Our firm use RS Means BCCD #60013 (part number on hand only because I happen to have one on my desk at this very moment).
We always adjust our numbers by the City Cost Indexes found therein, for instance in the Hampton Roads area where we are located, has a weighted average of about 87% of the national cost in the books body.
We track our Contractors Schedule Of Values (SOV, G702/3) against our estimates, and for those subcontractors that we see on a regular basis on our project sites, with our GC's permission we ask for and often receive their SOV's as well.
We have had a very good estimating track record. Before the economy went to $%^& we were nailing estimates to within 2% then we gave up. We have seen some Contractors take projects just to maintain some sibilance of a cash flow or just to keep their staff busy, sacrificing all profit. Those Firms that started down that path several years ago are no longer with us, the people are although be it in different capacities with the firms that are surviving but they to have cardboard in their work boots.
There being no way to estimate for those circumstances, verify conditions about your area and take the pulse of your local trade associations. They provide a wealth of free data and another "I really do care to know" marketing opportunity.
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Gerald F. Martin, AIA, NCARB
Martin & Martin Architecture, Inc.
Chesapeake VA
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