Geogrid & Geocell Underlayment Fabric | Non-Woven Geotextile(8 oz) - USA Made

Heavy Duty Geogrid & Geocell Underlayment Fabric

Sandbaggy Geogrid and Geocell Underlayment Fabric is a commercial-grade underlayment fabric designed for use beneath geogrid and geocell systems. Installed between the subgrade and reinforcement layer, this fabric helps provide separation, filtration, and drainage support for long-term performance.

This heavy duty fabric is ideal for driveways, roads, gravel underlayment, road base construction, and soil and slope stabilization where maintaining a strong and stable base is critical.

Made in the USA, this 8 oz non-woven geotextile is built for demanding applications and meets key industry standards including NTPEP, AASHTO, and DOT specifications.

Features

• MADE IN THE USA: Manufactured domestically for consistent quality and reliable supply.
• HEAVY DUTY 8 OZ FABRIC: Thicker than standard lightweight fabrics, making it ideal for road base, driveway, and stabilization applications.
• PERMEABLE NON-WOVEN DESIGN: Allows water to pass through while helping retain soil particles, supporting drainage and erosion control.
• STRONG & DURABLE: Built with industrial-grade polypropylene and rated for approximately 205 lbs tensile strength.
• HELPS RESIST INSTALLATION DAMAGE: Thick, needle-punched construction helps the fabric withstand aggregate placement and jobsite handling.
• FLEXIBLE & CONFORMING: Felt-like fabric conforms to uneven surfaces, ideal for slope stabilization and irregular subgrade.
• MEETS INDUSTRY STANDARDS: NTPEP compliant, meets AASHTO standards, meets DOT specifications, and meets Class 1 and Class 2 requirements for non-woven geotextiles.

Why Use Fabric Under Geogrid or Geocell?

Geogrids and geocells reinforce and stabilize aggregate, but without proper separation, soil can migrate into the base and reduce performance over time.

• HELPS PREVENT SOIL MIGRATION: Keeps subgrade soil from mixing into gravel and road base layers.
• MAINTAINS BASE STRENGTH: Helps preserve aggregate thickness for driveways, roads, and parking areas.
• SUPPORTS SOIL STABILIZATION: Improves performance over weak or soft soils.
• ALLOWS WATER FLOW: Helps reduce water buildup and supports drainage.
• IMPROVES LONG-TERM PERFORMANCE: Supports durability of geogrid and geocell systems.

Best Applications

• Gravel Driveways
• Private Roads & Access Roads
• Road Base Stabilization
• Gravel Underlayment
• Parking Pads & Equipment Yards
• Construction Entrances
• Slope Stabilization
• Erosion Control Applications
• Retaining Walls
• Under Pavers & Hardscape Systems
• Under Geocell Systems
• Under Geogrid Reinforcement

Specs

• Material: Non-Woven Polypropylene
• Thickness: 8 oz
• Construction: Needle Punched / Double Punched
• Tensile Strength: Approx. 205 lbs
• Water Flow Rate: Approx. 110 GPM/ft²
• Sieve Rating: 80 US Sieve
• Color: Black
• Compliance: NTPEP Compliant, Meets AASHTO Standards, Meets DOT Specifications

Notes:

• Folded Rolls: >3 ft widths may be folded
• Multiple Pieces: May ship in sections
• Size Variance: ±3% tolerance

Balanced Filtration for Stabilization Projects

This fabric is designed primarily for separation in soil stabilization systems, but filtration still plays an important role.

The 80 US sieve rating helps reduce soil migration while allowing water to pass through. This makes it well suited for gravel underlayment, road base construction, slope stabilization, and erosion control applications where both drainage and separation are needed.

Works With Common Geocell & Geogrid Systems

This underlayment fabric is compatible with most HDPE geocell systems and geogrid reinforcement products. It is installed beneath these systems to support separation, drainage, and long-term performance.

For DOT or engineered projects, always verify requirements with your project plans and specifications.

How It Works

1. Prepare and level the subgrade
2. Roll out the non-woven geotextile fabric
3. Overlap seams based on soil conditions and project requirements
4. Install geogrid or geocell system above the fabric
5. Add aggregate, road base, or gravel and compact

The fabric acts as a separation and filtration layer, helping maintain a stable base for driveways, roads, pavers, and other load-bearing surfaces.

50+ Year Service Life*

This fabric is designed for long-term performance and can last 50+ years when properly installed and buried beneath at least 3 inches of gravel, road base, or similar cover material.

*Actual lifespan depends on installation, soil conditions, and exposure.

Important Installation Notes

• Geotextile fabric supports soil stabilization but does not replace proper base preparation.
• Overlap seams appropriately depending on soil conditions.
• Secure fabric with staples or pins during installation.
• Avoid driving directly on exposed fabric before aggregate is placed.
• Follow engineering or DOT requirements for critical applications.

FAQ

Do I need geotextile fabric under geogrid or geocell?

In many applications, yes. It helps separate soil from aggregate, improves drainage, and supports long-term performance.

Is this fabric good for driveways and roads?

Yes, this heavy duty 8 oz fabric is commonly used for gravel driveways, roads, and road base stabilization where soil separation is important.

Can this be used for erosion control or slope stabilization?

Yes, the permeable design allows water flow while helping stabilize soil, making it suitable for erosion control and slope applications.

Does this work under pavers or retaining walls?

Yes, it can be used under pavers and behind retaining walls to support drainage and separation between soil and aggregate.

How long will it last?

When properly installed and buried, this fabric is designed to last 50+ years depending on site conditions.

Will water pass through the fabric?

Yes, non-woven geotextile fabric is designed to allow water to pass through while helping retain soil particles.

Is this DOT compliant?

This fabric meets NTPEP, AASHTO, and DOT specifications. Always confirm requirements for your specific project.