Productivity Loss Calculator

Productivity losses compound construction cost. This calculator quantifies impact.

Planned hours

Actual hours

Burdened rate

Productivity target %

Lost productivity cost

$212,500

Excess hours

2,500

Productivity rate %

82.76%

How the math works

Cost = excess hours × burdened rate. Productivity rate = planned ÷ actual.

Weekly productivity reporting catches problems early. Identify scope units running >15% over plan and reassign supervision, reinforcement, or re-sequencing before the problem compounds.

How to Use

Enter planned labor hours.
Enter actual labor hours.
Enter burdened hourly rate.
Enter productivity target %.
Read lost productivity cost.

Frequently Asked Questions

Productivity baseline?

Industry standard 60-70% productive time (boots on task). Best-in-class 75-80%. Productivity drops when trades stacked, weather delays, rework, or material shortages interrupt flow.

Loss causes?

Weather. Trade interference. Change orders mid-work. Rework. Waiting for materials. Waiting for inspections. Each shows up as labor hours with reduced output.

Measuring?

Task-based earned value tracking. Compare budgeted hours to actual for each scope unit. Identifying problem scopes early (during work) is more valuable than post-mortem analysis.

How often should I rerun this?

Rerun this calculator whenever inputs change materially — new rent roll data, rate moves, loan balance updates, or quarterly operating data. For active deals, monthly refresh is typical. For stabilized assets under monitoring, quarterly is fine. Treat the output as a decision tool, not a one-time answer — market conditions evolve and so should your analysis.