Shipping Container Dimensions and Sizes: The Complete Guide

Shipping container dimensions are one of the few things in this industry you can rely on completely. Because containers are built to the international standard ISO 668, a 20 ft box made in any factory in the world has the same footprint, the same corner fittings, and stacks on any other. This guide gives you the full set of shipping container sizes in one master table, explains the difference between exterior and interior measurements, and helps you pick the right size and confirm it will actually fit on your property.

Shipping Container Dimensions: The Master Table

Interior figures and weights vary slightly by manufacturer and build year, so treat interior dimensions, tare, and payload as close approximations. Exterior dimensions are standardized.

Exterior vs interior: why you lose about 4 inches each way

The walls are corrugated steel, the floor sits on steel cross-members topped with a wood or bamboo floor, and the ceiling has structural framing. Together that eats roughly 4 inches of width, 6 inches of length, and 8 inches of height compared to the outside measurements. If you are planning shelving, equipment, or a vehicle, always work from the interior column and the door opening, not the exterior numbers.

The door opening is the real gatekeeper

Nothing goes in that does not fit through a 7 ft 8 in wide opening. Height at the doors is 7 ft 6 in on standard containers and about 8 ft 5 in on high cubes. Measure your largest item against the door opening first.

High Cube vs Standard: One Foot That Matters

A high cube (HC) container is 9 ft 6 in tall outside instead of 8 ft 6 in, which gives you an interior ceiling around 8 ft 10 in. For pure storage of boxes and tools, standard height is fine. For anything a person works or lives inside, a workshop, an office, a home conversion, that extra foot is the difference between a ceiling that feels like a building and one that feels like a box, especially once insulation and finishes take a few inches back. As of 2026 the high cube premium is typically modest, and most 40 ft production is high cube anyway.

Which Size for Which Use

• 10 ft: tight urban lots, tool sheds, small equipment. See our 8 and 10 ft containers.
• 20 ft: the default for household storage, job sites, and single-vehicle storage. Roughly the contents of a two to three bedroom home. Browse 20 ft containers.
• 40 ft: best cost per square foot; farm and commercial storage, large workshops. Browse 40 ft containers.
• 40 ft HC: the standard platform for offices, cabins, and home conversions.
• 45 ft HC: maximum single-box space when your site can take the length.

Will It Fit My Driveway? Quick Delivery Math

Containers arrive on a tilt-bed truck that backs in and slides the box off the rear. Rules of thumb that hold for most deliveries:

• Straight-line clearance: about 75 to 100 ft for a 20 ft container, and 100 to 130 ft for a 40 ft, measured in a straight run including the truck.
• Width: at least 12 ft of clear path for the truck.
• Overhead: roughly 14 ft en route and up to about 20 ft where the bed tilts, so watch wires and branches.
• Ground: firm and reasonably level. Trucks sink in soft ground, and a container on a slope racks its doors.

Every AnchorBox order includes free delivery and placement in all 50 US states through our regional depot partners, and we confirm site access before dispatch. If you are not sure your site works, call (509) 575-1198 with rough measurements and we will tell you straight whether a 40 ft is realistic or a 20 ft is the smarter call. You can compare all footprints side by side in our shipping containers catalog.

Frequently Asked Questions

Are all shipping containers exactly 8 ft wide?

Standard ISO dry containers are 8 ft wide outside, with about 7 ft 8 in usable inside. Wider units exist for specialty uses, but anything sold as a standard 10, 20, 40, or 45 ft container will be 8 ft wide.

How tall is a high cube container?

A high cube is 9 ft 6 in tall outside, one foot taller than a standard container, with an interior ceiling of roughly 8 ft 10 in and a door opening around 8 ft 5 in high.

How much does an empty shipping container weigh?

Tare weight is approximately 4,850 lb for a 20 ft, 8,250 lb for a 40 ft standard, and 8,750 lb for a 40 ft high cube, varying a bit by manufacturer. That weight is why placement is a truck job, not a forklift-at-home job, and why we include professional placement with delivery.