Construction · Defined
Substitution
A proposed replacement for a specified product, system, or method.
Why it matters
Compare performance, compatibility, warranty, cost, and schedule. A lower price does not establish equivalence, and acceptance should follow the required review process. Document approval and any related contract adjustment before treating the replacement as the accepted scope.
In practice
A project example
An alternate window is checked against specified thermal and water-performance criteria before procurement.
General educational guidance from KOW Building Consultants. Examples are illustrative, not project records. The applicable contract, standard, program, and jurisdiction control the requirements for a specific assignment.