Tolerance stacking was a huge lesson: each small deviation compounds throughout assemblies, so store drawings define spaces

https://garrettfvii322.trexgame.net/the-truth-in-the-patina-why-customized-finials-in-copper-are-the-architect-s-time-tested-choice

Resistance stacking was a large lesson: each small variance compounds throughout settings up, so shop drawings specify spaces, shims, and slot sizes to guarantee an excellent site fit.