Trade · 6 pages · 12 min

How ISO container sizes made the box obvious

Standard lengths and corner fittings let the same freight box move among ships, trucks, and cranes without being unpacked.

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From the opening

ISO freight-container standards fix outside lengths, corner fittings, and strength requirements for the box. Once those match, a crane, a ship's cell, a truck chassis, and a rail car can all handle that same box. The opening covers corner fittings match the crane, ship cells match the lengths, and cargo stays sealed inside the box.

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Inside

Corner fittings match the crane
Ship cells match the lengths
Cargo stays sealed inside the box
Nonstandard boxes fall outside
Where the idea stops applying
A distinction worth keeping

Sources

ISO freight container standards
Intermodal corner castings

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How ISO container sizes made the box obvious

From the opening

Inside

Sources

Also on the desk