There’s a famous maxim in construction, “Measure twice, cut once.”
The unstated assumption is that you will cut straight. Otherwise it doesn’t matter how many times you measure. This came home powerfully today while making a wood box for work. The top and bottom are supposed to be 18” x 18”. In reality, no side has the same measurement, and the top is different than the bottom. In short, there should be one dimension occurring eight times, but I have eight dimensions once each. There’s joy in consistency. Or so they say.
