Nonwoven Separation & Drainage

Mirafi 140N is a workhorse nonwoven geotextile, built to separate soil layers and let water pass while holding fines back.

This needle-punched polypropylene fabric is a go-to for subsurface drainage, French drains, and under-aggregate separation, where it keeps base stone from pumping down into soft subgrade and clogging with silt. High flow-through and strong particle retention let it drain freely without losing the soil beneath.

Contractors reach for the 140-class because it balances durability and permeability at a working-grade price. It rolls out fast, conforms to uneven ground, and stands up to installation stress on driveways, roadways, drainage trenches, and erosion-control projects where long-term separation matters.

Square Feet / Roll: 4,500
Weight: 150 lbs
Fabric Specifications: Download 140N Specification Sheet

Need a Smaller Sized Roll? View our Full Selection of 140N Sizes >

Michigan MDOT Note:

This fabric meets the specifications as outlined in the MDOT requirements for the described material use. It is the purchaser's responsibility to verify this information independently. For further specification information please view the TENCATE / Solmax DOT Chart >

Michigan MDOT Geotextile Fabrics