Specifications
| Bearing Bar Height | Thickness | Spacing Code | Cross Bar Spacing | Weight (psf) | Available Material |
|---|---|---|---|---|---|
| 3/4″ | 3/16″ | 19-W-4 | 4″ | 5.5 | Carbon Steel |
| 1″ | 3/16″ | 19-W-4 | 4″ | 9.9 | Carbon Steel / Aluminum |
| 1-1/4″ | 3/16″ | 19-W-4 | 4″ | 12.4 | Carbon Steel / Aluminum |
| 1-1/2″ | 1/4″ | 19-W-4 | 4″ | 16.7 | Carbon Steel / Stainless Steel |
| 2″ | 3/16″ | 19-W-4 | 4″ | 14.1 | Carbon Steel / Stainless Steel |
| 2-1/2″ | 1/4″ | 19-W-4 | 4″ | 22.5 | Carbon Steel |
| 3″ | 1/4″ | 19-W-4 | 4″ | 26.8 | Carbon Steel |
| 4″ | 1/4″ | 19-W-4 | 4″ | 35.7 | Carbon Steel |
Custom bearing bar sizes, spacing (15-W-4, 11-W-4, 7-W-4) and panel dimensions available. Load and span calculation support provided before production.
Bar Grating Types & Construction
Welded Bar Grating
Bearing bars and cross bars are fused at every intersection using resistance welding. The most common and economical type for industrial platforms and walkways.
Swage-Locked Bar Grating
Cross rods are permanently locked into bearing bars by a swaging press without welding. Provides a clean, smooth appearance and is suitable for architectural and visible applications.
Press-Locked Bar Grating
Bearing bars and cross bars are locked by high pressure. Supports the same loads as welded grating but with a smoother surface; not recommended for rolling loads.
Riveted Bar Grating
Cross bars are riveted to bearing bars, providing higher resistance to buckling under vehicular rolling loads.
Applications
Walkway & Platform
Walkways, operating platforms, catwalk flooring, inspection platforms.
Stair Treads & Ladders
Stair treads, ladder rungs, safety steps.
Trench & Drainage Cover
Trench covers, drainage grates, sump covers.
Security & Fencing
Security screens, fencing infill panels, machine guards, ventilation grilles.
Quality & Supply
Material Traceability — Every steel bar, cross rod and finished panel is batch-recorded from incoming inspection to packing.
In-House Quality Control — Bearing bar height, thickness, spacing and panel squareness are measured on every production batch.
Load & Span Support — Bearing bar selection is confirmed against your load and span requirements before production.
Packing & Loading — Steel-strapped bundles or wooden pallets, seaworthy packing for container loading.
Related Products
FAQ
Bar Grating — FAQ
What does the 19-W-4 spacing mean?
It means bearing bars are spaced 1-3/16″ on center, joined by welded cross bars spaced 4″ on center. This is the most widely specified spacing for general industrial platforms and walkways.
What is the difference between welded and press-locked grating?
Welded grating fuses bars at every intersection and is the most common type. Press-locked grating uses high pressure to lock bars together, producing a smoother surface suitable for architectural applications, but it is not recommended for rolling loads.
Can you produce custom bearing bar sizes and panel dimensions?
Yes. We produce bearing bar heights from 3/4″ to 7″ and custom panel sizes up to 3′ × 24′. Send your load and span requirements and we will confirm the bearing bar selection.
What materials are available?
Carbon steel (ASTM A36), stainless steel (304/316), and aluminum. Hot-dip galvanizing is available for carbon steel for corrosion protection.
What is the typical lead time?
Standard panels ship in 7–15 days. Custom sizes, spacing and surface finishes typically require 15–25 days depending on quantity.
Need a Custom Bar Grating Specification?
Send your material, bearing bar size, spacing, panel dimensions, load and span requirements. We will reply with a factory quotation and lead time within 24 hours.