Precision that you can cut

A measurement of 47.03125″ is not helpful if your saw and tape resolve to sixteenths. Rounding to the nearest 1/16 keeps cut lists human.

Pick a rule and stick to it

  • Nearest for general finish work
  • Up when material must never be short
  • Down when fit must clear a tight opening

Lock it in the calculator

Set precision in Fraction Calculator: Quick Tap before you run the whole list so every result speaks the same tape language. Pair with PlumbSync when level checks matter on the same install.