Composites, Fiberglass & Advanced Materials worked example

Composite Layup Labor at 13% handling, kitting and in-process inspection allowance: a worked example

Suppose handling, kitting and in-process inspection allowance falls to 13%. This page works the full calculation at that level so you can see exactly which result moves and by how much. Estimate layup labor hours for hand layup, prepreg layup, wet layup, or dry fabric ply placement.

The inputs for this scenario

  • Total ply-area to lay (laminate area × ply count): 420 ply-sq ft (held at the documented default)
  • Hand layup placement pace per laminator: 55 ply-sq ft / hr (held at the documented default)
  • Handling, kitting and in-process inspection allowance: 13 % (the input this scenario stresses; the baseline uses 18)

Working through the calculation

  • The calculation starts from the formula this tool documents: Base composite layup labor = laminate area multiplied by ply count ÷ layup placement pace.
  • estimated composite layup labor works out to 8.63 hr at these inputs, and this is the headline figure for the scenario.
  • base composite layup labor works out to 7.64 hr at these inputs.
  • layup handling and inspection allowance works out to 13 % at these inputs.
  • layup placement pace works out to 55 ply-sq ft / hr at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where handling, kitting and in-process inspection allowance sits at 18% and the headline result is 9.01 hr, this scenario comes in 4.24% below the baseline at 8.63 hr.
  • It computes hand layup labor hours by dividing total ply-area by a laminator's placement pace, then adds a percentage allowance for handling and inspection. When the numbers land here, the stressed input is the lever to work; the walkthrough above shows exactly how much each output recovers as it climbs back toward the baseline.

Results at a glance

  • estimated composite layup labor: 8.63 hr (headline result)
  • base composite layup labor: 7.64 hr
  • layup handling and inspection allowance: 13 %
  • layup placement pace: 55 ply-sq ft / hr

Run it with your numbers

  • To rerun this with your own numbers, open the live Composite Layup Labor calculator, set handling, kitting and in-process inspection allowance to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.