You may find that software is a great assistance in doing construction estimating.  If you are a contractor or construction professional you know how important the construction estimating and construction bidding process is - you don’t want to make poor estimates, or you won’t get good jobs!  Well, you might, but it is very much less likely you have repeat business from those customers if you are always coming in over budget!  Plus, if you overestimate projects, you are less likely to get the bid.  In any case, it makes good construction firm business sense to use a construction estimating calculator to help with cost calculations.