Looking to transform a shipping container into a custom workspace, retail unit, or storage solution?
Bosh Boxes specialises in shipping container conversions in the UK, offering structural modifications, custom cut-down containers, and fully bespoke builds designed for practical use.
Whether you need a garden office, site welfare unit, pop-up shop, workshop, or container café, our team can modify new or used shipping containers to suit your project.
From cut-down containers and additional doors to insulation, electrics, and internal layouts, we provide a complete conversion service including design, build, and nationwide delivery.
Bosh Boxes delivers shipping container conversions across the UK, including projects in Essex, Kent, Surrey, London, Norfolk, and nationwide locations.

Shipping containers are increasingly used for conversion projects because they provide a strong steel structure, modular design, and long service life.
Their ISO-standard dimensions make them easy to transport and stack, while the Corten steel construction allows containers to withstand harsh outdoor conditions.
Container conversions are widely used across the UK for:
• garden offices and home workspaces
• site welfare units and construction offices
• pop-up retail shops and cafés
• workshops and tool storage
• gyms, studios, and hobby spaces
Because containers can be cut, modified, insulated, and fitted with electrics, they provide a flexible structure for many different building applications.
As part of our container modification services, we can cut down new or used shipping containers to almost any length.
Many projects require a container that fits a specific space, and cut-down units allow you to achieve the benefits of container storage without the restrictions of standard sizes.
Typical custom sizes include:
– 5ft containers
– 10ft containers
– 12ft containers
– 15ft containers
– 25ft containers
– 30ft containers
Cut-down containers are typically created from standard or high cube 20ft and 40ft container stock.
All modifications include:
– Clean professional steel cutting
– Fully re-welded structural sections
– Weather-sealed seams
– Repainted finish in your chosen colour
– Adjusted flooring and door configuration
These containers are ideal for tight access areas, gap-fill storage, bespoke conversions, or sites where a full-size container will not fit.



Popular Container Conversion Options
Our container conversion services can include a wide range of modifications depending on the intended use of the container.
Common upgrades include:
– Additional cargo doors or steel personnel doors
– Windows with secure anti-vandal shutters
– Electrical installations including lighting, sockets, and heating
– Insulation and ply lining for temperature control and comfort
– Partition walls and internal storage shelving
– Plumbing installations for toilets, sinks, and showers
– External repainting in any RAL colour
These upgrades allow containers to be adapted for commercial, industrial, and domestic use while maintaining the structural strength of the container.
Our container conversions UK service has delivered:



We convert both new one-trip containers and used shipping containers, depending on the project requirements.
New (One-Trip) Containers
These are ideal for customer-facing projects such as cafés, retail units, and offices where appearance and lifespan are important.
Used Containers
Used containers are a cost-effective option that are externally refurbished and structurally inspected before any modifications are carried out.
Every converted container is supplied with a wind and watertight guarantee:
– 12 months on used containers
– 5 years on new one-trip containers
Our container conversion service includes the entire process from design to delivery.
We handle:
– Bespoke design and planning
– Structural container modifications
– Professional RAL colour repainting
– UK-wide HIAB delivery and installation
Before building your container conversion, we help confirm:
– The correct container size
– Delivery access requirements
– Colour and external finish
– The safest delivery and placement plan
You’ll work with a single point of contact from start to finish, ensuring the project runs smoothly without dealing with multiple suppliers.
Selecting the correct container size is one of the most important decisions when planning a conversion project.
The most commonly used container sizes include:
10ft Containers
Ideal for compact garden rooms, kiosks, or secure storage units where space is limited.
20ft Containers
The most popular container size for conversions. Suitable for offices, workshops, cafés, and retail spaces.
40ft Containers
Best suited to large conversion projects where uninterrupted internal space is required.
Our team can help you determine the best container size and layout for your project before any modifications begin.
We deliver custom converted shipping containers across the UK, with flexible delivery options to suit your site access and equipment.
Choose from:
– HIAB delivery (lorry-mounted crane offload for precise placement)
– Flatbed delivery (customer offload using forklift or site equipment)
Before delivery, our team will confirm:
– Site access requirements
– Preferred offload method
– Container drop direction and placement
Need help checking your access?
See how to Measure Delivery Access For a Shipping Container Delivery



Need a Container? We’ll Keep It Easy.
Call us on 01375 503890 or email sales@boshboxes.store for a quick, no-nonsense quote — delivery included anywhere in the UK.
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Explore our full range of shipping containers for sale UK — from secure steel storage containers to refrigerated units, 20ft and 40ft sizes, plus custom builds — all available nationwide.
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