Using Figures 22-2 and 22-3, determine the cost for a 125-foot by 200-foot warehouse. The exterior walls are to be galvanized steel siding over a steel frame. The warehouse is 26 feet high. Include 50 feet of asphalt around the building in your estimate.
What will be an ideal response?
The cost is as follows:
Area = 125? × 200? = 25,000 sf
Perimeter = 125? + 200? + 125? + 200? = 650?
From Figure 22-2, the cost per sf for warehouse with galvanized steel siding over a steel frame and an area of 25,000 sf is $85.05 per sf. From Figure 22-2, the base perimeter is 640 lf and an add of $2.60 per sf per 100 lf of perimeter.
Add for Perimeter ($/sf) = (650? – 640?) / 100? × $2.60 per sf per 100 lf = $0.26 per sf
From Figure 22-3, the base story height is 24? and from Figure 22-2, the adjustment for story height is $0.45 per sf per foot of height.
Add for story height ($/sf) = (26? – 24?) × $0.45 per sf per ft = $0.90 per sft
Base cost ($/sf) = $85.05 per sf + $0.26 per sf + $0.90 per sf = $86.21 per sf
Base cost ($) = 25,000 sf ×$86.21 per sf = $2,155,250
From Figure 22-2, the cost for asphalt is $7.85 per sy.
Area of asphalt = (50? + 125? + 50?) × (50? + 200? + 50?) – 125? × 200?
Area of asphalt = 225? × 300? – 125? × 200? = 42,500 sf / 9 sf per sy = 4,722 sy
Asphalt = 4,722 sy × $7.85 per sy = $37,068
Total cost = $2,155,250 + $37,068 = $2,192,318 – Use $2,190,000
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