Container types
20' Open Top
Standard GP external envelope with a removable tarpaulin roof in place of a fixed steel roof — for cargo that must be loaded from above or exceeds standard door-height clearance.

Specifications
| External (L×W×H) | 6 058 × 2 438 × 2 591 mm (shares the GP series-1 envelope) |
|---|---|
| Roof opening (L×W) | 5 680 × 2 250 mm |
| Internal (L×W) | 5 900 × 2 340 mm |
| Door opening (W×H) | 2 290 × 2 250 mm |
| Tare | ~2 350 kg |
| Max gross | 30 480 kg (ISO series-1 rating) |
| Max payload | ~28 200 kg |
Standard: ISO 668 (series-1 external dimensions); ISO 1496-1 (open-top variant). Source: Blue Water Shipping container specification toolbox. Open-top tare/payload vary more than dry/reefer between manufacturers — confirm against the CSC plate before use in a firm quote.