External, internal, door openings and capacity — plus the high cube line, because headroom is the spec people forget until the racking won't fit.
| Container | External L×W×H | Internal L×W×H | Door W×H | Capacity |
|---|---|---|---|---|
| 10ft Containers | 2.99m × 2.44m × 2.59m | 2.83m × 2.35m × 2.39m | 2.34m × 2.28m | 16m³ |
| 20ft Containers | 6.06m × 2.44m × 2.59m | 5.90m × 2.35m × 2.39m | 2.34m × 2.28m | 33.2m³ |
| 40ft Containers | 12.19m × 2.44m × 2.59m | 12.03m × 2.35m × 2.39m | 2.34m × 2.28m | 67.7m³ |
| 40ft High Cube | 12.19m × 2.44m × 2.90m | 12.03m × 2.35m × 2.69m | 2.34m × 2.58m | 76.4m³ |
Door height is lower than internal height. Tall gear has to clear 2.28m at the doorway on a standard unit, not the 2.39m you measured inside. That's the one that stops a forklift mast or a tipper body.
Internal width is 2.35m. A car fits, but the door opening is snugger than the inside, so allow for mirrors and for the angle you're driving in at.
A high cube's extra 300mm changes the use. It's the difference between storage you reach into and a space someone can stand up and work in all day — and it leaves you room to vent high on both ends, which matters more in this humidity than most people expect. See the high cube page.