Container types
40' General Purpose
The most common ocean-freight box on the road — same cross-section as the 20' GP, doubled in length.

Specifications
| External (L×W×H) | 12 192 × 2 438 × 2 591 mm |
|---|---|
| Volume | 67 m³ |
| Internal (L×W×H) | 12 032 × 2 350 × 2 393 mm |
| Door opening (W×H) | 2 340 × 2 274 mm |
| Tare | 3 700 kg |
| Max gross | 32 500 kg |
| Max payload | 28 800 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.