20ft Containers for Sale
For secure storage and shipping
Key Benefits of 20ft Containers
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20ft (6m) length suitable for business sites and homes with limited space.
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33m³ capacity provides plenty of space for goods and personal effects.
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Standardised dimensions compatible with international shipping requirements.
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Corrosion-resistant Corten steel protects contents from harsh ocean conditions.
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Wide range of second-hand containers and special units, with modification services available.
20ft shipping containers offer ample storage space with a compact footprint: an ideal option for homes and businesses with size limitations. 20ft containers are also a standard dimension compatible with international shipping infrastructure, making them suitable for transporting cargo by sea or rail.
SEA Containers NZ provides high-quality 20ft shipping containers at over 50 depots across the North Island, South Island, and Pacific Islands. Our 20ft containers are structurally sound, secure, and fully weatherproof.
We supply both standard and specialised 20ft container types, including reefer, flat-rack, and side-opening. For an even more cost-efficient self-storage option, check out our second-hand shipping containers.
Fill out our Instant Quote Form or call 0508 732 266.
Types of 20ft Shipping Containers for Sale

Standard 20ft Shipping Containers
Suitable for general use, equipment, merchandise, and household items.

High-Cube 20ft Shipping Containers
Same length and width with 30 cm extra height for larger goods.

20ft Refrigerated Shipping Containers
'Reefers' can be set to temperatures from -20°C to +18°C for moving perishable foods.

20ft Dangerous Goods Shipping Containers
Ventilation, special flooring, and safety features for securely moving hazardous materials.

20ft Side-Opening Shipping Containers
Easy access for heavy goods or unusually shaped equipment and stock.

20ft Open-Top Shipping Containers
For moving or accessing oversized goods easily. High-cube models are available.

20ft Insulated Shipping Containers
Foam-filled walls keep sensitive goods at consistent ambient temperatures.

20ft Flat-Rack Shipping Containers
Fixed or collapsible end walls allow for easy unloading.
New and Used 20ft Shipping Containers
A-Grade Containers
Virtually pristine, single-trip containers. Ideal for high-end modifications and sensitive storage.
B-Grade Containers
Thoroughly inspected, providing excellent value without compromising structural integrity.
C-Grade Containers
Sold ‘as-is’, often with previous repair patches. Affordable storage for agricultural, industrial, and personal use.
Container Modification Services
Do you need a portable building or storage space on a budget? We offer container modification services across New Zealand. Our modification options include:
- Custom-sized shipping containers
- Doors, windows, lights, insulation, ventilation, and more
- Container conversions for construction, retail, and home
- Containers branded with your logo and company colours
Additional Information
- 20ft containers can store around 10 pallets (enough to pack up the average 3-bedroom home). See our full 20ft container dimensions page for more sizing information.
- We will deliver your container with a HIAB truck or swinglift.
- If you’re looking for a temporary storage option, ask about 20ft shipping container hire for short- or long-term use.
Why Choose SEA Containers?
- Wide container range: Choose the best size, height, and grade for your use case.
- Custom modifications: We can customise your container to exactly fit your needs.
- Competitive pricing: We offer industry-leading value, quality, and durability.
- Dedicated customer support: Our team is based in New Zealand and ready to help.
- Flexible options: Buy or hire the container size of your choice.
- Reliable delivery: Enjoy quick delivery anywhere in New Zealand or the Pacific Islands.
Customer Testimonials
How to Get Started
1. Consultation
We assess your intended use, location, and timeframe requirements.
2. Container Selection
Our specialists advise on the right container type for you.
3. Quality Assurance
Comprehensive inspection ensures structural integrity before delivery.
4. Delivery
Our logistics team arranges container placement according to your specifications.
5. After-Sales Support
We provide practical maintenance guidance to maximise the lifespan of your container.
Get a Quote for Your 20ft Storage Container
SEA Containers has earned recognition from prominent business authorities, having been named in the prestigious 2022 Master of Growth Index by Deloitte Fast 50 for its exceptional operational expansion and market development across New Zealand.
Our specialists are standing by to understand your needs and recommend the perfect solution.
Ready to explore container solutions for your storage or shipping requirements? Visit our container depots for personal inspection or call 0508 732266 today. Alternatively, fill our Instant Quote Form online.
Frequently Asked Questions
A standard 20ft container can hold up to 25,400 kilograms.
With 38 cubic metres of space, these containers typically accommodate the contents of a 3-bedroom house, 200+ standard pallets, or substantial commercial equipment and inventory.
Absolutely. We handle everything from basic container modifications to full custom fit-outs for offices, retail, specialised storage, and accommodation.
Yes, we deliver containers throughout New Zealand and the Pacific Islands. We use an HIAB truck or swinglift, depending on your site.
Our containers offer exceptional security through robust steel construction and reinforced door systems, and optional lockboxes and alarms.








