Wood & Paper Manufacturing worked example

Board Foot Yield at 99% target grade-yield rate: a worked example

Push target grade-yield rate up to 99% and the picture changes. This example computes every intermediate figure at that operating point. Use it when board foot yield in wood and paper manufacturing needs a clean rate and gap-to-target you can put on a tier board.

The inputs for this scenario

  • Boards passing grade: 8 count (unchanged)
  • Total boards run through the mill: 250 count (unchanged)
  • Target grade-yield rate: 99 % (raised for this scenario; the documented default is 95)

Working through the calculation

  • Applying the documented formula (Board foot yield rate = board foot yield count ÷ total board foot yield population × 100) to the inputs above produces each figure below.
  • At this operating point the engine returns 3.2 % for board foot yield rate, the number this scenario is built around.
  • At this operating point the engine returns 95.8 points for board foot yield gap to target.
  • At this operating point the engine returns 8 count for board foot yield count.
  • At this operating point the engine returns 250 count for total board foot yield population.

How this compares with the baseline

  • Against the tool's baseline example, where target grade-yield rate sits at 95% and the headline result is 3.2 %, this scenario lands almost exactly on the baseline at 3.2 %.
  • It computes the percentage of your total board footage that met grade, then subtracts your target rate to show the gap in percentage 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

  • Board foot yield rate: 3.2 % (headline result)
  • Board foot yield gap to target: 95.8 points
  • Board foot yield count: 8 count
  • Total board foot yield population: 250 count

Run it with your numbers

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

Last reviewed 2026-05-12.