What is buyout in construction?
Buyout is the period after award when the general contractor turns its estimate into signed subcontracts and purchase orders. Each commitment has to match the specs, fit the budget line it was estimated against, and arrive when the schedule needs it. Long-lead equipment goes first. The gap between estimate and commitment is buyout savings or loss.
What gets bought out first?
| Wave | Typical items | Why first |
|---|---|---|
| Long lead | Switchgear, generators, structural steel, elevators, curtain wall, custom millwork | Fabrication time sets the critical path |
| Major systems | HVAC equipment, fire protection, roofing | Submittals and coordination take months |
| Remaining trades | Finishes, specialties, site work | Need-by dates are later; drawings are more complete |
| Ongoing releases | Commodity materials against blanket POs | Bought close to need |
The exact order comes from the schedule. Work backward from each need-by date through fabrication, submittal review and approval.
What should you check before you sign a subcontract or PO?
- Scope matches the leveled bid and the scope sheet, with every clarification written into the scope exhibit.
- Price fits the estimate line and the schedule of values line it bills against.
- Spec section, approved product or substitution path is named.
- Delivery and lead time match the schedule need-by date.
- Insurance, bonds and additional insured endorsements are required in the document and collected before mobilization.
- Flow-down terms from the prime contract, including prevailing wage and Buy America where they apply.
What goes wrong in buyout?
| Problem | Cause | Effect |
|---|---|---|
| Unapproved substitution | Supplier offers an "equal" without spec review | Submittal rejected, reorder, schedule slip |
| Late long-lead PO | Buyout not tied to the schedule | Critical path delay |
| Price moved since bid | Supplier quote expired; material prices changed | Margin lost line by line |
| Scope lost between bid and subcontract | Clarifications not carried into the scope exhibit | Scope gap and change order |
| PO lines do not map to the SOV | Different breakdowns in estimate and purchasing | Pay application friction every month |
What does BAU AI do for buyout today?
Dario is BAU AI's materials and procurement agent. Dario keeps purchase orders, supplier records and deliveries on the project record, matches each delivery note to its open order and logs received quantities, so shortages show up the day they land. Your team approves every order. Fina uses matched deliveries to back up supplier invoices.
Before that comes bid leveling. Nova produces the leveled bid tab and award memo, with exclusions and clarifications cited, which become the scope exhibit for each subcontract. Dora reviews the subcontract form against the prime contract.
Frequently asked questions
What is buyout in construction?
The post-award process of turning the estimate into signed subcontracts and purchase orders, each matched to the specs, the budget and the schedule.
What are buyout savings?
The difference between the estimated cost of a scope and the committed subcontract or PO price. If the commitment is higher, it is a buyout loss.
What should be bought out first?
Long-lead items whose fabrication time drives the schedule: switchgear, generators, structural steel, elevators and custom assemblies. Commodity materials can wait until closer to need.
Does BAU AI handle purchasing?
Dario keeps purchase orders and deliveries on the project record and matches delivery notes to open orders; your team approves every order. Nova levels the sub bids that buyout starts from, and Dora reviews subcontract terms.
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