Marine, Shipbuilding & Boat Manufacturing calculator

Dockside Rework Cost Calculator

Dockside rework cost is the all-in price of fixing defects found after a hull, deck, or system has left its build station — gelcoat blisters, weld porosity, misaligned hardware, leaking fittings. Yard production managers and quality leads track it because dockside repairs are the most expensive place to catch a defect: the work is out of position, access is poor, and the boat is often already committed to a delivery slot. This calculator combines labor and material cost so you can put a dollar figure on a rework backlog or a recurring quality escape. It is the number that justifies first-time-quality investment upstream.

What this calculator does

  • 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.
  • Use it to quantify post-delivery rework exposure, justify quality improvements in production, and set rework reserves in vessel pricing.
  • It computes the combined labor and material cost of repairing a batch of defects discovered at the dock, plus the average cost per defect.

Formula used

  • Total rework labor cost = defects x average repair hours x burdened labor rate
  • Total rework material cost = defects x average material cost per repair
  • Total dockside rework cost = rework labor cost + rework material cost

Inputs explained

  • Number of defects requiring repair:
  • Average repair hours per defect:
  • Burdened dockside labor rate:
  • Average material cost per repair:

How to use the result

  • Use it when you have a list of open dockside punch-list items and need to cost the rework effort, or when comparing the cost of a recurring escape against a process fix.
  • It assumes an average repair time and material cost across all defects; a few severe structural or laminate repairs can skew the real total well above the average-based estimate.

Current U.S. benchmarks

  • As of Jun 2026, average hourly earnings in U.S. manufacturing are $30.27 (BLS), up 4.4% from a year earlier. Burdened shop rates typically run 1.3 to 1.8 times earnings once benefits and overhead are loaded.
  • U.S. housing starts run at 1,177k per year (Census, May 2026), down 8.7% from a year earlier, the demand driver for building products.
  • The U.S. has 11,691 transportation equipment establishments employing about 1,682,910 workers (Census County Business Patterns, 2023).

Common questions

  • How do you calculate dockside rework cost? Multiply the number of defects by average repair hours and the burdened labor rate to get labor cost, add defects times average material cost for material, and sum the two. With 12 defects at 3.5 hr each, a $95/hr burdened rate, and $85 material per repair, the total is $124.90.
  • What is a good dockside rework cost per boat? There is no universal figure, but world-class yards keep dockside rework under 1-2% of build labor hours. The per-defect cost matters more — driving down both the count and the average $10.41/defect in this example signals strong first-time quality.
  • Why is dockside rework more expensive than in-station rework? At the dock the work is out of position, access through finished compartments is restricted, and you often need scaffolding, masking, or relaunch. The same gelcoat or wiring fix can cost two to four times what it would have in the lamination or fit-out bay.
  • Should I use a burdened or raw labor rate? Use the burdened rate — $95/hr here — because dockside rework consumes supervision, consumables, facility overhead, and benefits, not just the technician's base wage. A raw rate understates the true cost of every escape.
  • How do I reduce dockside rework cost? Attack the defect count first with in-process inspection gates before the boat leaves each station. Cutting defects from 12 to 6 in this example halves the total to roughly $62, a bigger lever than shaving repair hours.

Last reviewed 2026-05-12.