Scope and inputs to reconcile
Define the exact material, route, equipment or prefabrication alternative. Keep performance requirements, system boundaries and quotation dates consistent between options.
Workflow and checks
Measure both options, compare supplier inclusions and installation assumptions, and record changes to supports, joints, insulation or testing. Submit unresolved design and code questions to the designer before treating an alternative as bid-ready.
What the output should show
Request a side-by-side cost comparison with quantity differences, vendor assumptions, potential credits and approval dependencies. Describe the effect on other trades separately.
Exclusions and unresolved decisions
Estimated savings are not measured client results. Engineering suitability, authority acceptance and lifecycle performance cannot be established by a takeoff alone.
Documents to share for a quote
Provide baseline specifications, proposed alternatives, drawings, supplier quotations and the required acceptance criteria. Identify who may approve the substitution.