Self Storage with Containers: Why 20ft Double-Door Units Are the Smart Choice

The self-storage industry is booming—and container-based storage is at the heart of this growth. Whether you're a business owner, homeowner, or storage operator, shipping containers offer flexible, secure, and scalable solutions. Among the top-performing units? The 20ft double-door container, often split into two 10ft compartments with a central partition wall.

In this guide, you’ll learn:

• What container self-storage is
• Why double-door 20ft containers are so effective
• Who uses them—and how
• FAQs and expert insights to help you get started

What Is Container Self Storage?

Container self-storage refers to the use of shipping containers as individual storage units for personal or commercial use. They are:

• Modular and mobile
• Weather-resistant and secure
• Easy to install and manage

Instead of constructing expensive warehouse buildings, operators can quickly set up a container-based storage park with minimal investment.

Why 20ft Double-Door Containers Are a Game-Changer

While standard 20ft containers offer ample space, double-door units unlock additional advantages:

1. Divided Into Two 10ft Units - Dual Access, Double Revenue

• A steel partition wall creates two separate, lockable compartments
• Each side has its own secure double doors
• Perfect for serving two customers per container – double the income, same footprint

2. Higher Revenue Per Unit

• Two tenants per container = more efficient use of space
• Ideal for sites with limited land but high demand

3. Greater Customer Flexibility

• Tenants who only need 10ft (rather than 20ft) pay less
• More affordable options = higher occupancy rates

4. Faster ROI for Operators

• Higher turnover, lower entry costs compared to traditional storage units
• Rapid setup means you can go from delivery to business within days

How These Units Are Used

Private Use

• Homeowners store tools, bikes, garden equipment, seasonal items
• Great for renovation or relocation periods

Business Use

• Trader store materials, equipment, or documents
• Online retailers use them for inventory or returns
• Offices archive files offsite in a secure, accessible location

Storage Site Operators

• Ideal for launching low-overhead self-storage businesses
• Easy to scale: add more double-door units as demand grows
• Some operators paint each side in different colors to identify separate clients

Frequently Asked Questions (FAQ)

How big is a 20ft double-door container?

It’s the same size as a standard 20ft container (approx. 6m long), but split into two 10ft compartments, each with a double-door entry.

Are they weatherproof?

Yes, all our containers are 100% wind- and waterproof, made from Corten steel, and include optional features like Lockbox for added security.

Do I need planning permission?

It depends on your location. For short-term use or temporary installations, often no permit is needed. Check with your local authority to be sure.

Can I customize the container?

Yes! We offer:

• Easy-Open doors (already included)
• Custom RAL color coating
• Lockboxes (already included)
• Shelving, lighting, insulation and more

Where can I install them?

Anywhere with a level surface and truck access—from backyards and farms to business parks and urban plots.

Expert Tips for Getting Started

• Start small, scale fast – even 5–10 units can launch a profitable site
• Use High Cube models if extra height is needed
• Offer flexible rental terms to attract a wide customer base
• Market to tradespeople and growing families—they’re top users
• Choose a supplier who delivers, installs, and offers custom options

Conclusion: Double-Door 20ft Containers = Double the Potential

If you're considering launching or expanding a storage business—or just need a practical storage solution—20ft double-door containers are a smart, flexible, and profitable choice. Dividing one container into two units doubles your rental potential without increasing space or cost.

Want to learn more or get a quote?

Contact our team today—we deliver across Germany and Danmark and offer full support from planning to installation.