Freight glossaryContainersInternational Shipping

20-ft Container

Definition

A 20-ft container is a standard shipping container about 20 feet long and 8 feet wide, equal to one TEU, and often used for heavy, dense cargo.

By RapidShips Dock OperationsLast reviewed 2026-09-302 sources

What it means

On one major carrier's published specifications, a 20-ft standard dry container measures 5,896 x 2,350 x 2,393 mm inside, holds about 33 m³ (1,165 cu ft), weighs 2,280 kg empty and can carry up to 28,200 kg.[1] It is the unit behind the TEU, the standard measure of container volume.[2]

The 20-footer carries almost as much weight as a 40-footer in half the space, so heavy goods often fill a 20 by weight long before they fill it by volume; see why heavy cargo ships in 20-ft containers. By floor space it takes 8 standard 48 x 40 in. pallets in one tier, as worked out in container vs. trailer capacity.

Example

An exporter of ceramic tiles books 20-ft containers rather than 40s. The tiles reach the container's weight limit when the box is only partly full, so a 40 would carry little more weight for a higher freight cost.

Sources

  1. Maersk, “Our fleet: equipment specifications, dry containers (PDF),” Carrier equipment specification. Accessed September 30, 2026.
  2. United Nations ESCWA, “TEU (twenty-foot equivalent unit), SD Glossary (Eurostat definition),” Intergovernmental glossary. Accessed September 30, 2026.

General operational information, not legal, customs or regulatory advice. Rules and rates change; confirm current requirements with the agency, carrier or contract that governs your shipment.

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