Forklift-rated grating
For warehouse aisles, docks and factory floors with regular forklift traffic — specified against wheel load, contact area and span.
Engineered Around Your Load & Span
Heavy Duty Steel Grating
Heavy duty steel grating uses deeper, thicker bearing bars and tighter spacing to carry forklifts, trucks and heavy industrial equipment. It serves loading docks, driveways, heavy trench covers and industrial yards — and every heavy-duty specification is confirmed against span, wheel load and support conditions before quotation, because load capacity is engineered, not assumed.
- For wheel loads, forklifts and heavy equipment
- Bearing bars up to 100 × 10 mm
- Span, wheel load and support conditions confirmed before quotation
- Manufactured per NAAMM MBG 532 or project specifications
Wheel-load rated Engineered to span MBG 532 reference Load banding available
What is heavy duty steel grating?
Heavy duty steel grating is bar grating designed for vehicular and heavy equipment loads — loading docks, driveways, heavy trench covers, airport and port pavements and industrial yards. It uses larger bearing bars, tighter spacing and often thicker cross bars than standard walkway grating.
Because wheel loads concentrate force on small contact areas, heavy-duty selection must consider wheel load, tire contact area, span, support conditions, traffic frequency and safety factors together. We confirm all of these before quoting — a grating named "heavy duty" without these inputs is only a label, not a rating.
Light, medium and heavy duty are market categories, not absolute standards. Actual capacity depends on bearing bar height, thickness and spacing, material strength, span, support conditions and load type together — which is why we never quote vehicle-rated grating without those inputs.
Gallery
Heavy Duty Steel Grating in Detail
Specifications
Specification Options
| Item | Options | Notes |
|---|---|---|
| Material | Q355 / ASTM A572 Grade 50 / S355JR as specified; Q235 for moderate duty | Grades are not automatically interchangeable; MTC must match the purchase specification |
| Bearing bar size | 40 × 5 mm to 100 × 10 mm | Sized by load calculation, not by label |
| Bearing bar spacing | 30 / 40 mm | Tighter spacing distributes wheel loads |
| Cross bar | Twisted square bar at 50 / 100 mm | Heavier cross bars for vehicle panels |
| Surface type | Plain / serrated | Serrated where vehicle areas are wet or oily |
| Finish | Hot-dip galvanized after fabrication | Applicable ASTM A123/A123M, ISO 1461 or customer requirements and inspection evidence agreed per order |
| Panel limits | Up to 6100 × 1000/1200 mm; 70–100 kg per piece handling limit | Larger areas split into numbered panels |
| Load confirmation | Wheel load, contact area, span and support conditions required | Confirmed before quotation — capacity is engineered, not assumed |
Variants
Recommended Types
Truck-rated trench & driveway grating
Heavy bearing bars with load banding for yard crossings and trench covers under truck traffic.
Heavy-duty serrated grating
Adds slip resistance where vehicle areas are also wet, oily or exposed to weather.
Compound heavy-duty grating
Grating topped with checkered plate where small-object containment or a solid running surface is needed; weight and drainage trade-offs apply.
Applications
Where Heavy Duty Steel Grating Is Used
Industrial Flooring
Mezzanine and factory flooring that combines load capacity with light, air and sprinkler penetration.
View application
Trench Covers & Drainage
Drainage covers that keep water moving and traffic safe — from pedestrian channels to truck crossings.
View application
Industrial Platform Grating
Open-grid flooring for chemical plants, equipment platforms and mezzanines — strength, drainage and ventilation in one panel.
View application
Marine Dock Grating
Material and surface decisions for chloride-rich dock, pier and gangway access exposed to salt spray and persistent wetting.
View applicationFabrication & QC
Fabrication & Quality Notes
- Heavy panels are welded with full fusion at each intersection; load banding is welded to panel edges that carry wheel loads.
- Bearing bars up to 100 × 10 mm are cut, drilled and coped to drawing before welding.
- Load data can be referenced to NAAMM MBG 532 or project specifications, confirmed for your span and support conditions.
- Each panel is checked for bar size, spacing, weld quality, flatness and dimensions; coating thickness is verified after galvanizing.
Packaging
Packaging & Delivery
- Reinforced strapping and blocking to prevent deformation of heavy panels in transit.
- Panels tagged with project numbers matched to installation zones and drawings.
- Steel frame packing for long or high-value heavy panels; container loads planned around panel weight and destination limits.
FAQ
Heavy Duty Steel Grating FAQs
Can your grating carry trucks or forklifts?
Yes, when specified for it. Tell us the vehicle type, wheel load, tire contact area, span and traffic frequency — our team selects bearing bars and confirms capacity before quotation.
What standard do you follow for heavy duty grating?
Heavy-duty products can be manufactured and tested per NAAMM MBG 532 or project specifications, with load data confirmed for your span and support conditions.
What information do you need to quote heavy duty grating?
Load type and magnitude (wheel load if vehicular), support span and direction, panel size, quantity and any project standard. Drawings speed up the process.
What is the largest bearing bar you can weld?
Bearing bars up to 100 × 10 mm. Panels beyond the 1000–1200 mm width or the 70–100 kg handling limit are split and numbered for installation.
Can heavy duty grating be galvanized?
Yes — panels are fully fabricated first, then hot-dip galvanized. The applicable ASTM A123/A123M, ISO 1461 or project requirements and reporting scope are agreed for the order, and deep-section bars are reviewed for distortion risk.
What is the lead time for heavy duty grating?
Heavy-duty production typically runs 15–25 days depending on tonnage and fabrication. Load confirmation happens before quotation, so production is not delayed by re-design.
Do you provide load tables or calculations?
We confirm capacity against your actual span, wheel load and support conditions and can reference NAAMM MBG 532 load data. Tell us the application and we will recommend a specification with its calculation basis.
Send Your Drawings, Get a Confirmed Specification
We aim to reply within one business day during published business hours.
