Sterilization & Sterile Barrier Manufacturing worked example

Cleanroom Utilization at 61% target cleanroom utilization: a worked example in sterilization & sterile barrier manufacturing

This worked example runs the cleanroom utilization numbers for a tougher week than the baseline: 61% target cleanroom utilization instead of the typical 85%. Measure cleanroom utilization for Sterilization & Sterile Barrier Manufacturing — hours in use as a percentage of hours available.

The inputs for this scenario

  • Cleanroom production hours logged: 320 hr (held at the documented default)
  • Cleanroom scheduled available hours: 400 hr (held at the documented default)
  • Target cleanroom utilization: 61 % (the input this scenario stresses; the baseline uses 85)

Working through the calculation

  • The calculation starts from the formula this tool documents: Utilization = hours in use ÷ hours available.
  • Utilization works out to 80 % at these inputs, and this is the headline figure for the scenario.
  • Gap to target works out to -19 points at these inputs.
  • Used amount works out to 320 value at these inputs.
  • Available amount works out to 400 value at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where target cleanroom utilization sits at 85% and the headline result is 80 %, this scenario lands almost exactly on the baseline at 80 %.
  • Use it in weekly or monthly capacity reviews to decide whether to add shifts, consolidate rooms, or defer a costly cleanroom expansion. A result at this level usually justifies acting on the stressed input before touching anything else, because every other figure in the table is downstream of it.

Results at a glance

  • Utilization: 80 % (headline result)
  • Gap to target: -19 points
  • Used amount: 320 value
  • Available amount: 400 value

Run it with your numbers

  • To rerun this with your own numbers, open the live Cleanroom Utilization calculator, set target cleanroom utilization to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.