Gypsum, Drywall & Interior Panel Manufacturing worked example

Defect Cost at 92% quality cost capture rate: a worked example in gypsum, drywall & interior panel manufacturing

Push quality cost capture rate up to 92% and the picture changes. This example computes every intermediate figure at that operating point. Use it at a quality cost review to quantify the cost of non-conforming boards and build a business case for a defect reduction investment.

The inputs for this scenario

  • Defective boards: 100 boards (unchanged)
  • Rework or scrap cost per board: 45 $ / board (unchanged)
  • Quality cost capture rate: 92 % (raised for this scenario; the documented default is 80)
  • Fixed quality overhead: 250 $ (unchanged)

Working through the calculation

  • Applying the documented formula (Variable defect cost = defective boards x rework or scrap cost per board x quality cost capture rate) to the inputs above produces each figure below.
  • At this operating point the engine returns 4,390 $ for weighted cost, the number this scenario is built around.
  • At this operating point the engine returns 43.9 $ / piece for per piece value.
  • At this operating point the engine returns 4,140 $ for captured value.
  • At this operating point the engine returns 250 $ for fixed adjustment.

How this compares with the baseline

  • Against the tool's baseline example, where quality cost capture rate sits at 80% and the headline result is 3,850 $, this scenario comes in 14.03% above the baseline at 4,390 $.
  • It multiplies defective boards by per-board rework or scrap cost and a capture rate for variable cost, then adds fixed quality overhead for a total dollar figure. 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

  • Weighted cost: 4,390 $ (headline result)
  • Per piece value: 43.9 $ / piece
  • Captured value: 4,140 $
  • Fixed adjustment: 250 $

Run it with your numbers

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

Last reviewed 2026-05-12.