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Enter the backlog, weekly incoming work and the crew to see backlog in weeks, how it evolves and how many technicians you need, along with the main maintenance KPIs.
Pre-sizing and estimating tool: results do not replace design, calculations or reports signed by a licensed professional, nor verification against the applicable codes and standards.
Backlog in weeks with the current crew and the recommended crew; the green band runs from 2 to 4 weeks.
References from maintenance planning literature; adjust to your industry.
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Add the labor hours of approved work orders not yet done and divide by weekly capacity: technicians × weekly hours × (1 − absence) × wrench time.
Two to four weeks is the usual range. Below two, the crew tends to be idle or work is not being recorded; above four, jobs get late and turn into emergencies.
No. Raising wrench time from 35% to 50% through planning is equivalent to growing the crew by more than 40%, without new hires.
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