Custom 20ft/40ft Shipping Container – Insulated w/ Electric & Door – Ready to Go!
This Custom 20ft or 40ft Shipping Container is a modified storage unit, designed for immediate use. It features comprehensive insulation, an integrated electrical system, and a manufactured door for secure access. This unit is constructed from a high-tensile steel framework and is suitable for on-site storage requirements across various sectors . It is delivered as a ready-to-use solution for your property or job site .
Key Features
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Comprehensive Thermal Insulation: The container is constructed with a 100mm thick polyurethane insulation layer within the walls, roof, and floor. This closed-cell foam is manufactured with a density of 45kg/m³, providing a high total heat transfer coefficient to maintain stable internal temperatures .
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Integrated Electrical System: Pre-wired with an electrical sub-panel and internal lighting. The system is designed for standard 220V/380V power supply, allowing for immediate connection to a local power source upon delivery .
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Manufactured Access Door: Includes a manufactured steel door fitted within the container frame, providing secure entry. The door frame is made of carbon steel with a protective spray-paint finish, and the hinge system is constructed from aluminum alloy .
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Durable Construction: The primary structure is built from a steel frame with a pre-coated white aluminum plate for the outer skin. The interior surfaces are lined with a food-grade thermoplastic plate, which is non-porous and easy to clean .
Detailed Description
This shipping container has been modified from a standard ISO unit to serve as a secure, weather-resistant shelter. To achieve effective climate control, the modification process uses a one-time foaming, overall molding technique to apply the polyurethane insulation . This method ensures a continuous thermal barrier without gaps, significantly reducing temperature transfer.
The electrical system is installed to offer immediate functionality. It is configured to support lighting and power outlets, making the unit suitable for use as a field office, workshop, or secure storage for temperature-sensitive materials . Upon connection to a local power supply, the internal lighting and power points are operational .
Access is provided by a manufactured door, fitted with exposed carbon steel galvanized lock bars for security . The door hardware is designed for durability and frequent use. A drainage system, including two holes at the front and back fitted with rubber seal plugs, is incorporated into the floor design to manage internal moisture, and the aluminum floor profile facilitates easy cleaning . This unit is built for a long service life, utilizing materials selected for their resistance to corrosion and wear .
Technical Specifications
| Specification | 20ft Container | 40ft Container |
|---|---|---|
| External Dimensions (LxWxH) | 6058 x 2438 x 2896 mm | 12192 x 2438 x 2896 mm |
| Internal Dimensions (LxWxH) | 5818 x 2224 x 2576 mm | 12084 x 2350 x 2449 mm |
| Insulation Thickness | 100 mm (Polyurethane) | 100 mm (Polyurethane) |
| Door Opening (WxH) | 5700 x 2776 mm (approx.) | 11840 x 2776 mm (approx.) |
| Structural Material | Carbon Steel Frame / Aluminum Plate Skin | Carbon Steel Frame / Aluminum Plate Skin |
| Interior Lining | Food-Grade Thermoplastic Plate | Food-Grade Thermoplastic Plate |
| Electrical Supply | 220V / 380V | 220V / 380V |
Compatibility / Intended Use
This container is designed for use as a secure, dry, and climate-managed storage space. It is suitable for construction sites needing material storage, agricultural applications for equipment shelter, or as a workshop space. It can also function as a temporary retail kiosk or site office when placed on private property.
Package Includes
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(1) Custom 20ft or 40ft Insulated Shipping Container
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(1) Integrated Electrical System with Internal Lighting
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(1) Manufactured Steel Access Door with Locking Bars
20ft insulated container for sale: secure nationwide UK supply
If you are comparing a 20ft insulated container for sale, this Custom 20ft/40ft Shipping Container – Insulated w/ Electric & Door – Ready to Go! offers a practical option for secure storage, transport or a planned conversion. Nelsons Shipping Containers supplies customers throughout the UK, with delivery arrangements discussed before ordering so access, positioning and offloading requirements can be considered.
Why choose this 20ft container?
A 20ft unit is widely chosen because it combines useful capacity with a footprint that suits many commercial, construction, agricultural and domestic sites. Before purchase, consider the intended use, required condition, door configuration, ventilation, security and site access. Our team can help you compare the available options and select a container that fits your project.
Ordering and nationwide delivery
Request a quotation with your delivery postcode and any important site details. We will confirm availability, pricing and the appropriate delivery method. Browse our shipping containers for sale or contact our container specialists for tailored guidance.
Frequently asked questions
Can delivery be arranged across the UK?
Yes. Delivery options depend on the postcode, vehicle access, ground conditions and positioning requirements.
Can I request more information before ordering?
Yes. Contact us for current availability, photographs and specifications for the selected unit.
40ft insulated container for sale with nationwide UK delivery
Choose this 40ft insulated container for sale as a secure and practical solution for storage, transport or conversion projects. Nelsons Shipping Containers supplies customers throughout the UK and can discuss availability, delivery access, positioning and offloading before an order is confirmed.
Benefits of a 40ft container
A 40ft unit provides substantial capacity for commercial, construction, industrial, agricultural and self-storage requirements. Consider the intended use, container condition, door configuration, ventilation, security and site access when comparing options.
Ordering and delivery
Provide your postcode and relevant site details when requesting a quotation. Browse our shipping containers for sale or contact our container specialists for current availability and delivery guidance.
Frequently asked questions
Is nationwide UK delivery available?
Yes. Delivery options depend on the postcode, suitable vehicle access, ground conditions and final positioning requirements.
Can I request product information before ordering?
Yes. Ask our team for available specifications and current product photographs.





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