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When people talk about ISO containers, they usually mean shipping containers or storage containers. These simple steel boxes have completely transformed the way goods are moved, stored, and even repurposed for everyday use.

But what does “ISO” really mean? The term comes from the International Organisation for Standardisation, which created strict specifications for container design. These standards guarantee that every ISO container is a uniform size – usually 10ft, 20ft, or 40ft – and can be safely stacked, transported worldwide, and transferred between ships, trucks, and trains.

This uniformity is why shipping containers are the backbone of modern trade, enabling efficient movement of goods across the globe – and why they’re now widely available for sale, hire, and conversion across the UK.

The Origins of ISO Containers

The story of ISO containers begins in the USA with a trucker named Malcolm McLean. In 1956, after two decades on the road, McLean noticed how inefficient shipping was: cargo came in every shape and size, wasting space and slowing down loading times.

McLean’s solution was simple but revolutionary – a standardised cargo box. That same year, he sold his trucking company for $25 million and purchased the Pan Atlantic Tanker Company. He retrofitted its ships to carry these new containers, laying the foundations for what we now call containerisation.

Sea-Land Shipping and Global Adoption

McLean’s business, renamed Sea-Land Shipping, perfected the ISO container. His design was:

  • Strong enough to withstand harsh seas and weather.
  • Easy to stack and lock in place.
  • Transferable across sea, road, and rail without unpacking.

By the late 1960s, with the support of the US military, containerisation had proven its worth. In 1969, McLean sold his shares in Sea-Land for $160 million but kept the container patents. By the late 1970s, his invention had been adopted worldwide.

In 1999, Sea-Land was acquired by Maersk, the world’s largest shipping company, and containerisation became the global standard for moving goods.

ISO Containers Today

Fast forward to today, and ISO shipping containers are one of the most effective, sustainable, and versatile transport solutions. They are used every day to ship millions of tonnes of goods quickly, safely, and cost-effectively.

But containers are no longer just for shipping. In the UK, they are increasingly used for a wide range of applications, including:

  • Pop-up cafés and retail units
  • Event and exhibition stands
  • Site offices and workshops
  • Plant rooms, switchgear enclosures, and battery storage units
  • Affordable housing and modular workspaces

Thanks to their Lego-like adaptability and weather resistance, containers can be modified into secure, cost-effective, and eco-friendly spaces.

The Future of Containerisation

Looking ahead, ISO containers will play an even greater role in how we trade, build, and live. With the growth of modular construction and the push for sustainability, containers are being repurposed as part of the circular economy.

Instead of scrapping old containers, they are given a new life as offices, homes, workshops, or energy storage units. For UK businesses, this makes them a low-cost, flexible, and environmentally responsible choice.

Why Choose Shipping Containers in the UK?

If you’re looking for a shipping container in the UK, whether for storage, transport, or a custom conversion, ISO containers offer several benefits:

  • Standard sizes (10ft, 20ft, 40ft) to suit all needs.
  • Durability – built to withstand global shipping conditions.
  • Cost-effectiveness – affordable compared to traditional buildings.
  • Flexibility – hire, buy, or customise to your requirements.
  • Sustainability – repurposing used containers supports eco-friendly construction.

Buy, Hire, or Convert a Container with Us

At S Jones Containers, we supply a wide range of shipping containers for sale, hire, and conversion across the UK. Whether you need a standard storage unit, a container for transport, or a fully customised solution, our expert team can help.

Our services include:

  • Container sizes available: 10ft, 20ft, and 40ft
  • Options: new and used containers
  • Services: container hire, sales, and bespoke conversions

We also provide nationwide delivery and installation, ensuring your container is ready for use as quickly as possible.

Frequently Asked Questions

Can containers be converted for business use?

Yes – containers can be converted into offices, workshops, retail units, plant rooms, and more.

Do you deliver containers across the UK?

Yes – we offer nationwide delivery and installation. 

What is an ISO container?

An ISO container is a shipping or storage container built to international standards, making it compatible with ships, lorries, and trains worldwide.

What sizes do shipping containers come in?

The most common sizes are 10ft, 20ft, and 40ft, but bespoke conversions can create tailored solutions.

Get in Touch

If you’re looking to buy, hire, or convert a shipping container in the UK, our team is here to help. We’ll provide expert advice and a tailored solution that fits your business needs.

Contact us today for a free quote and discover how a shipping container conversion could work for you.


S Jones Containers Ltd

Anglian Road,
Aldridge, Walsall,
West Midlands,
WS9 8ET

Company Reg Number: 3747019
VAT Number: 729700231

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