Stone, Countertops & Engineered Surfaces worked example

Edge Polishing Labor at 12% profile-change, buffing, and handling allowance: a worked example

This scenario runs the edge polishing labor calculation on the strong side: 12% profile-change, buffing, and handling allowance, with every other input held at its documented default. Use it when edge polishing labor in stone, countertops and engineered surfaces needs a defensible run time before a quote goes out.

The inputs for this scenario

  • Linear inches of edge to polish: 120 units (unchanged)
  • Polishing throughput per operator: 12 units / min (unchanged)
  • Profile-change, buffing, and handling allowance: 12 % (raised for this scenario; the documented default is 10)

Working through the calculation

  • Applying the documented formula (Base edge polishing labor time = edge polishing labor workload รท edge polishing labor completion rate) to the inputs above produces each figure below.
  • At this operating point the engine returns 11.2 hr for required edge polishing labor time, the number this scenario is built around.
  • At this operating point the engine returns 10 hr for base edge polishing labor time.
  • At this operating point the engine returns 12 % for edge polishing labor allowance applied.
  • At this operating point the engine returns 12 pieces / min for edge polishing labor completion rate.

How this compares with the baseline

  • Against the tool's baseline example, where profile-change, buffing, and handling allowance sits at 10% and the headline result is 11 hr, this scenario comes in 1.82% above the baseline at 11.2 hr.
  • Use it when quoting edge profiles and when staffing the polishing station for a batch of countertops. 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

  • Required edge polishing labor time: 11.2 hr (headline result)
  • Base edge polishing labor time: 10 hr
  • Edge polishing labor allowance applied: 12 %
  • Edge polishing labor completion rate: 12 pieces / min

Run it with your numbers

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

Last reviewed 2026-05-12.