20 ft Topper Conversions:

Topper conversions are innovative and creative new container conversions that are ideal for self-storage. They offer alternative storage spaces on the upper level
and increased revenue opportunities for a self-storage site.

New (one trip) 20ft topper conversions:

These specialised container conversions are perfect for self-storage sites. They are designed to be placed on top of standard 20ft containers, and act as a further location for smaller storage units. The 20ft x 8ft containers are converted to leave a ‘walkway’ through the centre leaving two storage
rooms on the side.

For a self-storage company, these topper units are perfect for your site. They slot conveniently on top of your existing containers and provide added attraction for customers who are looking to store less. The central corridor is positioned strategically to allow numerous toppers to be sited in a long row on the upper level creating a long corridor of storage units.

Topper containers are interlocked using twist locks to securely connect them to the ground level containers. This ensures they do not move in strong winds and remain wind and watertight throughout their lifespan. 

Although these topper units are originally designed for self-storage sites, they can fill a wide range of alternative needs and are perfect for small container projects.


14+ vents

Wind and watertight

Different flooring types available (e.g. steel chequer plate)

Available in Blue or Green

Two storage units

Options to add corridor lighting.

Built in the UK vs China factory build?

Shorter lead times for UK built toppers.
Can be more cost effective (subject to delivery location / steel prices / shipping freight rates)

To be aware of:
These units are fabricated at our UK based depots; however, we have to ‘cut’ into the sidewalls of a new 20ft and create the internal storage units using steel partitions.

China factory build?

Longer lead times for production as they are built at the factory and then freighted over with the shipping lines.
Quality of a factory-built topper is of an exceptionally high standard.
Can be more cost effective if ordering in large batches.
We can build your toppers exactly to your specification and requirements with our Chinese factory.

We are rated Excellent on Trustpilot

Excellent customer service

“Excellent customer service. Dominic, Nicola and Val on the team were ultra helpful and nothing was too much trouble. The delivery driver Lee’s skill at deploying the container in the tightest of spaces with amazing precision has to be seen, really impressed with the service.”
– Peter

The whole experience from initial…

“The whole experience from initial enquiry right through to delivery was flawless. Queries to the sales team were answered quickly and they went out of their way to arrange for pick up of old containers when the new ones were delivered. The new containers are superb….one very happy customer. :)”
– David Sanders

Great Customer Service & Products

“We purchased a reefer through Boxtor and Dominic was our main point of contact since the beginning. He provided us with a competitive quote and made sure that the reefer was delivered as soon as possible. The whole process was seamless and we are very happy with the overall experience. We are looking forward to doing business with Boxtor again in the near future”
– Theo Alatas


If you are after a new or used shipping container, why not get in touch and we can fulfil your requirements today!

Fill in our bespoke quote form and we can get back to you quickly with a price breakdown.

Get In Touch

Whether you are after a new or used shipping container, why not get in touch and we will do all we can to fulfil your needs.

Alternatively, if you want to have a chat about your container purchase/hire, or you need a bit of friendly advice, drop us an email or give us a ring!