What precautions must an estimator take when using an allowance, from the specifications, in the estimate? Where the estimator uses a cash allowance from the contract documents, great care must be taken to understand exactly what is covered with the allowance. N Often the cash allowance is for materials only and the estimator still must estimate the associated labor The dowvances in the specifications will always include materials and labor and the estimator will not add elbill and Blarty