Other Estimating Methods 229
by the perimeter adjustment, and the resultant is added
or deducted from the base cost per square foot.
- Next, the base cost per square foot needs to be adjusted
for differences in the heights of the stories. This is done
by determining the difference between the proposed
building’s story height and the story height used to
develop the square foot costs. The story height is 24for
the warehouse and is found in the top left-hand corner
of Figure 21.3. This difference is then multiplied by the
story height adjustment, and the resultant is added or
deducted from the base cost per square foot.
- The square footage of the building is multiplied by the
cost per square foot, including adjustments for the
perimeter and story height.
6. Other costs are then added or subtracted from this price
to account for differences in the design.
EXAMPLE 21-4 SQUARE-FOOT ESTIMATE USING RS MEANS
Using Figures 21.2 and 21.3, determine the cost for a 250by 120,
tilt-up concrete warehouse. The warehouse is 30high and has a
steel frame. Include four 7 8 dock levelers in the costs.
From Figure 21.2, the cost per sf for a tilt-up concrete warehouse with
an area of 30,000 sf is $79.15 per sf. From Figure 21.2, the base
perimeter is 700 lf and an add of $2.10 per sf per 100 lf of perimeter is
required.
Perimeter 250 ¿ 120 ¿ 250 ¿ 120 ¿ 740 ¿
Area 250 ¿ 120 ¿30,000 sf
FIGURE 21.2.Warehouse Square Foot Costs.
From Means Square Foot Cost Data 2007. Copyright RS Means, Kingston, MA 781-585-7880; All rights reserved
