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Quality you can see, experience you can trust.

Qualities of a Good "Used" Shipping Container

Shipping Containers as Storage Units

Shipping containers for sale on the storage market can all look the same, but there are some things to look out for which can give an indication on if a container is sound. Shipping containers will either be used (10-15 years old already, and retired from the shipping lines), or once-used (a once-used container will have been shipped once with cargo from the country on manufacture in order to keep costs of import down). Although a used container is cheaper than its once-used counterpart, this doesn't mean it should be any less effective as a storage unit, and can be a good solution for customers working to a tight budget.

Things to look out for when purchasing a used container

Used containers aren't always the most aesthetically pleasing. You can expect your used container to have dents, dings, scrapes and rust. These qualities do not mean the container is unsuitable or unfit for purpose, they're just signs of its previous life as a shipping container. However, there are certain characteristics of used containers which give a good indication as to their quality:
  • Fully seam welded patch repairs. These containers will have been shipping cargo across the oceans for many years, often stacked high on cargo vessels and filled with a variety of different cargo. As such, between the ocean air, salt water and handling at various shipping depots across the world, some containers will have required maintenance and patching in order to keep them usable. This involves a welder removing a broken or damaged part of the corten steel and replacing it with a matching piece of corrugated steel, fully seam welding the patch to ensure the container is still watertight and structurally sound. Some people see these patches as unsightly, however a proper seam welded patch shows a repaired container, not a broken one.

  • Intact seals and 'free and easy' doors. Shipping container doors have seals around the outside to prevent any water ingress damaging the cargo inside whilst the container is in transit. Something to keep an eye out for is to make sure the container door seals are still intact and line up properly against the container. We call these doors the S2 doors, however we actually manufacture other door types specifically for the storage market. You also want to check your original container doors are 'free and easy'. Used containers have a reputation for having stiff and difficult doors. Whilst common, you want to make sure the doors are able to open and close properly. Sometimes rust can build up inside the hinges, making the doors unusable, let alone stiff!

  • No light when you're inside. Sounds simple, but as these units will have been shipped numerous times, rust will be evident. This is normal as Corten Steel is designed to rust to provide further protecting against the elements however, if untreated, it can corrode the whole way through. One of the first checks we perform when inspecting used units which come into our depot is to go inside the container and close the doors. If we can see light peeking through anywhere, we know the unit will need repairing to make it watertight again.

Four Door Options

All our used shipping containers come with a choice of four door types, suitable for different types of usage. See our 20ft used products with our four door types below:

20ft used container S1 doors
20ft container S2 doors
20ft container S3 doors
20ft container S4 doors

If You Have Any Questions

If you have any further questions about qualities you need to look for in a shipping container, please don't hesitate to contact us by phone or email.

Testimonials

As a long established and reputable shipping container company, we want to instil confidence in our customers that we can deliver on our promises, and provide high quality products and service.

But don't just take our word for it, see for yourself what our past and present clients have to say about Containers Direct.
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"We've just had delivery of our 30ft container and all is good thank you. I just wanted to write to say what a nice, pleasant and talented driver you have delivering for you, nothing was too much trouble, obviously knew exactly what he was doing and could place this huge container within millimetres of where we wanted it. We were really really impressed, thank you for a great service." C & D King Ltd
26th January 2026
order - a New 'Once-Used' 30ft Container
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"The container arrived and everything looks great, so far I am very happy. Just wanted to say that your driver was excellent, a very pleasant fella to deal with and very accommodating to what was quite a tricky delivery venue. Thanks for a great service." ATGT Limited
13th January 2026
order - a Used 15ft Container
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"The flat pack containers we purchased from yourselves, we were highly impressed with how easy they were to assemble and the quality of the materials and end product. I'd like to thank you for all your help in delivering that scheme, including the visit to your site in Kirkby." Knowsley Council
9th January 2026
order - two Flat Pack Office Containers
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"Service was very good." Lubet Engineering Ltd
15th December 2025
order - two Used 30ft Containers and a Used 4ft Container
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"Whole process extremely good, Hannah was very helpful and gave rapid responses. Dave the lorry delivery man was really excellent, extremely helpful." Mark Nixon
10th December 2025
order - a 4m Flat Pack Store
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"Really good process from start to finish." Soldado Limited
1st December 2025
order - a 4x Used 20ft Containers
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Committed to Quality

We are ISOQAR Approved and certified to ISO 9001:2015 Quality Management Systems, demonstrating our commitment to excellence. We are also members of MakeUK, who champion British manufacturing, and the Container Self Storage and Traders Association (CSTA), representing global operators and innovators. In addition, we are registered members of JOSCAR, the Joint Supply Chain Accreditation Register.

ISOQAR Approved – ISO 9001:2015 Certificate No. 13586-QMS-001
MakeUK Member – Supporting British Manufacturing
Container Self Storage and Traders Association Member
JOSCAR Registered Member
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