Calculate Your Trench Gravel & Pipe Volume

Whether you’re laying a French drain, building a utility trench, or managing a commercial run, getting your aggregate ordering right is the difference between a finished project and an extra trip to the yard. This tool automatically accounts for pipe displacement and builds in a standard 10% safety buffer for compaction - giving you the exact tonnage and pipe length you need. No guesswork. Just accurate specs.

Greenlist Trench & Gravel Calculator

Clarity & Precision
Calculate the exact volume of clean drainage gravel and pipe length needed for your French drain, utility trench, or soakaway. This tool automatically accounts for pipe displacement and includes a contractor-recommended 10% waste buffer.

Measure the total linear length of the run.

Material Estimation

Complete the trench dimensions above to generate your materials list.