Port, Crane & Terminal Equipment worked example

Crane Weldment Cost at 43% full-penetration weld share: a worked example

Suppose full-penetration weld share falls to 43%. This page works the full calculation at that level so you can see exactly which result moves and by how much. Estimate the fabrication cost of a port crane structural weldment from total weld seam length, per-inch welding cost, and the share of full-penetration joints.

The inputs for this scenario

  • Weld Seam Length: 4,800 in (held at the documented default)
  • Welding Cost per Inch: 6.5 $/in (held at the documented default)
  • Full-Penetration Weld Share: 43 % (the input this scenario stresses; the baseline uses 60)
  • Fit-Up & Fixturing Charge: 8,000 $ (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Weldment cost = seam length x cost per inch x full-penetration share% + fit-up/fixturing.
  • Total crane weldment cost works out to 21,416 $ at these inputs, and this is the headline figure for the scenario.
  • Crane weldment cost per unit works out to 4.46 $ / piece at these inputs.
  • Variable crane weldment cost works out to 13,416 $ at these inputs.
  • Fixed crane weldment cost adder works out to 8,000 $ at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where full-penetration weld share sits at 60% and the headline result is 26,720 $, this scenario comes in 19.85% below the baseline at 21,416 $.
  • It estimates total weldment cost from seam length times weld cost per inch scaled by the full-penetration share, plus a fixed fit-up and fixturing charge, and gives cost per inch of seam. 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 crane weldment cost: 21,416 $ (headline result)
  • Crane weldment cost per unit: 4.46 $ / piece
  • Variable crane weldment cost: 13,416 $
  • Fixed crane weldment cost adder: 8,000 $

Run it with your numbers

  • To rerun this with your own numbers, open the live Crane Weldment Cost calculator, set full-penetration weld share to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.