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Rework Cost Calculator
Rework adds material + labor + delay cost. This calculator quantifies rework impact.
Total rework cost
$103,920
Direct rework
$65,520
Delay carry
$38,400
How the math works
Cost = original × rework % × (1 + rush markup) + delay days × carry.
Invest 1-2% of budget in QA/QC to save 5-8% in rework. Most economical risk investment in construction.
How to Use
- Enter original work cost.
- Enter rework % of original.
- Enter markup for rush/remedial.
- Enter delay days.
- Enter daily carry.
- Read total rework cost.
Frequently Asked Questions
Rework rate?
5-8% industry baseline. Well-run jobs 2-4%. Problem jobs 10-15%+. Include punchlist work, redos of failed inspections, quality-driven replacement.
Main causes?
Design errors (30-40%), field coordination issues (20-25%), quality failures (15-20%), owner changes (10-15%), material substitution (10-15%). Design clarity is highest leverage area.
Reducing?
BIM coordination pre-construction. Mock-ups for complex assemblies. First-article inspections. Bi-weekly QC walks. Each invests 1-2% of cost to save 3-5% in rework.
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.
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