Length & distance

Millimetres, centimetres and inches in both directions, including the sixteenths a steel tape is graduated in rather than the decimals a drawing carries; feet against inches; feet and metres; metres and yards; kilometres and miles for the travel and haul distances that sit at the top of a bill.

Whether you need a fraction or a decimal, and that is not a formatting preference. A joiner works to the marks on the blade, so 38.1 mm has to become an inch and a half before anybody can cut to it, and a decimal that rounds to the nearest sixteenth is a cut that binds in the opening. The pages that return fractions say which denominator they rounded to; the ones that return decimals say how many places are real.

Anything squared or cubed, and the setting out of a line on the ground rather than the measuring of one.