- To keep things simple, all costs in AE are installed costs that include material, labor, and equipment components, in addition to pre-computed subcontractor overhead and profit.
- 75 parametric RS Means building cost models ranging from simple office buildings to hospitals and schools.
- 11,000+ installed systems and assemblies plus 20,000+ line item costs.
- Cost factors and indices updated for over 700 North American locations.
- Cost data includes RS Means Square Foot Models data and the complete RS Means Assemblies Cost Data and Building Construction Cost Data (BCCD) Books.
- Cost data is updated annually.
The Development of Cost Data
The following is how RS Means explains the basis of their costs. The staff at RS Means continuously monitors developments in
the construction industry in order to ensure reliable,
thorough, and up-to-date cost information. While overall
construction costs may vary relative to general economic
conditions, price fluctuations within the industry are
dependent upon many factors. Individual price variations may,
in fact, be opposite to overall economic trends. Therefore,
costs are continually monitored and complete updates are
published yearly. Also, new items are frequently added in
response to changes in materials and methods.
Costs - $ (U.S.)
All costs represent U.S. national averages and are given in U.S.
dollars. The Means City Cost Indexes (Location Adjustment)
should be used to adjust costs to a particular location. The
City Cost Indexes for Canada can be used to adjust U.S. national
averages to local costs in Canadian dollars. No exchange rate
conversion is necessary.
Model Costs
The base building cost for each of the 75 model buildings is
computed from a small number of variables, including total area,
perimeter, number of floors, and exterior wall and framing
systems. Each of these variables is linked by formulas to
assemblies and line items that are added to compute the total
base building cost. A number of optional additives are provided
for each building model, allowing the user to select appropriate
added items and insert required quantities. Each model is based
on specific parameters that cannot be varied significantly
without invalidating the resulting cost estimate. For example, a
building model of two stories cannot be used for a cost estimate
of a similar building type of five stories, since many of the
systems used and some of the computations would be inappropriate
for the taller building.
Material Costs
The RS Means staff contacts manufacturers, dealers,
distributors, and contractors all across the U.S. and Canada to
determine national average material costs. Included within
material costs are fasteners for a normal installation. RS Means
engineers use manufacturers’ recommendations, written
specifications and/or standard construction practice for size
and spacing of fasteners. Adjustments to costs may be required
for your specific application or location. Material costs do not
include sales tax, but can be adjusted in the Cost Tab of the
Summary Info in CostLink/AE as described in chapter
4.
Labor Costs
Labor costs are based on the average of wage rates from 30 major
U.S. cities. Rates are determined from labor union agreements or
prevailing wages for construction trades for the current year.
Rates, along with overhead and profit markups, are listed on the
inside back cover of the appropriate RS Means cost book. If rate
increases are expected within a given year, costs should be
adjusted accordingly.
Labor costs reflect productivity based on actual working conditions. These figures include time spent during a normal workday on tasks other than actual installation, such as material receiving and handling, mobilization at site, site movement, breaks, and cleanup. Productivity data is developed over an extended period so as not to be influenced by abnormal variations and reflects a typical average.
Equipment Costs
Equipment costs include not only rental, but also operating
costs for equipment under normal use. The operating costs
include parts and labor for routine servicing such as repair and
replacement of pumps, filters, and worn lines. Normal operating
expendables such as fuel, lubricants, tires, and electricity
(where applicable) are also included. Extraordinary operating
expendables with highly variable wear patterns such as diamond
bits and blades are excluded. These costs are included under
materials. Equipment rental rates are obtained from industry
sources throughout North America—contractors, suppliers,
dealers, manufacturers, and distributors.
General Conditions
The Installing Contractor’s overhead and profit (O&P) is
automatically included. General Conditions, when applicable,
should also be added to the Total Cost including O&P. The costs
for General Conditions are listed in the Reference Section of
the appropriate RS Means cost book. General Conditions for the
Installing Contractor may range from 0% to 10% of the Total Cost
including O&P. For the General or Prime Contractor costs for
General Conditions may range from 5% to 15% of the Total Cost
including O&P, with a figure of 10% as the most typical
allowance.
Overhead and Profit
Overhead and profit is the arithmetic sum of Material (which
is the bare material cost plus 10% for profit), Labor (the base
labor cost plus total overhead and profit), and Equipment (the
bare equipment cost plus 10% for profit). Details for the
calculation of Overhead and Profit on labor are shown on the
back cover of the appropriate RS Means cost book.
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Copyright Building Systems Design, Inc. 2008. All rights reserved.
3565 Piedmont Road NE, Two Piedmont Center, Suite 300, Atlanta, GA 30305
404-365-8900 ° 888-BSD-SOFT (273-7638) ° fax 404-365-8912
Revised: March 20, 2008

