We are just finishing up a master bath and bedroom remodel. In getting an explanation from the contractor on some of the final items on the bill, we were surprised to find out that they had moved an overage on a fixed priced line item to an allowance item. They went over their estimate on the fixed priced item and then charged this amount to an allowance item so that so there was no deduct. We had very detailed plans drawn up by an architect that were not referenced by the contractor when he put together the original estimate. We have worked through the other items, but this last one is worth a much larger deduction to us. We have checked for "industry standards" in our area (Portland, OR) to see if this is a normal practice. I have not found anything conclusive. Any thoughts from anyone?