I always keep the latest copy of the Whitestone Facility Maintenance and Repair Cost Reference. I find it very useful for life cycle cost analysis. Costs are broken down by task, material, and multiple labor rates. There are factors for market, building type, prevailing wage, etc. It's about as straightforward to use as a Means or Saylor cost estimating guide. As with those references, there's still a good amount of educated guessing that goes on between the lines, but you can usually get comfortably conservative M&O costs to work with. I can't vouch personally for the accuracy of the Whitestone numbers, but keep in mind that at the design phase of a project, when comparing a baseline against alternatives, incremental costs are more important than absolute costs. In other words, use it for life cycle cost analysis, but don't rely on it for actual M&O budgeting purposes unless you have a good deal of expertise in that area.
I haven't had the need to delve into the MARS system, yet. For $300/year, I can highly recommend the Cost Reference for use in any pre-design or design-phase life cycle cost or whole building analysis. It sits on the shelf right next to my Saylor's cost estimating guides.
Cheers.
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Eric Shamp AIA
Owner
Ecotype Consulting
Redlands CA
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