Lighting, LEDs & Electrical Fixtures worked example

Assembly Labor per Fixture at 17% verification and delay allowance: a worked example

What does the result look like when verification and delay allowance reaches 17%? The full calculation is worked below with real intermediate numbers. Use this when staffing a fixture assembly shift, building labor cost into a fixture quote, checking whether the batch fits available shift hours, or comparing labor efficiency between product lines.

The inputs for this scenario

  • Fixtures in batch: 200 fixtures (unchanged)
  • Assembly rate per operator: 7 fixtures / hr (unchanged)
  • Verification and delay allowance: 17 % (raised for this scenario; the documented default is 15)

Working through the calculation

  • Applying the documented formula (Base assembly hours = fixtures in batch / assembly rate per operator) to the inputs above produces each figure below.
  • At this operating point the engine returns 33.43 hr for required assembly hours (with allowances), the number this scenario is built around.
  • At this operating point the engine returns 28.57 hr for base assembly hours.
  • At this operating point the engine returns 17 % for verification and delay allowance applied.
  • At this operating point the engine returns 7 pieces / min for assembly rate (fixtures/hr per operator).

How this compares with the baseline

  • Against the tool's baseline example, where verification and delay allowance sits at 15% and the headline result is 32.86 hr, this scenario comes in 1.74% above the baseline at 33.43 hr.
  • A figure at this level is achievable when verification and delay allowance is genuinely sustained, not just peaked for a shift. A single blended allowance can't capture a learning curve on a new fixture model or a mid-run jig failure, so re-run it per model once you have line-side time studies.

Results at a glance

  • Required assembly hours (with allowances): 33.43 hr (headline result)
  • Base assembly hours: 28.57 hr
  • Verification and delay allowance applied: 17 %
  • Assembly rate (fixtures/hr per operator): 7 pieces / min

Run it with your numbers

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

Last reviewed 2026-05-12.