Construction Machinery & Attachments worked example

Fixture Loading Time at 18% rigging, alignment, and inspection allowance: a worked example

This worked example runs the fixture loading time numbers for a tougher week than the baseline: 18% rigging, alignment, and inspection allowance instead of the typical 25%. Estimate fixture loading and unloading time for attachment weldment or assembly fixtures.

The inputs for this scenario

  • Fixture load and unload moves required: 36 units (held at the documented default)
  • Fixture handling pace: 5.5 units / hr (held at the documented default)
  • Rigging, alignment, and inspection allowance: 18 % (the input this scenario stresses; the baseline uses 25)

Working through the calculation

  • The calculation starts from the formula this tool documents: Base fixture handling time = fixture load and unload moves รท fixture handling pace.
  • estimated fixture loading time works out to 7.72 hr at these inputs, and this is the headline figure for the scenario.
  • base fixture handling time works out to 6.55 hr at these inputs.
  • rigging, alignment, and inspection allowance works out to 18 % at these inputs.
  • fixture handling pace works out to 5.5 moves / hr at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where rigging, alignment, and inspection allowance sits at 25% and the headline result is 8.18 hr, this scenario comes in 5.6% below the baseline at 7.72 hr.
  • Use it when quoting labor on a fixtured weldment or machining job, or when deciding whether a hydraulic clamp upgrade will pay back against manual rigging. 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

  • estimated fixture loading time: 7.72 hr (headline result)
  • base fixture handling time: 6.55 hr
  • rigging, alignment, and inspection allowance: 18 %
  • fixture handling pace: 5.5 moves / hr

Run it with your numbers

  • To rerun this with your own numbers, open the live Fixture Loading Time calculator, set rigging, alignment, and inspection allowance to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.