Boxtor had the recent pleasure of supplying a large UK based container self-storage provider with our bespoke, factory made multidoor (multi storage compartment) units. After meeting this company at the Self Storage Association UK Conference 2025 in Telford (where Boxtor displayed its double stacked shipping containers and bespoke galvanised staircases and landings), the storage firm placed a bespoke factory order for 2 x 20ft multidoors in RAL 6007 bottle green, to match the existing 20ft containers they already had at their site.
The 20ft 4 door type (4 x individual storage compartments which offer 40 sq ft individual storage units/ lockers) is one of our most popular sizes/ specifications that we supply to the UK market, specifically with the self storage sector in mind.
For our valued client here, a wagon and drag (rigid HIAB crane lorry with draw bar trailer) was used to deliver the units and safely offload them on site.
Our client was very pleased with the specification and quality of the 20ft 4 door multidoors supplied and have ordered additional units in a different paint colour to be supplied and delivered to another site of theirs! Thank you for their custom
The Specification for the Multidoor Containers
The containers which was ordered came with the following specification:
Lead TImes
As they are made to order, they usually carry around a 13-14 week lead time from confirmed order to delivery on site.
Did you Know
These units are ‘shipped empty’, without cargo inside them as the steel divider walls and lack of cargo doors on the ends means they are freighted empty to the UK, with shipping lines choosing not to load cargo within this type of shipping container.
What does this mean
As they do not carry cargo, the inside walls, paint and flooring will be immaculate as they arrive in the UK in as new condition. Like any shipping container, they may show slight scratches/scuffs on the corner posts etc but we will do our best to touch them up at our depots prior to delivery as we understand appearance is key for our clients.
Multidoor (multi-compartment) shipping containers are a fantastic ROI (Return on Investment) for your self storage business. One shipping container can offer up to EIGHT storage units to rent out to customers at your storage site.
Our Multidoor Containers are available in the following sizes
- 20ft 2 door (2 x 80 sq ft)
- 20ft 3 door (3 x 53.3 sq ft storage units)
- 20ft 4 door (4 x 40 sq ft storage units)
- 40ft 4 door (4 x 80 sq ft storage units)
- 40ft 5 door (5 x 64 sq ft storage units)
- 40ft 6 door (6 x 53.3 sq ft storage units)
- 40ft 8 door (8 x 40 sq ft storage units)







Boxtor - Self Storage Experts
We wholly own and manage our own containerised self-storage facility in Northampton, Alert Self Storage. Established in 1987, our parent company Containental Ltd has been manufacturing shipping containers of all types for the French and UK markets for over 45 years, so we are extremely well versed in the supply of ISO steel shipping containers for many varied markets/ uses.
Self Storage is a key area of supply for our business, both in the UK and France, and we understand the importance of offering various unit sizes & types for your storage customers, as well as just the standard 20ft (160 sq ft) units that make up the core offering of a self storage site.
We manufactured our own multidoor units in 20ft 2-door and 20ft 4-door types (offering 80 sq ft and 40 sq ft unit sizes) and we have them double stacked on various parts of our facility.
If you would like to visit our site and have a look at these units, please do reach out to us and we will be happy to arrange this!
Get in touch for your shipping container needs
Boxtor is widely recognised as the leading UK supplier of multi-door (multi-compartment) shipping containers of all types and sizes for the self-storage market. These are available for purchase or lease purchase* to storage businesses across the UK.
Please do get in touch with our friendly team of experts today, and we will be very happy to assist you with your container requirements.