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Containers Direct logoQuality you can see, experience you can trust.
Quality you can see, experience you can trust.

Instructions On How To Join Up Your Containers On Site

What Are Joined Up Containers?

One of our most popular conversion projects is to join up two or more shipping containers together to form wider, or longer, spaces. These conversions have become more popular as shipping containers are more commonly used instead of traditional building materials. Although containers can be limited in terms of width and length, in joining up containers, we are able to offer wider or longer spaces whilst keeping the industrial feel and cost effective nature of upcycling an existing product.

How to join on site

When your joined up units arrive, we want to make sure you're able to join the units easily and securely, so we've written up our top tips. When the containers arrive on site, make sure they're perfectly level. This will prevent the containers from "racking out", which is where the containers twist slightly leaving it difficult to open and close the doors.

  1. When your containers arrive remove all the visqueen plastic and screws to show the interior of the units.

  2. The haulier is to butt the containers up on solid, level ground as close together as possible so the four corners are touching top and bottom.

  3. Fill any exposed gaps on the exterior with the expanding foam provided

  4. Place the white PVC capping provided over the protruding welded steel rail at the top of the units.

  5. Heat and lay the flash band that will also be provided along the edges of the PVC Capping and down the sides of the units so no water can get in.

  6. Paint over the flashband in the matching paint that comes with the materials provided.

  7. Screw the floor tread plates across the interior joins of the units.

The Kit

Customers will be provided with a simple, yet effective, joining kit:
  • PVC capping

  • Tin of matching paint

  • Tread-plate

  • Expanding foam

  • Flashbanding




If You Have Any Questions

If you need further clarification or assistance, please give us a call, and a member of our team will be happy to guide you through the process to get your joined up containers up and running as quickly as possible.

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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"I found the process efficient and professional. Communication was superb." Plymouth Cricket Club
17th March 2026
order - a 3m Flat Pack Container Store
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"All in all a really good experience. The sales process particularly was really good and informative, and all my questions were handled promptly and without any fuss. The information packs were really useful and informative, and made things really clear." Ben Hull
17th March 2026
order - a Once-Used 15ft Container
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"The delivery driver was excellent. Very professional, friendly and helpful to position the container exactly where we wanted it." Stuart Thorne
12th March 2026
order - a Used 16th Container
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"Very happy with the delivery time - 7.00am. It was great to get a call the day before asking if 7.00am was ok. Being a school this was perfect for us. The driver was on time and was able to offload before any staff or students arrived on site. Thank you." Vince Perry - The Kingsbrook School
9th March 2026
order - a Used 20ft Container with external Rustic Cladding
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"On the whole the experience was great and they deserve 5 star rating." Bishop Gore School
20th February 2026
order - a Used 20ft Container
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"Thanks very much for a really efficient service. Would recommend your company to anyone. You did what it said on the tin!" Ian
20th February 2026
order - a Used 10ft Container
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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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