Plastics Extrusion - Pipe, Film & Profile worked example

Film Gauge Yield at 99% target gauge yield: a worked example

Push target gauge yield up to 99% and the picture changes. This example computes every intermediate figure at that operating point. Use it when quality and production teams need a fast gauge yield check for blown film, cast film, or sheet extrusion.

The inputs for this scenario

  • Accepted in-gauge footage: 47,000 ft (unchanged)
  • Total footage produced: 50,000 ft (unchanged)
  • Target gauge yield: 99 % (raised for this scenario; the documented default is 96)

Working through the calculation

  • Applying the documented formula (Film Gauge Yield = accepted in-gauge footage รท total footage produced) to the inputs above produces each figure below.
  • At this operating point the engine returns 94 % for film gauge yield, the number this scenario is built around.
  • At this operating point the engine returns 5 points for gauge yield gap.
  • At this operating point the engine returns 47,000 count for accepted footage.
  • At this operating point the engine returns 50,000 count for total footage produced.

How this compares with the baseline

  • Against the tool's baseline example, where target gauge yield sits at 96% and the headline result is 94 %, this scenario lands almost exactly on the baseline at 94 %.
  • It divides accepted in-gauge footage by total footage produced to give the gauge yield percent, then subtracts that from your target to show the gap in points. 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

  • Film gauge yield: 94 % (headline result)
  • Gauge yield gap: 5 points
  • Accepted footage: 47,000 count
  • Total footage produced: 50,000 count

Run it with your numbers

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

Last reviewed 2026-05-12.