Plumbing

Crew Mix Economics (Apprentice vs. Journeyman)

Sending an apprentice-journeyman team costs more in raw labor than a journeyman alone, but frees up the journeyman's time. See the real breakeven, not just the hourly-rate difference.

Cheaper on raw labor costSolo, by $15
Solo labor cost$195
Team labor cost$210
Hours saved by team2 hrs
Recommended, once freed time countsTeam (net $75)

Cost delta at other time-savings levels

ScenarioTeam labor costCost deltaNet value of team
No time saved (0 hrs)$315$120-$120
1 hour faster$262.5$67.5-$22.5
2 hours faster$210$15$75
3 hours faster$157.5-$37.5$172.5
4 hours faster$105-$90$270

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Methodology

Formula: solo labor cost = solo hours × journeyman rate. Team labor cost = team hours × (journeyman rate + apprentice rate). If you enter what the journeyman's freed-up time is worth elsewhere, we also compute the net value of sending the team: the dollar value of the hours saved, minus the extra labor cost of running two people instead of one.

Assumption: apprentice loaded rates commonly run 40%-55% of journeyman scale. A two-person team almost always costs more in raw labor dollars than a solo journeyman, the real decision is whether the freed-up time is worth more than that gap, not whether the team is "cheaper" on paper.

Limitation: doesn't account for apprentice training value (a slower job today can mean a faster, more capable apprentice on future jobs), only the immediate labor-cost and time tradeoff for this one job.