Standard ISO Hard Top Container
The 20’ Hard Top Container (ISO 22U6) is designed for cargo that requires loading from above while providing the protection of a removable steel roof. Manufactured in accordance with ISO and CSC requirements, it combines the flexibility of an open top container with the security and durability of a steel roof. The ISO code 22U6 identifies a standard 20-foot Hard Top Container.
Its removable roof allows cargo to be loaded by crane, making it suitable for heavy machinery, industrial equipment and over-height cargo while remaining fully compatible with international intermodal transport.
Technical Specifications
| Specification | Value |
|---|---|
| ISO Code | 22U6 |
| External Length | 6,058 mm |
| External Width | 2,438 mm |
| External Height | 2,591 mm |
| Internal Length | 5,898 mm |
| Internal Width | 2,352 mm |
| Internal Height | 2,348 mm |
| Door Opening Width | 2,340 mm |
| Door Opening Height | 2,280 mm |
| Maximum Gross Weight | 30,480 kg |
| Tare Weight | 2,450 kg |
| Maximum Payload | 28,030 kg |
| Cubic Capacity | 32.7 m³ |
External Dimensions
The external dimensions comply with ISO standards, allowing unrestricted use across international container transport systems.
- Length: 6,058 mm
- Width: 2,438 mm
- Height: 2,591 mm
The standardized footprint enables efficient handling by container cranes, reach stackers, trucks and railway wagons.
Internal Dimensions
The cargo compartment has been designed to maximize usable loading volume while allowing roof removal whenever required.
- Length: 5,898 mm
- Width: 2,352 mm
- Height: 2,348 mm
With a capacity of 32.7 m³, the container is suitable for heavy, oversized and top-loaded cargo.
Door Opening
Full-width cargo doors allow loading by forklift or warehouse equipment whenever roof access is not required.
Door opening dimensions:
- Width: 2,340 mm
- Height: 2,280 mm
For oversized cargo, the removable steel roof provides unrestricted access from above.
Payload & Weight Ratings
The reinforced steel construction provides excellent structural strength while maintaining a high payload capacity.
- Maximum Gross Weight: 30,480 kg
- Tare Weight: 2,450 kg
- Maximum Payload: 28,030 kg
Actual payload depends on the manufacturer and container configuration.
Loading Capacity
Typical loading configuration includes:
- Industrial machinery
- Manufacturing equipment
- Steel coils
- Pipes
- Timber
- Stone products
- Heavy project cargo
- Over-height cargo
Actual loading capacity depends on cargo dimensions, packaging and lifting method.
Hard Top Design
Unlike an Open Top container fitted with a tarpaulin, the Hard Top Container features a removable steel roof that can be lifted off using a crane.
Typical features include:
- Removable steel roof
- Crane loading capability
- Full-width double cargo doors
- Heavy-duty construction
- Cargo lashing points
The steel roof provides greater protection against impact, weather and unauthorized access while retaining the flexibility of top loading.
Construction
The structure is manufactured from high-strength Corten steel, providing excellent durability under demanding operating conditions.
Standard construction features include:
- Removable steel roof
- Heavy-duty steel frame
- Marine plywood floor
- Weather-resistant door seals
- CSC certification
- ISO corner castings
- Forklift handling compatibility
Applications
The 20’ Hard Top Container is commonly used for:
- Heavy machinery
- Industrial equipment
- Generators
- Steel products
- Pipes
- Construction materials
- Stone products
- Manufacturing equipment
- Project cargo
- Export cargo
Standards & Certification
This container type complies with internationally recognised transport standards, including:
- ISO 668
- ISO 6346
- CSC Convention
- International intermodal transport requirements
These standards ensure worldwide compatibility with ports, depots, shipping lines and logistics operators.
Frequently Asked Questions
What does ISO code 22U6 mean?
22U6 identifies a standard 20-foot Hard Top Container with a removable steel roof.
What is the difference between an Open Top and a Hard Top Container?
An Open Top container uses a removable tarpaulin roof, while a Hard Top container is fitted with a removable steel roof that provides greater protection for the cargo.
What is the internal volume?
The internal cargo volume is approximately 32.7 cubic metres.
What is the maximum payload?
The maximum payload is approximately 28,030 kg.
Is the container suitable for international shipping?
Yes. It is designed specifically for international intermodal transport by sea, rail and road.