Welding & Fabrication worked example
Welding Cost Per Part with parts in the welding run of 50 parts: a worked example
Here is what the math looks like when conditions slip. We hold every other input steady and drop parts in the welding run to 50 parts, then walk the calculation through step by step. Calculate total welding cost and weld cost per part from quantity, variable weld cost, setup, and labor with burden.
The inputs for this scenario
- Parts in the welding run: 50 parts (the input this scenario stresses; the baseline uses 100)
- Variable weld cost per part: 4.5 $ / part (held at the documented default)
- Fixed setup and tooling cost: 180 $ (held at the documented default)
- Welder labor with burden: 1,200 $ (held at the documented default)
Working through the calculation
- The calculation starts from the formula this tool documents: Total welding cost on the run = parts × variable weld cost per part + fixed setup and tooling cost + welder labor with burden.
- Total welding cost on the run works out to 1,605 $ at these inputs, and this is the headline figure for the scenario.
- Welding cost per part works out to 32.1 $ / piece at these inputs.
- Variable weld cost per part works out to 225 $ at these inputs.
- Fixed setup, tooling, and labor works out to 1,380 $ at these inputs.
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 12.3% below the baseline at 1,605 $.
- The practical read: the gap between this scenario and the baseline is entirely attributable to parts in the welding run, so recovering it is worth quantifying in dollars before considering equipment or staffing changes. 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: 1,605 $ (headline result)
- Welding cost per part: 32.1 $ / piece
- Variable weld cost per part: 225 $
- Fixed setup, tooling, and labor: 1,380 $
Run it with your numbers
- To rerun this with your own numbers, open the live Welding Cost Per Part calculator, set parts in the welding run to your actual value, and adjust the remaining inputs to match your operation.
Last reviewed 2026-05-12.