Cryogenic Storage & LNG Equipment worked example

Field Erection Labor at 7.2% field delay and handling allowance: a worked example

Here is what the math looks like when conditions slip. We hold every other input steady and drop field delay and handling allowance to 7.2%, then walk the calculation through step by step. Estimate field labor hours for erecting cryogenic tanks, LNG skids, vacuum-jacketed piping, vaporizers, or transfer equipment.

The inputs for this scenario

  • Cryogenic equipment erection workload: 120 installed units (held at the documented default)
  • Field erection completion rate: 12 units / hr (held at the documented default)
  • Field delay and handling allowance: 7.2 % (the input this scenario stresses; the baseline uses 10)

Working through the calculation

  • The calculation starts from the formula this tool documents: Base erection labor = cryogenic equipment erection workload รท field erection completion rate.
  • Required field erection labor works out to 10.72 hr at these inputs, and this is the headline figure for the scenario.
  • Base erection labor works out to 10 hr at these inputs.
  • Field delay allowance applied works out to 7.2 % at these inputs.
  • Field erection completion rate works out to 12 pieces / min at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where field delay and handling allowance sits at 10% and the headline result is 11 hr, this scenario comes in 2.55% below the baseline at 10.72 hr.
  • The practical read: the gap between this scenario and the baseline is entirely attributable to field delay and handling allowance, so recovering it is worth quantifying in dollars before considering equipment or staffing changes. It uses one blended completion rate, so a job mixing quick pipe-rack sets with a slow cold-box alignment needs to be split into separate runs.

Results at a glance

  • Required field erection labor: 10.72 hr (headline result)
  • Base erection labor: 10 hr
  • Field delay allowance applied: 7.2 %
  • Field erection completion rate: 12 pieces / min

Run it with your numbers

  • To rerun this with your own numbers, open the live Field Erection Labor calculator, set field delay and handling allowance to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.