Which stages should the workflow contain?
Use a stage gate for documents, scope, quantity, supplier, build-up and final review. Keep open issues visible between stages.
| Stage | Output | Gate |
|---|---|---|
| Documents | Current set and addenda | Index complete |
| Scope | System and interface map | Boundaries reviewed |
| Quantity | Measured takeoff | Sources recorded |
| Rates | Quote and rate register | Basis approved |
| Review | Estimate and risks | Bid lead approval |
How should an unresolved item move through the workflow?
Give it an owner and a temporary treatment. Do not let an open drawing or supplier question become an unexplained quantity or rate.
- Source reference
- Affected estimate rows
- Owner and due date
- Interim basis
- Closure action
What is the handoff to delivery?
Hand over the estimate basis, assumptions, exclusions, supplier responses and open items. A total without its basis is not a useful project handoff.
Common questions
What else should the bid team know?
What should a estimating workflow include?
It should include document control, scope mapping, takeoff, supplier enquiries, rate build-up, risk and approval stages.
Who reviews a estimating workflow?
The estimator owns the workflow, with technical, procurement and commercial reviewers closing their inputs.
Does this page create project quantities?
No. Use the issued drawings, schedules and specifications. The estimator reviews and approves the project basis.
Primary sources
- MasterFormat 2026Construction Specifications Institute
- NFPA 70, National Electrical CodeNational Fire Protection Association
- ANSI/TIA-942 Telecommunications Infrastructure Standard for Data CentersTelecommunications Industry Association
- Tier Standard: TopologyUptime Institute