Preconstruction vs. construction, and who does what.
Preconstruction covers everything before mobilization: estimates by design phase, value engineering, scheduling, procurement planning and buyout. The preconstruction manager leads it; estimators produce the numbers; the project manager takes over at handoff.
Send one plan set. See what the AI extracts and what it flags for review. No obligation.
- Phases
- Roles
- Handoffs
Who owns what.
| Role | Focus | Hands off to |
|---|---|---|
| Preconstruction manager | Owner relationship, design-phase estimates, VE, strategy | Project team at award |
| Estimator | Takeoff, pricing, sub coverage, bid | Precon manager / PM |
| Project manager | Delivery: cost, schedule, contracts, changes | Closeout |
What the PM needs from precon.
- Estimate with quantities traceable to drawings and revisions
- Assumptions, exclusions and allowances
- Buyout targets by trade
- Open RFIs and risks
From plan set to reviewed quantities.
AI-powered, human-approved. Each stage records what ran, what changed and who approved it.
Start with your bid package
Drawings, specs and addenda together: the plan set, legends and schedules, the spec sections for your scope and any addenda.
AI proposes quantities
Counts, lengths and areas come back with the source sheet and location attached to every row.
Estimator review
Low-confidence items surface first. Your estimator accepts, corrects or rejects each one.
Map to your assemblies
Approved quantities map to your items, assemblies and estimating assumptions.
Price reviewed rows
Labor units, material pricing and supplier quotes apply only to rows that passed review.
Hand off with evidence
Approved quantities move on to pricing and visual CPQ with the evidence trail still attached.
Supported files and tasks depend on your trade and implementation. Confirm them in the free sample run.
The AI drafts. Your estimator decides.
Speed is easy to promise. Defensible numbers are the job, so RenderDraw keeps the estimator in control of every quantity that gets priced.
- Source on every row. Each quantity keeps its source sheet, location and reviewer decision.
- Lowest confidence first. The review queue shows the drawing tile with the detection highlighted and the extracted value.
- Uncertain items flagged, not hidden. Anything the AI can't confirm goes to the estimator rather than being guessed.
- Nothing priced before approval. Rows move on to pricing only after they are accepted.
Questions estimators ask
What is the difference between preconstruction and construction?
Preconstruction plans and prices the work; construction executes it.
Preconstruction manager vs estimator?
The precon manager leads strategy and client work; estimators produce takeoffs and pricing.
Preconstruction manager vs project manager?
Precon leads before award; the PM leads delivery after.
How does RenderDraw help precon?
Faster, traceable takeoffs at each design milestone.
See what the AI reads on your own drawings.
Send one representative trade plan set. RenderDraw reviews it and follows up with what the AI extracted and what it flagged for review. Your files remain private while the request is assessed, and there is no obligation.
- Upload the plan set, legends and schedules, the spec sections for your scope and any addenda.
- RenderDraw reviews the set and the scope you want tested.
- We follow up with extracted quantities, flagged items and next steps.