GlossaryEN1 min readUpdated: Jun 12, 2026

container stack

A container stack is an organized vertical or offset arrangement of two or more ISO containers – stacked directly atop one another or interlocked – to maximize terminal or vessel space.

Last updated: 12 June 2026Published: 27 January 2026

Source: https://en.wikipedia.org/wiki/Container_terminal

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A container stack is an organized vertical or offset arrangement of two or more ISO containers – stacked directly atop one another or interlocked – to maximize terminal or vessel space. Each container class has defined stacking height limits: standard 40-foot units typically withstand four to five high; 20-foot units reach nine high. These limits reflect box strength, weight distribution, and locking-cone capacity. Proper stacking geometry ensures stability during mechanical handling (ship-to-shore cranes, reach stackers) and prevents cargo damage or safety incidents. Improper stacking costs time, cargo, and reputation.

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