Stone, Countertops & Engineered Surfaces worked example

Shop Capacity per Slab at 65% expected saw and cnc uptime: a worked example

This worked example runs the shop capacity per slab numbers for a tougher week than the baseline: 65% expected saw and cnc uptime instead of the typical 90%. Estimate shop capacity per slab for stone, countertops and engineered surfaces using production-ready inputs so teams can confirm whether capacity can cover demand before committing the schedule.

The inputs for this scenario

  • Finished pieces cut per fabrication cycle: 4 units / cycle (held at the documented default)
  • Available fabrication cycles in period: 480 cycles (held at the documented default)
  • Expected saw and CNC uptime: 65 % (the input this scenario stresses; the baseline uses 90)
  • Expected first-pass fabrication yield: 97 % (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Gross shop capacity per slab capacity = shop capacity per slab output per cycle × available shop capacity per slab cycles.
  • Good shop capacity per slab capacity works out to 1,211 units at these inputs, and this is the headline figure for the scenario.
  • Gross shop capacity per slab capacity works out to 1,920 units at these inputs.
  • Shop capacity per slab downtime loss works out to 672 units at these inputs.
  • Shop capacity per slab yield loss works out to 37.44 units at these inputs.

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 27.78% below the baseline at 1,211 units.
  • Use it for weekly scheduling, quoting realistic lead times, or sizing whether you can take on a new builder contract. 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

  • Good shop capacity per slab capacity: 1,211 units (headline result)
  • Gross shop capacity per slab capacity: 1,920 units
  • Shop capacity per slab downtime loss: 672 units
  • Shop capacity per slab yield loss: 37.44 units

Run it with your numbers

  • To rerun this with your own numbers, open the live Shop Capacity per Slab calculator, set expected saw and cnc uptime to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.