Mirafi 140N Geotextile Fabric - 15' x 360' Roll - Solmax
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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: 5,400
Weight: 198 lbs
Fabric Specifications: Download 140N Specification Sheet
Need a Smaller Sized Roll? View our Full Selection of 140N Sizes >
Why Choose Mirafi 140N?
5 reasons engineers specify Mirafi N-Series over generic nonwoven geotextiles
Made in Georgia — USA
Mirafi N-Series fabrics are produced in the state of Georgia and can meet Build America / Buy America (BABA) requirements — a qualification many imported generic geotextiles simply cannot meet.
Third-Party Verified Specifications
Mirafi 140N is tested to ASTM D4751, D4491, D4632, and D4355 standards with published, verifiable data. Generic fabrics frequently carry unverified or inflated property claims.
Proven Filtration Performance
The 140N's needle-punched structure delivers consistent AOS (Apparent Opening Size) and permittivity values that meet drainage and separation design requirements without over-filtering or clogging under load.
Trusted on DOT Projects Nationwide
Mirafi N-Series geotextiles have been specified on state and federal infrastructure projects for over 40 years. Engineers reach for Mirafi by name because the performance history is there.
BABA-Compliant When Required
Domestic manufacturing in Georgia means Mirafi 140N can satisfy Build America / Buy America requirements on federally funded projects — giving you compliance confidence that offshore fabrics cannot provide.


