Stone, Countertops & Engineered Surfaces worked example

Shop Capacity per Slab at 99% expected saw and cnc uptime: a worked example

Push expected saw and cnc uptime up to 99% and the picture changes. This example computes every intermediate figure at that operating point. Use it when shop capacity per slab in stone, countertops and engineered surfaces is being asked to take on more work and you need to know if there is room.

The inputs for this scenario

  • Finished pieces cut per fabrication cycle: 4 units / cycle (unchanged)
  • Available fabrication cycles in period: 480 cycles (unchanged)
  • Expected saw and CNC uptime: 99 % (raised for this scenario; the documented default is 90)
  • Expected first-pass fabrication yield: 97 % (unchanged)

Working through the calculation

  • Applying the documented formula (Gross shop capacity per slab capacity = shop capacity per slab output per cycle × available shop capacity per slab cycles) to the inputs above produces each figure below.
  • At this operating point the engine returns 1,844 units for good shop capacity per slab capacity, the number this scenario is built around.
  • At this operating point the engine returns 1,920 units for gross shop capacity per slab capacity.
  • At this operating point the engine returns 19.2 units for shop capacity per slab downtime loss.
  • At this operating point the engine returns 57.02 units for shop capacity per slab yield loss.

How this compares with the baseline

  • Against the tool's baseline example, where expected saw and cnc uptime sits at 90% and the headline result is 1,676 units, this scenario comes in 10% above the baseline at 1,844 units.
  • It computes good (sellable) fabrication capacity from gross capacity after uptime and first-pass yield losses. 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

  • Good shop capacity per slab capacity: 1,844 units (headline result)
  • Gross shop capacity per slab capacity: 1,920 units
  • Shop capacity per slab downtime loss: 19.2 units
  • Shop capacity per slab yield loss: 57.02 units

Run it with your numbers

  • Every input above is editable in the live Shop Capacity per Slab calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.