Contract Manufacturing, Job Shop Quoting & Make-to-Order worked example

Job Shop Quote at 59% practical shop availability: a worked example

This worked example runs the job shop quote numbers for a tougher week than the baseline: 59% practical shop availability instead of the typical 82%. Estimate quoteable job-shop capacity for a custom part RFQ or make-to-order lot.

The inputs for this scenario

  • good parts per production slot: 18 parts / slot (held at the documented default)
  • available production slots in the quote window: 24 slots (held at the documented default)
  • practical shop availability: 59 % (the input this scenario stresses; the baseline uses 82)
  • quoted first-pass yield: 96 % (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Gross quoted part capacity = good parts per production slot × available production slots in the quote window.
  • quoteable good parts capacity works out to 245 parts at these inputs, and this is the headline figure for the scenario.
  • gross quoted part capacity works out to 432 parts at these inputs.
  • parts lost to unavailable shop time works out to 177 parts at these inputs.
  • parts lost to scrap and rework works out to 10.2 parts at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where practical shop availability sits at 82% and the headline result is 340 parts, this scenario comes in 28.05% below the baseline at 245 parts.
  • Use it during quoting and capacity planning to set a realistic deliverable quantity and lead time for a make-to-order job. 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

  • quoteable good parts capacity: 245 parts (headline result)
  • gross quoted part capacity: 432 parts
  • parts lost to unavailable shop time: 177 parts
  • parts lost to scrap and rework: 10.2 parts

Run it with your numbers

  • To rerun this with your own numbers, open the live Job Shop Quote calculator, set practical shop availability to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.