Geotextile Fabric
Permeable synthetic fabric separating soil layers while passing water. Under base stone it stops aggregate punching into subgrade; wrapping a french drain keeps fines from clogging the stone. Separation, not strength, is its job in residential work.
Where this appears in real estimates
This term isn't trivia — it's a working variable. These tools use it directly:
- french drain estimate tool — Drainage gravel, pipe and fabric for french drain trenches.…
- figure your paver base numbers — Gravel base and bedding sand tonnage for paver installations.…
- rip rap calculator — Rip rap stone tonnage for erosion control on slopes, channels and shorelines.…
Go deeper
- Metal Roof vs Asphalt Shingles — head-to-head decision guide
- Yard Drainage Fix — full project walkthrough
- Excavation in Pennsylvania — local pricing & climate
- Read the field guide on the blog — practitioner-level detail
- Related engineering article — from our licensed engineer
Reviewed: · Part of the CalculatorAsphalt Construction Glossary · Sources: see methodology & standards.