Estimate Quantity and Price Reconciliation

Choose a reproducible baseline

Record the prior estimate revision, current revision, measurement rules, drawing set, and pricing date. Reconcile like-for-like scope before explaining the total variance.

If the coding structure changed, create a crosswalk so moved cost is not mistaken for growth or savings. The estimate version guide helps preserve the exact comparison pair and the approvals attached to each release.

Explain quantity movement first

Compare net quantities by estimate code and trace material differences to design development, revised dimensions, added scope, deleted scope, changed waste treatment, or corrected measurement. Keep transfers between codes visible. A net-zero total can still conceal a significant scope shift.

AACE recommended practices on cost estimating provide professional reference points. The reconciliation still needs project records that support each measured change.

Reconcile price and mix separately

After quantity differences are understood, compare labor rates, productivity, material quotes, equipment assumptions, subcontractor coverage, escalation, and indirect-cost allocation. Separate a true rate change from a change in material mix or work method.

Close the review with the estimate change log. Each material variance should have a source, cost effect, owner, and disposition that ties back to the approved current estimate.

Frequently asked questions