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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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"Called in without appointment for advice and to view options. Neil was very obliging and knowledgeable a great help in deciding my best options. Pleased with the container and workmanship. The delivery driver/operator was excellent. Very efficient, experience showed, positioned perfect with no drama." Ray Brotherton - Star Machine Tools Ltd
23rd October 2026
order - a 'Once-Used' 20ft Container
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"Your customer service was first class and we would and will use you again to purchase another container. Your haulier contractor was exceptional and the container that they delivered was fantastic and our client was extremely happy with their purchase, thank you." David Thomas - Equans E&S Solutions Ltd
9th October 2026
order - a 'Once-Used' 20ft Container
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"Fantastic Customer service from getting a quote to the container being delivered. Everyone who I dealt with were wonderful. This is our second container and I would highly recommend to anyone! Cory has been very helpful from start to finish. Your Delivery man is also a credit to you, very pleasant and helpful." Beck Bottom Community Garden Group
1st October 2026
order - a 2m Flat Pack Store Container
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"Fantastic Customer service from getting a quote to the container being delivered, everyone who I dealt with were wonderful. This is our second container and I would highly recommend to anyone! Cory has been very helpful from start to finish. Your Delivery man is also a credit to you, very pleasant and helpful." Beck Bottom Community Garden Group
1st October 2026
order - a 2m Insulated Flat Pack Container Store
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"Superb communications from enquiry to delivery. Special thanks to Ray for pre-delivery communications and to the delivery guys." Wolverton Community Orchard
28th September 2026
order - a 3m Flat Pack Container Store
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"Excellent customer service and support for an urgent enquiry." Faye @ M&R Hydraulics
24th September 2026
order - a Used 20ft Modibox Xtra on our Clearance Page
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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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