This project shows how a 40ft High Cube Open Top shipping container can be converted into a watertight special container with an integrated water basin while retaining its suitability for standard sea transport.
Specifications chart
| Area | Europe |
| Container type | 1 × 40ft High Cube Open Top shipping container |
| Challenge | Integrate a watertight basin into a shipping container while maintaining the structural strength and transportability required for normal containerised sea freight. |
| Solution | A structurally calculated 40ft HC Open Top container with an integrated water basin, completed container modifications, retesting and a CSC approval inspection. |
| Sector | Energy |
| Production | EU |
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What we designed and built
The client needed a highly durable and watertight special container that could still be transported in the same way as a standard CSC/ISO shipping container. A 40ft High Cube Open Top container was selected as the base. The container was modified and fitted with an integrated water basin designed for the project’s specific operational requirements.
The project included the structural design and strength calculations required for the modified container. These calculations guided both the container modifications and the construction of the watertight basin. The completed structure combines the capacity of a 40ft High Cube container with the open access provided by an Open Top design.
Testing and transportability
After the structural modifications and basin construction were completed, the container was retested. A CSC approval inspection was also carried out to verify its suitability for standard container transport.
This allows the specialised unit to be transported by sea using established CSC/ISO container-handling systems.
Highlights of this build
40ft High Cube Open Top shipping container
Integrated water basin
Watertight construction
Structural design
Strength calculations
Container modification work
Basin construction
Container retesting
CSC approval inspection
Suitable for standard CSC/ISO transport
Designed for sea freight

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