An overview of standard shipping container dimensions
Shipping containers have standardized dimensions. This standardization is no accident: containers must fit on ships, trucks, and railcars worldwide. The dimensions are internationally defined in ISO standards.
The exterior dimensions determine how the unit is transported and installed. The interior dimensions and cargo capacity determine how much you can store inside. Keep this in mind when making your choice.

The 10-foot shipping container: compact and versatile
Exterior dimensions: approx. 3.0 m long × 2.44 m wide × 2.59 m high
Interior dimensions: approx. 2.84 m long × 2.35 m wide × 2.39 m high
Cargo volume: approx. 16 m³
The 10-foot container is the smallest standard size. It fits on virtually any site and is easy to position using a crane truck.
Storage of materials at the construction site
Space is limited on a busy construction site. A 10-foot container solves that problem. You can safely store tools, small machinery, and building materials inside it. The container locks securely and is placed right where you need it. At the end of the project, it’s just as easy to move it out again.
Temporary storage during renovation work
Anyone renovating a home or commercial property temporarily has nowhere to store their belongings. A 10-foot container offers a solution. It sits discreetly in the driveway or next to the building and is removed as soon as the work is finished. No moving truck, no expensive storage unit at an off-site location.
Archive and Document Storage
Paper files, archive boxes, and accounting documents take up space. A 10-foot container is dry, secure, and less expensive than renting additional office space. Companies that are legally required to retain documents will find this a practical solution.
Small retail unit or pop-up location
The 10-foot container is increasingly being used as a compact retail space. Think of a booth at an event, a seasonal retail location, or a temporary showroom. Thanks to its compact size, it’s easy to move and set up, even in locations where space is limited. Do you have specific requirements? If so, we can convert your shipping container for you.
The 10-foot container is ideal if you have limited space or a small amount of items to store. If you need more capacity, you should consider the 20-foot container instead.

The 20-foot shipping container: the gold standard
Exterior dimensions: approx. 6.06 m long × 2.44 m wide × 2.59 m high
Interior dimensions: approx. 5.90 m long × 2.35 m wide × 2.39 m high
Cargo volume: approx. 33 m³
The 20-foot container is by far the most commonly used size. It combines a practical volume with a manageable footprint. Virtually every carrier and rental company uses this size as standard.
Storage facility for palletized goods, machinery, or raw materials
Companies that regularly receive or ship goods need flexible storage capacity. A 20-foot container can hold several pallets side by side. You load and unload through the double doors at the rear. This makes it practical for warehouses, manufacturing companies, and wholesalers.
Site trailer or office space on the construction site
A 20-foot container is large enough to be converted into a construction site office. You can set up a desk, chairs, and a small meeting area inside. Construction crews use it as their daily base of operations. Equipped with insulation, lighting, and an electrical outlet, it quickly becomes a functional temporary office.
Workspace or studio
Artists, artisans, and creators are discovering the 20-foot container as an affordable workspace. The steel walls are durable and easy to customize. You can place the container on your own property and immediately have a separate workspace, distinct from your home or business premises.
Storage for the hospitality industry, the events sector, or retail
Restaurants and bars use them to store beverages, kitchenware, or seasonal supplies. Event agencies use them to store stages, tents, and props. Retail chains use them for temporary storage during seasonal peaks. The container locks securely and is built to withstand Belgian weather. For goods that require proper refrigeration, refrigerated reefer containers are also available for rent. This allows you to handle the increased demand during seasonal peaks without sacrificing space.
Temporary Inventory Storage During Logistics Peaks
Logistics companies experience peak periods: the run-up to the holidays, major promotions, or sudden delays in shipments. A 20-foot container serves as a buffer during these times. You rent it for the duration of the peak and return it afterward. This is cheaper and more flexible than renting additional warehouse space on a long-term basis.
The 20-foot container offers good value for the price. For most basic storage needs, this is the right choice.

The 40-foot shipping container: maximum capacity
Exterior dimensions: approx. 12.19 m long × 2.44 m wide × 2.59 m high
Interior dimensions: approx. 12.03 m long × 2.35 m wide × 2.39 m high
Cargo volume: approx. 67 m³
A 40-foot container offers exactly twice as much volume as a 20-foot container. It is popular with companies that regularly store large quantities of goods or that need space for their operations.
Large-scale storage of bulk goods, furniture, or machinery
Furniture manufacturers, machinery manufacturers, and wholesalers need real storage capacity. The 40-foot container offers 67 m³ of cargo space. That’s enough for large quantities of goods, heavy machinery, or bulky items that are difficult to store elsewhere. You can work efficiently with a forklift thanks to the wide doors and flat floor.
Workshop or production area
Welders, carpenters, and other tradespeople can convert the 40-foot container into a fully-fledged workshop. Its length of over twelve meters gives you plenty of space to work on long pieces of material. You can install workbenches, machines, and storage space along the walls. The steel structure effectively dampens vibrations and noise.
Restroom facilities or common areas on large construction projects
On large construction projects, adequate facilities are required. A 40-foot container is spacious enough to house a complete restroom unit with showers, toilets, and changing rooms. Or you can set it up as a break room where workers can eat, rest, and hold meetings. This improves comfort on the job site and meets welfare standards.
Combined storage and office space in a single unit
Some companies want to combine storage with a small office space. A 40-foot container makes this possible. With the necessary renovations, you can divide the container into two zones: a locked-off office area in the front and a storage area in the back. One unit, two functions. This saves space on the premises and simplifies organization.
Permanent on-site storage
Companies with their own outdoor space use the 40-foot container as a permanent storage solution. It stays there year after year, doesn’t rust easily thanks to its treated steel construction, and requires little maintenance. It’s cheaper than building an outbuilding and just as functional.
Please note: A 40-foot container requires more space for placement and for the delivery route. Check in advance to make sure a truck approximately 14 meters long can reach the location.
The 40-foot High Cube: extra height for more possibilities
Exterior dimensions: approx. 12.19 m long × 2.44 m wide × 2.89 m high
Interior dimensions: approx. 12.03 m long × 2.35 m wide × 2.69 m high
Cargo volume: approx. 76 m³
The High Cube (HC) has the same length and width as a standard 40-foot container, but is 30 cm taller. That may not sound like much, but you’ll notice the difference as soon as you step inside the container.
Storage of high-stacked goods or racks
If you want to install shelving units or tall racks, you’ll quickly run into the ceiling in a standard container. The High Cube gives you those extra centimeters. You can utilize the full height of the container, thereby increasing your storage capacity without needing additional floor space.
Can be used as a living space, office, or showroom
The High Cube is the most commonly used base for converted containers. The extra headroom makes it a pleasant place to be. Architects and interior designers like to work with this size because it offers more options for layout, insulation, and finishes. You can install suspended ceilings, utility systems, or raised floors without it feeling cramped.
Applications that incorporate ventilation, lighting, or insulation
Anyone looking to install technical equipment in a container needs space for pipes, ducts, and insulation. In a standard container, that space is quickly used up. The High Cube, however, does provide that extra space. This makes it suitable for refrigerated containers, server rooms, laboratory setups, and other applications with technical requirements.
Creative projects such as pop-up stores or temporary installations
Retailers, brands, and event organizers are increasingly opting for a shipping container as a temporary eye-catcher. The High Cube offers enough interior space to create a truly immersive experience. You can install furnishings, lighting, and displays without the space feeling cramped. The container attracts attention and can be quickly set up at a new location.
The High Cube is the standard choice for anyone who wants to convert or customize a container. The extra headroom makes working and moving around more comfortable.

Which shipping container size should you choose?
Still not sure? Ask yourself three questions:
- How much space do I need? Make a rough estimate of the volume of your goods or activities.
- How long will I need the container? For short-term projects, renting is usually the better option. For long-term use, purchasing is more cost-effective. In our article “Buying or Renting a Shipping Container,” we explain the criteria for making this decision.
- Is the location accessible? Longer containers require more maneuvering space upon delivery.
As a rule of thumb, always choose something a little roomier than you think you'll need. A container that's too tight won't work. A container with a little wiggle room is just right.
Ready to choose?
Now that you know which shipping container size is right for your application, the next step is simple. Cetem supplies containers in all standard sizes, available for both rent and purchase.
Check out our selection of shipping containers for rent or for sale.
