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🔄 ADVANCED BACKFILLING CALCULATOR
All prices in KES (KSh)
1. BACKFILL DETAILS
Backfill Type
Foundation Trench Backfill
Basement Backfill
Around Footings
Around Retaining Walls
General Area Backfill
Backfill Depth (mm)
Typical depth: 500-2000mm
2. VOLUME CALCULATION
Enter Dimensions
Enter Direct Volume
Length (mm)
Width (mm)
Calculated Volume:
Enter dimensions above
Enter Volume Directly (m³)
3. COMPACTION REQUIREMENTS
Compaction Level
Light (85-90%)
Standard (90-95%)
Heavy (95-100%)
Standard (90-95%) compaction increases volume by 15%
Number of Layers
Typical: 150-300mm layers
Moisture Content (%)
Optimal: 8-12% for most soils
4. BACKFILL MATERIAL
Purchase New Material
Reuse Excavated Material
Select Material Type
Excavated Soil
Reusing on-site soil
Density: 1.8 tons/m³
Gravel/Sand Mix
Good drainage properties
Density: 2 tons/m³
Crushed Stone
High stability
Density: 2.2 tons/m³
Select Fill
Engineered fill material
Density: 1.9 tons/m³
Structural Fill
For structural support
Density: 2.1 tons/m³
Excavated Soil Reuse
Using on-site soil for backfill. Ensure soil is suitable and compactable.
Material Cost per m³ (KSh)
Material Density (tons/m³)
Material Quantity Required:
0.0 tons
5. LABOR & EQUIPMENT
Percentage of Materials
Fixed Price per m³
Labor Percentage (%)
Labor Cost per m³ (KSh)
Equipment Cost per m³ (KSh)
For compactors, loaders, etc.
Testing/QC Cost (KSh)
Optional: Compaction testing
6. ADDITIONAL COSTS
Transport Distance (km)
Transport Cost per km (KSh)
Site Preparation Cost (KSh)
Grading, cleaning, drainage setup
CALCULATE BACKFILLING COST