Float Consumption Calculator

Float burn measures schedule slip risk.

Total float days

Float consumed

Remaining work days

Cost per day over schedule

Remaining float

Additional float expected to be consumed

Projected slip cost

$59,500

How the math works

Remaining = total − consumed. Consumption rate predicts burn over remaining work. Slip cost = excess × daily.

21 − 14 = 7 remaining. At current rate, likely to burn through in 20 more work days. ~$170k slip cost if fully materialized.

How to Use

Enter total float days.
Enter float consumed to date.
Enter remaining work days.
Enter cost per day if over.
Read remaining float and risk.

Frequently Asked Questions

What is float?

Days a non-critical task can slip without affecting completion. Different from total float (days project can slip). Critical path has zero float. Construction typically has 10-20 total float days built into schedule.

Float ownership?

Classically owner's (purchased with the project). Modern contracts: 'no damage for delay' clauses limit GC claims. Shared float proposals: owner and GC benefit proportionally. Clear ownership in contract avoids disputes.

Risk indicators?

Float consumed > time elapsed × 1.0: on-pace or ahead. > 1.5: slipping. > 2.0: critical. Monitor weekly. 50% float consumed at 30% project complete = major red flag for completion on time.

How does this interact with the rest of the capital stack?

Each tier of the stack affects the next. Senior debt constrains LTC and DSCR. Mezz and pref consume equity spread. Interest rate hedges protect DSCR but cost premium. Always model the full stack holistically — optimizing one tier alone often degrades another. Institutional underwriters run three or four scenarios across the stack before committing capital.