Name the baseline set

Record the baseline drawing set and issue date. Keep item names and location codes stable.

Store the takeoff version beside its document identifier. For takeoff revision control, use this related guide as context while keeping the current project documents in control.

Find changed documents

Read addendum narratives, clouds, and sheet indexes together. Mark affected scope before editing quantities. Classify sheets as new, revised, replaced, or voided.

Revise with history

Preserve the prior quantity before changing it. Separate plan changes from estimator corrections.

Revisit related areas, lengths, counts, and volumes. When reviewing takeoff revision control, consult AACE International for cost-engineering context, then apply it through the contractor’s own standards.

Review fields for takeoff revision control
FieldRecordDecision check
Revision identifierRecord the revision identifier used for takeoff revision control.Confirm the entry against its cited source and assigned reviewer.
Document changeRecord the document change used for takeoff revision control.Confirm the entry against its cited source and assigned reviewer.
Prior quantityRecord the prior quantity used for takeoff revision control.Confirm the entry against its cited source and assigned reviewer.
Current quantityRecord the current quantity used for takeoff revision control.Confirm the entry against its cited source and assigned reviewer.
Reviewer and statusRecord the reviewer and status used for takeoff revision control.Confirm the entry against its cited source and assigned reviewer.

Reconcile downstream pricing

Use one controlled export into pricing. Compare work-package totals before and after revision. Refresh alternates that use changed quantities.

Lock the final quantities

Freeze the final set at the internal deadline. Confirm every estimate section uses one revision.

Include the revision summary in handoff. For recurring takeoff revision control records, an estimating support role can maintain inputs while final approval stays with the contractor.

Frequently asked questions

What is the baseline?

It is the named document set used for the original measurement.

Should old quantities be deleted?

No, retain the prior value, source, and reason in revision history.

How are corrections labeled?

Separate estimating corrections from document-driven changes.

When is the set final?

It is final after approval and reconciliation across every downstream estimate output.

Takeoff & QuantitiesConstruction EstimatingCost Support