Gypsum, Drywall & Interior Panel Manufacturing worked example

Board Line Speed at 99% line efficiency: a worked example

This scenario runs the board line speed calculation on the strong side: 99% line efficiency, with every other input held at its documented default. Use it before a production meeting when the board line speed commitment needs to hold up against shift output targets and schedule attainment.

The inputs for this scenario

  • Wallboard panels produced: 1,200 boards (unchanged)
  • Board line shift runtime: 8 hr (unchanged)
  • Line efficiency (uptime factor): 99 % (raised for this scenario; the documented default is 90)

Working through the calculation

  • Applying the documented formula (Raw board line speed = boards produced / shift runtime) to the inputs above produces each figure below.
  • At this operating point the engine returns 149 boards / hr for effective throughput, the number this scenario is built around.
  • At this operating point the engine returns 150 boards / hr for raw throughput.
  • At this operating point the engine returns 99 % for efficiency.
  • At this operating point the engine returns 8 hr for runtime.

How this compares with the baseline

  • Against the tool's baseline example, where line efficiency sits at 90% and the headline result is 135 boards / hr, this scenario comes in 10% above the baseline at 149 boards / hr.
  • Use it for shift reporting, comparing actual line speed to nameplate, or sizing downstream kiln and stacking capacity. Treat this as a target state: the delta against the baseline quantifies what the improvement is worth before you commit to chasing it.

Results at a glance

  • Effective throughput: 149 boards / hr (headline result)
  • Raw throughput: 150 boards / hr
  • Efficiency: 99 %
  • Runtime: 8 hr

Run it with your numbers

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

Last reviewed 2026-05-12.