🚧 Drainage & Earthworks
Drainage & Earthworks calculators
Excavation volume, soakaway and dry well sizing, drainage fall, French drain, land drain, cut-and-fill balance, slope grade and rain-barrel sizing.
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Compaction Factor Calculator
Adjusts bulk material volume for compaction factor after laying
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Cut and Fill Calculator
Estimates cut and fill volumes for site levelling and earthworks
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Excavation Volume Calculator
Estimates cubic metres or yards of soil to excavate and remove
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French Drain / Trench Drain Calculator
Estimates pipe length, gravel, and geotextile for French drains
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Land Drain Calculator
Estimates perforated pipe length and gravel for land drainage
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Pipe Fall / Gradient Calculator
Calculates drainage pipe fall per metre or foot
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Skip / Dumpster Size Calculator
Recommends skip or dumpster size from waste volume and type
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Soakaway / Dry Well Calculator
Calculates soakaway pit size from catchment area and soil type
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Soil Volume to Weight Calculator
Converts soil volume to tonnes or pounds by soil type and density
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Sub-Base / Hardcore Calculator
Calculates tonnes or tons of crushed stone sub-base for driveways