Choosing the right container starts with understanding the sizes available. Whether you need compact storage for a garden or a large unit for a commercial site, this guide explains the standard shipping container sizes and dimensions in the UK — inside and out — so you can buy with confidence.
Standard shipping container sizes in the UK
Shipping containers are built to ISO standards, so their external dimensions are consistent worldwide. At UK Container Hub we stock the full range:
- 10ft containers — compact and easy to place in tight spaces
- 20ft containers — the UK’s most popular size for general storage
- 30ft containers — a rare, non-standard middle size
- 40ft containers — maximum capacity for large projects and conversions
10ft container dimensions
External: approximately 3.0m long × 2.44m wide × 2.59m high. Internal capacity is around 15 m³ — ideal for domestic storage, tools and equipment where access is limited.
20ft container dimensions
External: approximately 6.06m long × 2.44m wide × 2.59m high, with around 33 m³ of usable space. The 20ft is the workhorse of the industry — big enough for the contents of a small house, yet compact enough to fit on most driveways and yards.
40ft container dimensions
External: approximately 12.19m long × 2.44m wide × 2.59m high, offering roughly 67 m³ of space. Perfect for large-scale storage, machinery and container conversions.
Standard height vs high-cube containers
Most containers are 8ft 6in tall (“standard” height). High-cube containers add an extra foot of height (9ft 6in / 2.90m), giving valuable headroom for offices, workshops and habitable conversions. If ceiling height matters, choose a high-cube.
How much can each size hold?
As a rough guide: a 10ft holds the contents of a one-bed flat, a 20ft holds a small house, and a 40ft holds a large family home. For temperature-sensitive goods, see our refrigerated containers; for office or welfare space, our portable cabins may suit better.
Which size do you need?
Match the container to the job and the space you have. Still deciding between the two most common sizes? Read our detailed comparison of 20ft vs 40ft containers, or work through our full shipping container buyers guide. When you’re ready, browse all shipping containers for sale or request a free quote — every unit is quality-checked and delivered UK-wide.