Container types
20' General Purpose
The baseline ISO dry-van container — the reference unit that Twistlock Africa's standard-range twistlocks, corner castings and lashing hardware are dimensioned against.

Specifications
| External (L×W×H) | 6 058 × 2 438 × 2 591 mm |
|---|---|
| Volume | 33 m³ |
| Internal (L×W×H) | 5 896 × 2 350 × 2 393 mm |
| Door opening (W×H) | 2 350 × 2 274 mm |
| Tare | 2 280 kg |
| Max gross | 30 480 kg |
| Max payload | 28 200 kg |
Standard: ISO 668 (series-1 external dimensions); ISO 1496-1 (dry freight containers). Source: Maersk (South Africa) dry equipment specification sheet. Individual fleet ratings vary — confirm against the CSC plate.