What are ISO Containers – A Complete Guide to ISO Containers

ISO containers are used all over the world. You see them at ports, on construction sites, and moving down highways on flatbed trucks. They store goods, they shift products, and they even serve as portable offices or pop-up shops. This guide gives you a clear overview of ISO containers. 

You'll learn what they are, how they are built, what sizes are available, and why they're so widely used. If you run a business, manage your site, work in logistics, or need extra storage at home, this guide is for you.

What does ISO stand for?

ISO stands for the International Organisation for Standardisation. It's an independent global body that creates standards across many industries. The goal is to make sure products and systems are uniform, compatible, and safe, no matter where they're used. When it comes to containers, ISO sets the rules for:

- Dimensions

- Strength

- Corner fittings

- Lifting and stacking systems

That means an ISO container built in Europe will fit a crane in Australia and a truck bed in the US. It creates a common language for logistics and construction. Without these standards, global trade would slow down, and moving or storing goods would become a lot harder. Every ISO container that meets ISO standards allows you to use it with confidence, wherever your job takes you.

What is an ISO container? 

 An ISO container is a freight container built to international standards. They are sometimes called intermodal containers because they move easily between ships, trains, and trucks without needing to unload and reload cargo. They're tough; most are made from carbon steel, a material known for its strength and resistance to corrosion. 

Each container has:

- Standardised corner castings for lifting and stacking 

- Double doors with secure locking mechanisms 

- Thick steel panels 

- Weather resistance seals 

This makes them reliable for both shipping and onsite storage. Their uniform design also means they're stackable, easy to transport, and simple to handle with cranes or forklifts. 

That's why businesses across the world rely on ISO containers for everyday operations. At TEU, we supply containers that meet every one of these requirements.

Standard ISO container sizes and dimensions:

There are several standard ISO container sizes. Each is built to precise measurements, so it fits trucks, ships, and handling equipment worldwide.

20 feet ISO container 

External length: 6.06m  

Width: 2.44m  

Height: 2.59m  

Capacity: around 33 cubic meters  

This size is ideal for most types of cargo. It's easy to move on tight sites and perfect for dense or heavy goods. It's also a popular choice for general storage.

40 feet ISO container  

External length: 12.2m  

Width: 2.44m  

Height: 2.59m  

Capacity: around 67 cubic meters  

Used for high-volume cargo, this is the most common size in global shipping. It also works well on larger sites that require more space. Many TEU customers use 40-foot containers as onsite storage or base units for modular buildings.

All three sizes are available at TEU with custom options depending on your site and storage needs. 

Uses of ISO containers 

ISO containers are incredibly versatile; they're used in dozens of industries and not just for shipping.

Shipping and transport 

This is their original purpose. Goods are loaded at the source and stored at the destination. Because of their strength, security, and global compatibility, ISO containers make up the backbone of international trade.

On-site storage

Construction sites, warehouses, and remote operations all need safe storage. Proof that storage ISO containers work well for tools, equipment, materials, or supplies. They can be delivered directly to your site and used immediately. You can even move them between jobs as needed.

Temporary workspaces 

Many customers convert containers into offices, workshops, or lunch rooms. Thanks to their structure, containers can be modified with doors, windows, insulation, and wiring. Some are even stacked and joined together to create modular buildings. They are a practical option for short-term or mobile workspaces.

ISO Containers for Storage: What You Need to Know 

 Looking for long-term storage that's secure, simple, and reliable? 

ISO containers check every box. Secure by design, they are made from solid steel and come with double locking doors. You can add padlocks or lockboxes for extra protection. 

Whether you're storing documents, tools, or products, your contents stay safe. Built for all weather, TEU containers are wind and water-tight; rain and dust can't enter. 

They're designed to handle it all, so you won't need to worry about leaks or rust with properly maintained units. 

Easy to move thanks to the standard sizes, ISO containers can be delivered and placed with minimal fuss. 

They work with cranes, forklifts, and trailers, making them ideal for temporary or changing work sites. 

Stackable and space-saving, ISO containers can be stacked vertically using standard lifting gear. This helps reduce your storage footprint while increasing capacity.

Why use TEU for ISO Shipping Containers? 

At TEU, we supply certified ISO containers that meet international standards for size, strength, and safety. 

Our containers are suitable for global shipping, domestic transport, on-site storage, customised workspace, or retail units. We offer both new and used containers depending on your budget and purpose. 

Need short-term storage? We also provide flexible rental options with fast delivery. 

Looking to buy? TEU containers are ready for immediate dispatch. 

Our team helps you choose the right size, arrange delivery, and even modify your container if needed, from a single unit to full-scale site setups. We are ready to help! 

Ready to get started?

Whether you need a container for shipping, storage, or space, TEU has the right ISO container for you. We guide you through your options and provide clear pricing and fast delivery. 

Contact our team today to discuss your needs. TEU ISO containers are strong, secure, and built for the real world. 

Let's find the one that fits your project.