20ft High Cube Container Dimensions
20ft high cube container dimensions are similar to those of a standard 20ft container at floor level, but the high cube has an additional foot of external height. This creates more internal headroom and storage volume without increasing the length or width of the unit.
That extra height can help when storing taller equipment, using racking or planning a conversion. It also needs to be considered when checking delivery access, overhead obstructions and the proposed placement area.
20ft high cube external dimensions
The external measurements show the space the container occupies on your site. They also help you assess whether the unit can pass through an entrance or be placed beneath overhead structures.
| Measurement | Metric | Imperial |
|---|---|---|
| Length | 6,058mm | 20ft 0in |
| Width | 2,438mm | 8ft 0in |
| Height | 2,896mm | 9ft 6in |
The 9ft 6in external height is the main difference between a high cube and a standard container. Check the full route into the proposed position for branches, beams, building overhangs, cables and other obstructions. The container must also be considered alongside the delivery vehicle and lifting method.
20ft high cube internal dimensions
Internal dimensions are smaller than the external measurements because the steel walls, doors, roof and corner posts take up part of the available space.
| Measurement | Metric | Imperial |
|---|---|---|
| Internal length | 5,898mm | 19ft 4in |
| Internal width | 2,352mm | 7ft 9in |
| Internal height | 2,698mm | 8ft 10in |
The additional internal height can make it easier to stack items vertically or accommodate taller goods. It may also leave more usable headroom where the container is being considered for a workshop, office or other conversion. Any internal lining, insulation, racking or equipment will reduce the clear space, so allow for these additions when planning the layout.
Internal volume and weight information
The stated internal cubic capacity is 37.4 cubic metres, or approximately 1,322 cubic feet. This gives a useful indication of the available volume, although the practical storage capacity will depend on the shape of the goods, loading method and space needed to reach stored items.
- Tare weight: 2,315kg, referring to the empty container.
- Maximum payload: 28,165kg, referring to the stated maximum cargo weight.
- Maximum gross weight: 30,480kg, referring to the container and its contents together.
Weight figures can vary between individual containers and should be checked against the container’s data plate and the intended handling or transport arrangements. The maximum payload is not a guide to how much a particular site, support surface or delivery method can safely carry.
What the extra height means in practice
A 20ft high cube can be useful where the available ground area suits a 20ft unit but the contents need more vertical clearance. Common considerations include:
- Tall equipment: Check the height of machinery, plant or other items against the internal clearance, including any lifting or loading equipment.
- Racking and stacking: Extra headroom may provide more scope for vertical storage, but the racking arrangement must still leave safe access to doors and stored goods.
- Conversions: The additional internal height can provide more room for a lining, insulation, lighting or other planned additions. These changes reduce the finished internal clearance.
- Site storage: Measure the available area as well as the route to it. A container can fit within the intended storage space but still be unsuitable if it cannot reach a position from which it can be placed.
For comparisons with other sizes, see the container dimensions information.
Delivery and placement considerations
Where HIAB delivery is used, the vehicle needs suitable access and a position from which the container can be placed. Check the entrance route, turning space, ground condition and overhead clearance before arranging delivery. The proposed drop zone should be clear of low branches, cables, roof edges and other obstructions.
The support surface should be firm and reasonably level so that the container remains properly supported and the doors can operate. The ground and support arrangement need to suit the site and the expected load. Consider drainage and future access as well, particularly if the container will remain in position for an extended period.
Read the delivery guidelines before confirming the placement area. If the container will be modified or used as a workspace, planning requirements can depend on how it will be used, how long it will remain in place, the status of the site, its visibility, nearby neighbours and local planning policy. Listed buildings, conservation areas, a change of use or a prominent position may create additional considerations. Check current requirements with the relevant council.
Choosing a 20ft high cube container
Compare the measured internal clearance with the height and loading requirements of the items you plan to store. Allow space for doors, corner posts, racking and any future alterations rather than relying only on the cubic capacity.
Condition and specification can vary between individual containers, so confirm the dimensions and relevant weight information for the unit being considered. For a container suited to your intended use and site, you can submit an enquiry through the container quote page.