Quite often, in the course of finalization of an assignment, clients ask us, "What is the accuracy with which you will provide quantities". Though not articulated expressly, we understand that the client expects 100% accuracy in Quantity estimation! Obviously, no Quantity Estimator can truthfully claim to provide 100 % accuracy in her deliverable. Our stock answer to this question is "the accuracy will be in proportion to the quality of the drawings & details provided to us".