CIVILNEX

July 10, 2026

Stone Column Ground Improvement – Roundhouse Addition

Dec 15, 2025 AI Prefilled
Total Cost

$40,750.25

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Description Quantity Unit Unit Price Total Actions
Mobilization/Demobilization
$8,000.00
Mobilization to site
Includes transportation of equipment and personnel to site.
1.00 LS $5,000.00 $5,000.00
Demobilization from site
Includes transportation of equipment and personnel off site.
1.00 LS $3,000.00 $3,000.00
Site Preparation
$1,500.00
Site clearing and grading
Clearing vegetation and grading the site.
1.00 AC $1,500.00 $1,500.00
Excavation/Earthwork
$2,000.00
Excavation for stone columns
Excavation volume based on soil data.
100.00 CY $20.00 $2,000.00
Foundation/Piling Work
$10,000.00
Stone column installation
Installation of stone columns based on design requirements.
50.00 EA $200.00 $10,000.00
Materials
$4,500.00
Aggregate for stone columns
Aggregates needed for stone columns, delivered to site.
150.00 TON $30.00 $4,500.00
Labor
$5,000.00
Labor for stone column construction
Labor hours for skilled workers on site.
200.00 HR $25.00 $5,000.00
Equipment
$5,750.00
Excavator rental
Rental cost for excavator for excavation work.
50.00 HR $75.00 $3,750.00
Stone column rig rental
Rental cost for stone column installation rig.
20.00 HR $100.00 $2,000.00
Subcontractors
$3,000.00
Geotechnical consulting
Consulting fees for geotechnical investigations.
1.00 LS $3,000.00 $3,000.00
Testing & Inspection
$1,000.00
Soil compaction testing
Testing soil compaction for stone columns.
5.00 EA $200.00 $1,000.00
Overhead & Profit
$0.15
Overhead & profit markup (15%)
Percentage markup on total direct costs.
1.00 LS $0.15 $0.15
Contingency
$0.10
Contingency (10% of total costs)
Percentage set aside for unexpected expenses.
1.00 LS $0.10 $0.10
Grand Total: $40,750.25
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