Quick answer
Itemize one scope item per row, record the quantity and current entered rate, keep contingency separate from line-item rates, and fill actual cost only after the amount is known.
Project record
Home Project Estimate Worksheet
| Phase / area | Cost type | Item / scope | Quantity | Entered rate | Estimated total | Actual total | Rate / cost basis | Notes / exclusions | Row action |
|---|---|---|---|---|---|---|---|---|---|