Why is the container 2.44×2.59 m: a standard that has been "adjusted" to roads, railways and ports
The size of the container is not a "historical accident", but an engineering compromise for the global infrastructure. The width of 2,438 m and height of 2,591 m are fixed by ISO standards, so that the container can pass the sea, port, railway and road equally confidently without special permits. And the 20/40-foot lengths are the math of docking so that the fasteners and corner points match during transportation and stacking. As a result, containerization has made logistics cheaper not by magic