Skip to main content
C
Calcur
Home
All calculators
Project guides
Project Mode
Our method
○
Sign in
Find a calculator
↗
CalcurHome
French Drain Calculator — Gravel, Fabric and Pipe
Live calculator
Enter your measurements
Reset
Trench length
ft
Trench width
in
Gravel depth
in
Fabric overlap
in
Additional width for closing the wrap over the gravel; confirm the required overlap for the selected fabric.
Pipe and void displacement
%
Approximate share of the trench volume not occupied by gravel.
Material allowance
%
Loading live calculation…