What shape are the holes in the standardized corner castings where
Chapter 1

The chaos of break-bulk shipping

Chapter 2

The design of the perfect box

Chapter 3

The standard that changed everything

Chapter 4

The modern giant of global trade

YOUR GOAL

Master of How a humble steel box reshaped the globe

Ch 2 · The design of the perfect box
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007skaty The engineering of corrugated steel walls on shipping containers.

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007skaty The Folding Cardboard Box

One press rule slip, cut and fold in a zip, now the flat box can ship!

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We endure pressure by distributing the weight, not by being solid.

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007skaty Corten steel uses a unique weathering process to protect its inner metal.

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The corner castings that bear the weight

007skaty Welded hollow steel blocks transfer crushing downward weight directly through vertical corner posts to keep heavy stacks stable.

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The secret of Corten steel

007skaty Neon graphics flash across a textured sheet of weathered, rusty Corten steel.

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The design of the perfect box
BETA

007skaty Fold and assemble cardboard templates to discover how engineering makes the perfect shipping box.

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Fun Fact

Self-healing rust: If a shipping container's Corten steel gets scratched, the exposed metal reacts with air and moisture to grow a new layer of protective rust, healing itself.

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Glossary
unboxing (noun)
The act of removing a newly purchased product from its packaging, typically filmed and shared on social media. Apple designers tested hundreds of prototype containers in a secret Cupertino room to optimize this customer experience.

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Gossip

Would you live in a shipping container home?

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Quiz

What shape are the holes in the standardized corner castings where twist-locks and crane hooks engage?

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007skaty Heavy steel corner castings support the weight of stacked shipping containers.

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Quiz

Which three alloying metals are added to Corten steel to give it its unique weather-resistant properties?

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007skaty The twist-lock mechanism that secures shipping containers together

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Quiz

Up to how many fully loaded shipping containers can be safely stacked on top of each other using corner castings?

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Quiz

What type of specialized weathering steel is used to build modern shipping containers to prevent deep rusting?

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Quiz

Who was the brilliant mechanical engineer who designed the corner castings and twist-lock systems for shipping containers?

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Quiz

What did Keith Tantlinger and Malcom McLean do with their valuable corner casting and twist-lock patents in 1963?

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Quiz

Why are the steel walls of shipping containers designed with a wavy, corrugated pattern instead of being flat?

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Quiz

What mechanical action is required to lock a twist-lock coupler inside a container's corner casting?

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