A shipping container changed manufacturing
How a standard box rearranged where things get made.
A shipping container changed manufacturing by turning the physical business of moving a finished good from one place to another into a routine, predictable, almost unskilled mechanical operation, which meant a factory no longer had to sit near its customers, its port, or even its own country to compete, only near cheap land, cheap labour, and a connection to the container network that could carry whatever it made anywhere in the world for a cost too small to weigh heavily on where to build.
Moving house with matching boxes
Anyone who has moved house using a set of matching cardboard boxes, instead of an assortment of holdalls, bin bags and loose furniture, has felt a milder version of the effect. With boxes of one size, every item disappears behind the same rectangular shape, and the people lifting develop a single routine without needing to know what is inside. A jumble of oddly shaped bags turns every item into its own small problem, wedged into the van by feel, because nothing learned from one item says anything useful about the next.
Corner castings that ignore the cargo
Before the container, freight travelled as break bulk cargo: every sack, crate, barrel and loose parcel arrived at the dock as an individual object differing in size, weight, shape and fragility, and each had to be judged and manhandled into place by someone who had learned over years how to grip, stack and wedge it. The work was slow because no two items behaved alike, and a ship loaded that way spent far more time sitting still being packed by hand than carrying anything anywhere. A dock gang could take the better part of a week to turn a vessel around.
The container removed the variety itself. It replaced every shape freight could take with one steel box built to a few standard sizes, fitted at each corner with an identical casting that a crane, a lorry chassis or a railway wagon locks onto in the same motion whatever is inside. A crane operator never needs to know whether a box holds machine parts or furniture, because everything variable about the cargo has been pushed inside, away from the handling equipment, and a comparable cargo can be unloaded and reloaded in about a working day. Containerization is the general name for that shift, and Levinson's The Box argues at length that this one change in the interface between cargo and equipment did more to reorganise where factories sit than any improvement made inside factories over the same period.
When transport stops deciding where factories go
Once moving goods became routine and cheap whatever the goods were, transport stopped being a serious constraint on where a factory could sit, and land, labour and proximity to raw materials took over as the deciding factors. A component no longer had to be made near where it was assembled, nor an assembly plant near where its output was sold, because the network moved a box of components and a box of finished goods in exactly the same way. Manufacturing spread around the world because the cost and uncertainty of moving what factories made collapsed far enough that geography dropped out of the decision.
The box has its limits. Oil, coal, grain and ore move as continuous flows, so a container built to standardise discrete items offers them nothing. A site still needs workable energy costs, a skilled workforce and a regulatory environment the business can operate under, and a location that fails on those grounds has simply lost transport as its excuse.