Installing Driveway Fabric
A helpful illustrated guide covering the 3 grades of woven geotextile fabric, step-by-step installation, and the most frequently asked questions — plus resources for further technical reading.
What this guide covers
We'll address the most frequently asked questions on installing geotextile fabric for driveways and what products to use. At the end of the page you can find a few additional resources if you're interested in diving into some further technical reading.
Two questions homeowners ask first
Prior to digging into the “How To's” of installing driveway fabric, let's start with a couple commonly asked questions by homeowners regarding fabric for driveway or paving installations.
Is it really necessary to put fabric under my gravel driveway?
Yes, if you want your driveway to last. Having geotextile driveway fabric under your gravel driveway will prevent you from continually needing to add more aggregate base to your road since the rock will drop into the subgrade layer. A separation and stabilization fabric layer below the driveway reduces the amount of gravel needed during the initial installation and required maintenance in the future.
How does driveway fabric work?
Driveway fabric works by providing a separation layer between the driveway gravel and the earth below. Due to its high tensile strength the fabric acts as a stabilizing layer and reduces the amount of rock required by up to 30% which results in a reduction of labor and overall cost.
Classes of Woven Fabrics
There are three grades of woven geotextile fabric. The right choice depends on your site and its drainage situation — note the inverse relationship between strength and flow rate as you move up the grades.
Standard Grade
A single sheet with very low to non-permeability. Standard grade does not drain as well as higher grade fabrics.
Ideal use: Great for separating soils or aggregates. Commonly used in residential applications. Best placed in dry areas with relatively low surface water.
Intermediate Grade
Monofilament weave with higher tensile strength fabric than standard grade, but allows dissipation of water. There is an inverse correlation to the strength and flow-through rate, with higher strength comes reduced flow rate.
Ideal use: Can be used for all 5 of the functions of a geotextile fabric: separation, stabilization, filtration, drainage, & reinforcement. Great for any residential or commercial driveway application.
Heavy Duty Grade
Woven with both rectangular and round fibers for a “3D weave.” This has the highest strength of all the woven fabrics with none of the drawbacks. Heavy-duty grade enables water to flow through extremely well.
Ideal use: Can be used for all 5 of the functions of a geotextile fabric: separation, stabilization, filtration, drainage, & reinforcement. Great for any residential or commercial driveway application.
Installing Driveway Fabric in 4 Steps
Site Preparation
Prepare the site and remove all vegetation from the area. This could include shrubs, grass or other brush that might be in way of the path.
The surface of the subgrade soil should be both smooth and level, grade the entire area to remove any high spots or depressions in the ground. A uniformly flat dirt path is critical as it ensures a good foundation from which to lay down the fabric and build your aggregate base on.
If you have any wet or damp subgrade please consult your project engineer as more may need to be done to ensure a stable base layer level.
Note: If you are landscaping your driveway border we also offer our weed block fabric available in multiple widths.
Lay the Fabric
Install the woven geotextile fabric roll in the same direction as indicated on the project plans. By orienting in the correct direction, it will ensure a long life of the pathway and the product will perform to its full design strength.
Typical roll sizing for woven fabrics range from 12.5’–17.5’ wide. It's good to keep this in mind when ordering as it will typically be delivered by a less than truckload (LTL) freight truck.
Secure with Staples
Once all the fabric is on the ground, you'll need to secure it so that it does not move. Use standard 6” landscape staples or pins to secure the fabric to the ground and prevent it from shifting or moving over time.
Use approximately 1 staple every square yard of material — or if you're just stapling the sides and center, 1 staple for every 3 linear feet.
Add & Spread the Base Material
Finally, add the base material on top of the geotextile fabric. If you're adding aggregate rock to your driveway then it's recommended to have a minimum of 8–12 inches depth of rock on top of the fabric and potentially much more depending on the composition/stability of your subgrade and what is indicated on the project plan.
You are able to drive on the fabric before the base is on top in order to dump the crushed rock, however go slow, less than 10 mph and be careful not to stop abruptly or make any sharp turns as that may damage the fabric material.
Once you have laid the stable base then it's time to compact the gravel down using a compacting tool or appropriate loader vehicle with the correct attachment.
Other Frequently Asked Questions
The following are more commonly asked things we respond to when addressing the topic of driveway fabric installation.
What is the best kind of fabric for driveways? ⌄
What is the best base material for a driveway? ⌄
How much does driveway fabric cost? ⌄
Where can I buy driveway fabric? ⌄
Can driveway fabric be used for erosion control? ⌄
What do I do if the fabric is damaged during installation? ⌄
Conclusion
For driveway and road applications it's best practice to use a woven geotextile fabric to ensure the longevity and life of your roadway. By separating the subgrade and base layers you can reduce rutting and potholes and increase surface drainage. If your application will encounter a decent amount of water runoff then use the Intermediate or Heavy Duty Fabric.
For questions regarding custom project quotes, or to speak with a geotextile product specialist contact us at (800) 520-7731, or email us your questions at support@profabricsupply.com
