French Drain Gravel Calculator: Estimate Materials & Cost USA
French Drain Gravel Calculator Calculate the aggregate required for your drainage trench Drain Length Feet (ft)Inches (in)Meters (m)Centimeters (cm) Drain Width Feet (ft)Inches (in)Meters (m)Centimeters (cm) Gravel Depth Feet (ft)Inches (in)Meters (m)Centimeters (cm) Waste Margin (%) % Accounts for trench variance & compaction (10% recommended). Gravel Density lb/ft³kg/m³ Standard crushed drainage stone is ~105 lb/ft³…