​What are some of the data sources many of you rely on when preparing definitive cost estimates? I know suppliers, vendors and contractors can be called, but what about various pre-published cost data. This is more toward building construction and operations. Also what would consider as a level ...

RE: ​​ Measuring estimated cost at budget / actual cost at construction ratio Has there been recent analysis conducted to reflect what a "reasonable" industry value for measuring the accuracy of estimates prepared for project budgets when compared to the actual costs paid at construction. If so can ...