Welding & Fabrication worked example

Welding Cost Per Part with parts in the welding run of 250 parts: a worked example

What does the result look like when parts in the welding run reaches 250 parts? The full calculation is worked below with real intermediate numbers. Use it when quoting a weldment or weld assembly run and you need a defensible total cost and per-piece weld cost for the customer or the cost roll-up.

The inputs for this scenario

  • Parts in the welding run: 250 parts (raised for this scenario; the documented default is 100)
  • Variable weld cost per part: 4.5 $ / part (unchanged)
  • Fixed setup and tooling cost: 180 $ (unchanged)
  • Welder labor with burden: 1,200 $ (unchanged)

Working through the calculation

  • Applying the documented formula (Total welding cost on the run = parts × variable weld cost per part + fixed setup and tooling cost + welder labor with burden) to the inputs above produces each figure below.
  • At this operating point the engine returns 2,505 $ for total welding cost on the run, the number this scenario is built around.
  • At this operating point the engine returns 10.02 $ / piece for welding cost per part.
  • At this operating point the engine returns 1,125 $ for variable weld cost per part.
  • At this operating point the engine returns 1,380 $ for fixed setup, tooling, and labor.

How this compares with the baseline

  • Against the tool's baseline example, where parts in the welding run sits at 100 parts and the headline result is 1,830 $, this scenario comes in 36.89% above the baseline at 2,505 $.
  • A figure at this level is achievable when parts in the welding run is genuinely sustained, not just peaked for a shift. It treats variable weld cost per part and labor as flat totals for the run, so rework, weld rejects, and learning-curve effects aren't modeled unless you build them into the inputs.

Results at a glance

  • Total welding cost on the run: 2,505 $ (headline result)
  • Welding cost per part: 10.02 $ / piece
  • Variable weld cost per part: 1,125 $
  • Fixed setup, tooling, and labor: 1,380 $

Run it with your numbers

  • Every input above is editable in the live Welding Cost Per Part calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.