Painting and coatings
Painting crew project duration
Convert supplied person-hours and fixed elapsed stages into a crew calendar without calculating quantities or cure times.
Your inputs
Complete the fields for your selected method. Zero means intentionally zero, not unknown. Currency selection labels amounts; it does not convert exchange rates.
How this calculation works
crew days=person-hours/(crew*productive hours per day)+fixed elapsed days; crew needed=ceiling(person-hours/((deadline-fixed days)*productive hours)).
Labor hours and elapsed stages are supplied. Assumes divisible parallel work; does not prescribe coating cure time or calculate material quantities.
What information do I need?
Use records for the same job, equipment or accounting period. Only the fields for your selected entry method are required. An unknown amount is not zero.
Input definitions and where to find them
- Required productive labor (person-hours): Required productive person-hours from measured comparable work or a supplied estimate.
- Crew size (people): Use matching records or a clearly identified owner assumption for crew size, in the displayed unit and the stated row/period scope.
- Productive hours per person per day (hours/day): Actual time from logs/calendar/statement, or an explicitly labeled future schedule. Keep the period in productive hours per person per day consistent with all matching costs/outputs.
- Additional fixed elapsed stages (days): Supplied nonparallel elapsed stages, not a cure-time prescription.
- Required project deadline (days): Use matching records or a clearly identified owner assumption for required project deadline, in the displayed unit and the stated row/period scope.
Use the Where to find this value controls beside the inputs for available work-it-out helpers. Estimates remain your assumptions; a helper does not verify the source figures.
Worked example
Example amounts use US dollars (USD).
Example answer: Modeled elapsed duration is 6.00 days for the illustrative inputs below.
Example inputs
- Required productive labor: 80.00 person-hours
- Crew size: 2 people
- Productive hours per person per day: 8.00 hours/day
- Additional fixed elapsed stages: 1.00 days
- Required project deadline: 6.00 days
- Modeled elapsed duration
- 6.00 days
- Whole crew needed for deadline
- 2 people
These illustrative values are not recommended rates or industry averages. Replace every example input with your own figures.
Use the result well
Convert supplied person-hours and fixed elapsed stages into a crew calendar without calculating quantities or cure times.
Keep inputs on the same scope and time basis. Calculations retain precision internally; displayed values generally round to two decimal places, with extra precision for very small values and whole-unit rounding where required. Economic comparisons describe your supplied assumptions and do not guarantee future results.
This tool provides business arithmetic. It does not approve engineering designs, establish legal or tax treatment, select equipment or certify safe operating conditions.