ToolsVault Fleet
Civil & Stormwater Drainage

French Drain & Stormwater Sizer

Prevent yard flooding and basement hydrostatic pressure. Calculate trench cubic yards, washed stone backfill, non-woven filter fabric, and pipe flow rate.

Trench Dimensions & Pipe

Linear Feet

Bill of Materials & Hydraulics

Washed Gravel 5.9 Cubic Yards (#57 Stone)
Gravel Weight 8.3 Tons
Geotextile Fabric 480 Sq Ft Non-Woven
Perforated Pipe 80 LF 4" Perforated
Max Flow Capacity 80 GPM At 1% slope
Est Material Cost $1,150 DIY Material BOM

Discharging Behind a Retaining Wall?

Calculate retaining wall block courses and hydrostatic pressure relief backfill.

Wall Sizer
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