NBC data is updated quarterly on line.
RSMeans (Reed Construction), NBC, and many other vendors (M & S, too) rely upon data that they apparently obtain from research organizations, suppliers, or trade groups that actually are the "boots on the ground". They simply parse the info differently.
Craftsman's update icon is actually on my toolbar. BTW, I think this (2012)will be the first year that Dave Ogershok did not edit the issue. My 2012 issue came this week.
I poll local builders and costs but I find the actual CONSTRUCTION costs are changing very little year to year. But when I have good cost data on a plans and specs and I have the land value, then I actually compare that to the sales price later when the property sells. (We've only had maybe 4 nearby sales I have worked the past year.) The difference between the sales price less land price = the cost WITH Entrepreurial profit and the costs given me are usually close to cost book... The gap is that EP. We had a spec house of 1,430 SF, lots were selling $22,000. Cost was $78 a SF~ Actually sold for $140,000 - about $6,500 for EP. The builder also actually does the work so he made the builders profit (which is included in cost books) One brother is concrete and brick man. One frames, roofs, does the final. They hire out sheetrockers, electrical, plumbing, and do most of the rest. They continue to build 3 to 5 homes a year. And mom and one brother are Realtors...they try to keep dad off the Bobcat and mower...he started this 30 years ago and a serious wreck slowed him down a year or so ago.
How often is the data updated, and does RSMeans send out updates?
The RSMeans database is entirely reviewed and updated annually. The data found in the cost publications, CostWorks CD and MeansCostWorks.com online is new each year. RSMeans does not "send out" updated pricing. However, there is a quarterly update to the city cost index available that is based on a variety of "key" materials
(Engineering News Record)
Where does ENR get its data?
ENR has price reporters covering 20 U.S. cities who check prices locally. The prices are quoted from the same suppliers each month. ENR computes its latest indexes from these figures...
Where can I obtain data on construction costs in Florida or Arizona, or other states that ENR does not collect cost data from?
There are three major firms that collect construction cost data -- R.S. Means, Marshall and Swift/Boeckh, and BNI Books -- all of which have data for most regions of the U.S., including Florida and Arizona.
And for you Cannucks...
http://www.ciqs.org/public.asp?WCE=C=47|K=107909
very interesting listing of sources
http://www.planningplanet.com/wiki/...ng-sottware-and-techniques-spreadsheets-today