40ft Double Door Dimensions
A 40ft double door shipping container has opening steel doors at both short ends. This arrangement provides access from either end, which can make loading, unloading and internal movement more practical than using a container with doors at one end only.
The dimensions below help with site planning, storage layouts and delivery preparation. The second doorway also affects positioning, as both ends need enough clear space for the doors to open and for people or equipment to pass through.
External and Internal Dimensions
The external measurements show the space required for the container itself. Internal measurements indicate the available length, width and height for stored goods, equipment or a conversion project.
| Measurement | Metric | Imperial |
|---|---|---|
| External length | 12,192 mm | 40ft 0in |
| External width | 2,438 mm | 8ft 0in |
| External height | 2,591 mm | 8ft 6in |
| Internal length | 12,032 mm | 39ft 5in |
| Internal width | 2,352 mm | 7ft 9in |
| Internal height | 2,393 mm | 7ft 10in |
The internal dimensions are smaller than the external footprint because of the container walls, doors and structural framing. Allow extra space in your layout for shelving, insulation, linings, equipment and safe movement around stored items.

40ft Double Door Opening Dimensions
Both ends have a clear door aperture measuring 2,340 mm wide and 2,280 mm high. These openings are useful when goods need to enter from one end and leave from the other, or when the container forms part of a walk-through layout.
Check the dimensions of pallets, handling equipment and any items that need to pass through the doors. The clear aperture is not the same as the external width or height, and door hardware can affect the usable opening near the edges.
Both sets of doors need working clearance. If one end is positioned against a wall, fence, stored materials or another obstruction, that doorway may not be usable. Leave enough room for the door leaves and locking bars to operate safely, particularly if the container will be accessed regularly.
Planning the Container Footprint
The container requires a level, firm support arrangement suited to the ground and the expected load. Uneven settlement can affect the frame and make the doors harder to operate. A level position also helps when placing shelving, racking or other internal equipment.
Measure the full external footprint rather than relying on the internal storage area. Include space for both door ends, access around the container where needed and any future collection route. A container can fit within the proposed storage area but still be unsuitable for delivery if the vehicle cannot reach a position from which it can be placed.
Confirm the specification of the selected unit before finalising a detailed layout. This is especially relevant where the container will be lined, insulated, fitted out or used to house equipment that needs fixed clearances.
Delivery and Placement Considerations
Where HIAB delivery is used, the vehicle needs a suitable route and a position from which the container can be lifted and placed. Check the entrance, route, turning space and the intended crane position before delivery is arranged.
Look for overhead obstructions such as cables, branches, roof edges and other structures. The lifting area should also be kept clear of people, vehicles and stored materials while the container is being positioned.
Discuss the final door orientation in advance. Placing the container with both door ends accessible may be useful, but the best position depends on the site layout and how the unit will be used. Read the delivery guidelines before preparing the site.