Marine, Shipbuilding & Boat Manufacturing worked example

Dockside Rework Cost with number of defects requiring repair of 6 defects: a worked example

Suppose number of defects requiring repair falls to 6 defects. This page works the full calculation at that level so you can see exactly which result moves and by how much. Estimate the total cost of dockside rework on delivered vessels based on defect count, average repair hours, labor rate, material cost per defect, and fixed mobilization costs.

The inputs for this scenario

  • Number of defects requiring repair: 6 defects (the input this scenario stresses; the baseline uses 12)
  • Average repair hours per defect: 3.5 hr / defect (held at the documented default)
  • Burdened dockside labor rate: 95 $ / hr (held at the documented default)
  • Average material cost per repair: 85 $ / defect (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Total rework labor cost = defects x average repair hours x burdened labor rate.
  • Total dockside rework cost works out to 105 $ at these inputs, and this is the headline figure for the scenario.
  • Average rework cost per defect works out to 17.49 $ / piece at these inputs.
  • Rework labor cost works out to 19.95 $ at these inputs.
  • Rework material cost works out to 85 $ at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where number of defects requiring repair sits at 12 defects and the headline result is 125 $, this scenario comes in 15.97% below the baseline at 105 $.
  • It computes the combined labor and material cost of repairing a batch of defects discovered at the dock, plus the average cost per defect. 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

  • Total dockside rework cost: 105 $ (headline result)
  • Average rework cost per defect: 17.49 $ / piece
  • Rework labor cost: 19.95 $
  • Rework material cost: 85 $

Run it with your numbers

  • To rerun this with your own numbers, open the live Dockside Rework Cost calculator, set number of defects requiring repair to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.