# Heavy Duty Bar Grating

![Heavy duty steel bar grating cover for industrial loading](https://qymetaltech.com/wp-content/uploads/2026/05/steel-grating-trench-covers-4.webp)









Steel Grating

Heavy duty bar grating is reviewed when span, wheel load, forklift traffic, vehicle loading or maintenance equipment is beyond normal pedestrian access. Buyers should send load data, wheel contact, support span, frame details and drawings before quotation.

RFQ quick details





**Load condition**Wheel load, forklift traffic, vehicle load or maintenance equipment should be clearly stated.



**Bearing bar size**Deeper or thicker bearing bars are reviewed according to clear span and load.



**Support condition**Frame, ledge, clear opening and bearing direction decide the practical panel layout.



**Open area**Bar spacing balances load, drainage, cleaning and walking or rolling contact.



**Finish**Hot-dip galvanized finish is common for outdoor or drainage heavy duty grating.

 



[Send RFQ](https://qymetaltech.com/heavy-duty-bar-grating/#rfq)[Chat on WhatsApp](https://wa.me/8615152256390)



 **Email** sales@qymetaltech.com **Files** PDF, DWG, DXF, sketches and product photos are welcome. 

 

 

 

 

 





Product overview

## Heavy Duty Bar Grating selection for project RFQs

QY Metal Tech supports international project buyers with drawing-based RFQ review, custom fabrication discussion, surface finish selection and export packing notes from Wuxi, Jiangsu, China.

 



### Heavy Duty Bar Grating specification path

 

| Load condition | Wheel load, forklift traffic, vehicle load or maintenance equipment should be clearly stated. |
|---|---|
| Bearing bar size | Deeper or thicker bearing bars are reviewed according to clear span and load. |
| Support condition | Frame, ledge, clear opening and bearing direction decide the practical panel layout. |
| Open area | Bar spacing balances load, drainage, cleaning and walking or rolling contact. |
| Finish | Hot-dip galvanized finish is common for outdoor or drainage heavy duty grating. |
| Accessories | Frames, anchors, lifting holes and removable panel marks can follow drawings. |

 

 





Standards reference

## Standards and finish references can be reviewed by project requirement

- Steel grating can be reviewed according to drawings and standards such as YB/T 4001.1, ANSI/NAAMM MBG 531 or BS 4592 when required.
- Hot-dip galvanizing can be specified according to ISO 1461 or ASTM A123/A123M when a defined zinc coating reference is needed.
- Platform, stair and access projects may refer to ISO 14122 or local safety requirements for walking surfaces and guardrail interfaces.
- Final specification should follow project drawings, load notes, local codes and buyer approval documents.

 



Specification examples

## Common Heavy Duty Bar Grating model expressions

 

| Heavy duty G405 | 40 x 5 mm bearing bar option reviewed for higher load or longer span. |
|---|---|
| Vehicle trench cover | Heavy bearing bar and frame route for vehicle or forklift traffic. |
| Close bearing pitch | Bearing bar pitch adjusted by load, wheel contact and support condition. |
| Framed heavy panel | Frame, anchor and lifting details reviewed from drawings. |

Use these examples as RFQ shorthand, then confirm final dimensions, load, material, finish and drawings before production.

 

 

 

 



Applications

## Heavy Duty Bar Grating applications and project references

These references help buyers connect heavy duty bar grating specifications with real site conditions, fabrication details, packing requirements and installation expectations.





![Heavy duty bar grating trench cover application](https://qymetaltech.com/wp-content/uploads/qymt-img-20261017/qymt-steel-grating-trench-covers-01.webp)

### Vehicle trench covers

Heavy duty grating for drainage channels, service trenches and traffic zones.







![Heavy duty bar grating industrial floor application](https://qymetaltech.com/wp-content/uploads/qymt-img-20261017/qymt-platform-steel-grating-21.webp)

### Industrial floors

Higher load grating for plant access, maintenance platforms and equipment areas.







![Factory inspection for heavy duty bar grating](https://qymetaltech.com/wp-content/uploads/qymt-img-20261017/qymt-steel-grating-details-06.webp)

### Factory load review

Dimensions, welding, frame details and finish can be checked before packing.







 

 

 





RFQ checklist

## Send heavy duty bar grating details for a faster quote

For faster quotation support, include dimensions, material, finish, application, quantity and destination for heavy duty bar grating. Drawings, sketches, replacement photos or old specifications are welcome when the product must match an existing project.



[Send RFQ](https://qymetaltech.com/contact/#rfq)[View Resources](https://qymetaltech.com/resources/)

 

 

### Heavy Duty Bar Grating RFQ checklist

- Load type, wheel contact, support span and bearing direction
- Bearing bar size, spacing and panel size
- Frame, anchors, lifting details and removable layout
- Finish, quantity, drawings, destination and packing

 

 

 

 





FAQ

## Heavy Duty Bar Grating buyer questions

 

When do I need heavy duty grating?

When the grating carries vehicles, forklifts, trolleys or equipment, spans a long distance or covers high-load trenches. Normal pedestrian grating is not designed for wheel loads.



What load information do you need?

Traffic type, wheel or axle load, wheel contact area, clear span, support layout and any safety factor your engineer requires.



Which bearing bars are used for heavy duty grating?

Deeper or thicker bars such as 40 × 5, 50 × 5 or 60 × 5 mm, often at a closer bearing pitch for wheel contact. The final size follows the load and span check.



Can heavy duty grating be supplied with frames?

Yes. Angle frames, embedded frames, anchors and lifting holes can be made to your drawings.



Is a pedestrian load table enough for heavy duty grating?

No. Pedestrian tables cover uniform loads; wheel and point loads need a separate check using the actual load, contact area and span.



How are heavy panels handled for export?

Heavy panels are bundled with lifting points, panel marks and a loading plan so they can be unloaded and installed safely.

 

 



Related paths

### Continue from this product



[Steel Grating Load Table](https://qymetaltech.com/resources/steel-grating-load-table/)[Steel Grating Drain Cover](https://qymetaltech.com/steel-grating-drain-cover/)[Steel Bar Grating](https://qymetaltech.com/steel-bar-grating/)[Galvanized Steel Grating](https://qymetaltech.com/galvanized-steel-grating/)

 



### Need a practical heavy duty bar grating quotation?

Send drawings, specifications, quantity, destination and packing notes. We will review the details before replying with quotation support.



[Send Project RFQ](https://qymetaltech.com/heavy-duty-bar-grating/#rfq)

 

 

 

 

 



Quick span guide

## Recommended maximum span by model (Q235, /30/100)

Span at which a 4 kN/m² uniform load gives 4 mm deflection, calculated with the YB/T 4001.1—2019 Annex C method.



| Model | Bearing bar | Recommended max. span |
|---|---|---|
| G255/30/100 | 25 × 5 mm | **1260 mm** |
| G325/30/100 | 32 × 5 mm | **1520 mm** |
| G405/30/100 | 40 × 5 mm | **1790 mm** |
| G505/30/100 | 50 × 5 mm | **2120 mm** |
| G605/30/100 | 60 × 5 mm | **2430 mm** |



[Full load table with uniform and line loads →](https://qymetaltech.com/resources/steel-grating-load-table/#q235-load-table)









Selection path

## Specification, data and project references





### 1 · Check technical data

- [Steel grating load table](https://qymetaltech.com/resources/steel-grating-load-table/)
- [Load, span and deflection guide](https://qymetaltech.com/steel-grating-load-table-support-span-rfq/)
- [Steel grating weight calculator and chart](https://qymetaltech.com/resources/steel-grating-weight-chart/)





### 2 · See project references

- [Industrial park drain covers](https://qymetaltech.com/projects/#drainage-covers)
- [Factory walkway project](https://qymetaltech.com/projects/#industrial-access)
- [All project references](https://qymetaltech.com/projects/)





### 3 · Datasheet and quotation

- [Send drawings for a quotation](https://qymetaltech.com/heavy-duty-bar-grating/#rfq)













### Order terms

- MOQ: 50 pcs (panels, rolls or pieces)
- Samples available; sample and freight costs paid by the buyer
- Payment: 30% deposit, 70% before shipment
- Lead time: usually 30 days ex-works after deposit and drawing approval
- Quotation in 24–48 hours on working days
- Drawings: PDF, DWG, DXF, JPG, PNG, WebP up to 12 MB











RFQ form

## Request Heavy Duty Bar Grating quotation

Upload drawings if available. Include product size, material, finish, quantity, destination and application notes for a faster technical response.





**Drawings welcome**PDF, DWG, DXF, photos or replacement notes are useful.



**Fast technical response**Clear specifications and quantity help us review faster.



**Export packing support**Labels, bundle marks and packing groups can follow your project.

 

 



 

 

 











Heavy duty grating reference

## Heavy duty bar grating details for higher load conditions

 

Heavy duty grating quotation should start from load condition, clear span, bearing bar size, support method and whether wheel or point loads are involved.

 





### RFQ parameters

 

| Load type | State pedestrian, equipment, trolley, forklift, vehicle or other loading condition. |
|---|---|
| Clear span | Support span is essential for selecting bearing bar depth and spacing. |
| Wheel or point load | Wheel size, contact area and axle load should be provided when applicable. |
| Support and fixing | Frames, bearing seats, clips or welded fixing should be clarified. |
| Finish and packing | Galvanizing, panel marks and heavy bundle handling should be planned early. |

 





![Heavy duty steel bar grating panel](https://qymetaltech.com/wp-content/uploads/qymt-img-20261017/qymt-steel-grating-details-04.webp)

### Heavy access floors

Steel grating panels for stronger support and industrial service.







![Heavy duty grating trench cover application](https://qymetaltech.com/wp-content/uploads/2026/05/steel-grating-trench-covers-1.webp)

### Drainage and trench use

Higher load covers may need heavier bearing bars and support frames.







![Export packing for heavy duty grating](https://qymetaltech.com/wp-content/uploads/qymt-img-20261017/qymt-factory-packing-loading-06.webp)

### Export handling

Heavy panels need clear lifting, bundling and loading plans.







 





### Useful internal references

These pages help buyers compare related products, check finish options and prepare a clearer RFQ.



[Steel Grating Load Table](https://qymetaltech.com/resources/steel-grating-load-table/)[Steel Grating Weight Chart](https://qymetaltech.com/resources/steel-grating-weight-chart/)[Steel Grating Drain Cover](https://qymetaltech.com/steel-grating-drain-cover/)[How to Choose Steel Grating](https://qymetaltech.com/resources/how-to-choose-steel-grating/)

 

 

 







Related links

## Related product and RFQ resources

- [Steel grating product catalog](https://qymetaltech.com/products/#steel-grating-metal-flooring)Browse the related product family section.
- [Steel grating topic entry](https://qymetaltech.com/steel-bar-grating/)Steel grating family page for platform grating, stair treads, drain covers, serrated grating, galvanized grating and drawing-based RFQs.
- [19-W-4 steel grating](https://qymetaltech.com/19-w-4-steel-grating/)Compare material, bar spacing and project specification details.
- [Carbon steel bar grating](https://qymetaltech.com/carbon-steel-bar-grating/)Compare material, bar spacing and project specification details.
- [Steel Grating RFQ Checklist for International Buyers](https://qymetaltech.com/steel-grating-rfq-checklist-international-buyers/)RFQ checklist for steel grating buyers covering application, panel or opening size, bearing bar direction, support span, finish, quantity, packing, destination and drawings.
- [FRP Grating vs Galvanized Steel Grating for Wet Areas](https://qymetaltech.com/frp-grating-vs-galvanized-steel-grating-wet-areas/)Comparison guide for wet or corrosive area grating selection, covering FRP grating and galvanized steel grating by environment, traffic, support, cutouts and quotation details.
- [How to Choose Steel Grating for Industrial Platforms](https://qymetaltech.com/how-to-choose-steel-grating-industrial-platforms/)Industrial platform grating selection guide covering platform use, support span, bearing direction, panel layout, finish, cutouts, fixing clips, drawings and RFQ details.
- [Send project RFQ details](https://qymetaltech.com/contact/#rfq)Send drawings, dimensions, finish notes, quantity and destination for review.





 

## Factory verification and order terms





### Video factory visits by appointment

Video factory visits can be arranged in advance. Contact our sales team to agree a time, platform and accessible production, inspection or packing areas. Other customers’ information and confidential areas are not shown.





### Lead time: usually 30 days ex-works

For regular orders, production usually takes 30 days ex-works, counted from receipt of the deposit and approval of the drawings. Larger or special orders, and stock availability, are confirmed in the written quotation. Production and transport times are stated separately in the quotation or contract.





### Written quotation and delivery terms

Trade terms are agreed for each order and logistics arrangement. The written quotation specifies the applicable Incoterms® 2020 rule, named delivery place or port of shipment, and whether freight, insurance and taxes are included. For containers handed to a carrier before vessel loading, FCA is considered rather than automatically using FOB.





### Quality concerns and corrective action

Please provide the order number, affected quantity, photos or video, and relevant measurements or inspection records when reporting a quality concern. If responsibility is confirmed to lie with us, a remedy such as repair, additional supply, replacement, refund or price adjustment is agreed under the contract. Costs and the action plan are confirmed in writing; no unconditional return or fixed resolution period is promised.





[Check our company registration details](https://qymetaltech.com/about/#verify-qy-metal-tech)

Source: https://qymetaltech.com/heavy-duty-bar-grating/