What size is a shipping container? The two standard lengths are 20 ft and 40 ft, both about 8 ft wide, and the height is 8.5 ft for a standard unit or 9.5 ft for a high cube. Smaller 10 ft and longer 45 ft versions also exist. Queen Container sells many of these sizes, so this guide helps you match the right dimensions to your plan.
What Size Is a Shipping Container? The Standard Dimensions
Exact measurements vary slightly by manufacturer, and interior space is smaller than the outside because of the walls, floor and doors. Use these figures as a general guide.
| Type | Outside | Approx. volume | Empty weight |
|---|---|---|---|
| 20 ft standard | 20 x 8 x 8.5 ft | 1,170 cu ft | About 5,000 lb |
| 40 ft standard | 40 x 8 x 8.5 ft | 2,390 cu ft | About 8,000 lb |
| 40 ft high cube | 40 x 8 x 9.5 ft | 2,700 cu ft | About 8,000 lb or more |
The door opening is narrower than the box, usually a little over 7 ft wide, which matters if you plan to move furniture or equipment through it.
Smaller and Larger Options
If a 20 ft box is too large, 10 ft containers fit tight yards, driveways and rooftops. We offer a 10 ft storage container, and there are even smaller 6 ft and 8 ft units for compact storage. On the other end, 45 ft high cube containers add extra length for oversized loads, though they are harder to deliver and place.
Choosing a Size by Use
- Home storage or garage overflow: a 10 ft or 20 ft unit is usually enough.
- Workshop or contractor storage: a 20 ft box works well and is easy to move.
- Vehicle, boat or large equipment storage: a 40 ft container offers the length.
- Conversions such as an office or tiny home: a high cube gives extra headroom for insulation.
A rough rule is that a 20 ft container holds the contents of a one- to two-bedroom apartment, while a 40 ft container holds much more, depending on how you pack it.
Do You Have Room?
Before you order, measure the space and the delivery route. A 20 ft container needs about 20 ft of length plus room for the truck to maneuver, and a 40 ft container needs much more. Delivery trucks need a firm, level surface and clear overhead space, and the doors need room to swing open fully. Leave a few feet at the door end so you can load comfortably.
Also check local rules. Some neighborhoods and homeowner associations limit containers, so confirm before buying. For a deeper look at the most popular option, read our complete guide to the 20 ft shipping container.
Weight, Wall Thickness and Other Details
Besides length and height, think about weight and structure. Empty weights are about 5,000 lb for a 20 ft unit and about 8,000 lb for a 40 ft unit, and loaded weight depends on the container rating and how you pack it. Corrugated steel walls give strength, and the corner castings are the strong points used for lifting and stacking. If you add heavy shelving or machinery inside, spread the weight evenly.
Next Steps
Once you know what size is a shipping container for your project, browse our 20 ft double door shipping container or compare more options in the storage containers category. For a quote with delivery, share your size and location through the contact page, or explore all shipping containers for sale.
