Metals, Steel, Aluminum & Coil Processing worked example

Gauge Variation with highest gauge reading of 0.16 in: a worked example

Push highest gauge reading up to 0.16 in and the picture changes. This example computes every intermediate figure at that operating point. Use it when a quality manager is auditing thickness readings against the gauge tolerance band on a coil or sheet lot.

The inputs for this scenario

  • Highest gauge reading: 0.16 in (raised for this scenario; the documented default is 0.06)
  • Lowest gauge reading: 0.06 in (unchanged)
  • Nominal gauge target: 0.06 in (unchanged)

Working through the calculation

  • Applying the documented formula (Gauge range = highest gauge reading - lowest gauge reading) to the inputs above produces each figure below.
  • At this operating point the engine returns 0 % for gauge spread, the number this scenario is built around.
  • At this operating point the engine returns 0 value for spread.
  • At this operating point the engine returns 0.16 value for minimum.
  • At this operating point the engine returns 0.06 value for maximum.

How this compares with the baseline

  • Against the tool's baseline example, where highest gauge reading sits at 0.06 in and the headline result is 0 %, this scenario lands almost exactly on the baseline at 0 %.
  • It computes the gauge spread between the highest and lowest readings and the deviation of the readings' midpoint from the nominal gauge target. The value of this scenario is the size of the gap it exposes: that gap, priced out over a year, is the budget you can justify spending to close it.

Results at a glance

  • Gauge spread: 0 % (headline result)
  • Spread: 0 value
  • Minimum: 0.16 value
  • Maximum: 0.06 value

Run it with your numbers

  • Every input above is editable in the live Gauge Variation calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.