French Drain Sizing Calculator

Calculate French drain dimensions and materials for drainage projects.

Linear measurement in the specified unit.
ft
Horizontal measurement perpendicular to length.
inches
Measurement of how deep something extends.
inches

Results

Gravel Needed:
Calculated gravel needed based on your inputs.
-cubic yards
Filter Fabric:
Calculated filter fabric based on your inputs.
-sq ft
Drain Pipe:
Calculated drain pipe based on your inputs.
-linear ft
Reference: Industry Standards.