--- title: "Non-Woven Geotextile Drainage Fabric | Sizes, Specs, Prices" date: 2022-03-05 author: "Pawan Khatri" url: https://oceangeosynthetics.com/non-woven-geotextile-drainage-fabric-sizes-specs-prices/ --- March 5, 2022 | [Geotextile](https://oceangeosynthetics.com/category/geotextile/), [Insights](https://oceangeosynthetics.com/category/insights/) # Non-Woven Geotextile Drainage Fabric | Sizes, Specs, Prices ![](https://oceangeosynthetics.com/wp-content/uploads/2022/03/Capture-7-300x238.png) [Nonwoven geotextile](https://oceangeosynthetics.com/products/geotextile-manufacturers/) can be made in several ways, but most is needle-punched: a mat of short synthetic fibres is passed through boards of barbed needles that push the fibres through each other and lock them into a felt-like fabric. Non-woven geotextile is a permeable fabric, usually made from polypropylene or polyester, used for drainage, filtration, separation and [erosion control](https://oceangeosynthetics.com/solution/erosion-control/). Because the fibres form a thick, open web, water passes through the fabric quickly while soil particles are held back. That is why it is the standard filter wrap around drains. ## Non-Woven Geotextile Fabric Weight Categories: Weights below are in ounces per square yard (oz), as many charts quote them. In India the same fabric is specified in GSM (grams per square metre); 1 oz/sq yd is about 34 GSM. ### Lightweight (2 oz. to 3 oz) About 70–100 GSM. High flow rates, cushioning under-layers and drain-field applications. The 3 oz weight is often used behind retaining walls as a filter between the backfill soil and the drainage gravel. ### Medium weight (4 oz. to 6 oz) About 135–200 GSM. A medium-weight non-woven fabric lets water through without washing out the soil behind it. It is used for erosion control, separation and drainage (French drains), and under gravel paths as a separation layer between the gravel and the soil underneath. ### Heavyweight (8 oz. to 16 oz) About 270–540 GSM. Heavyweight non-woven fabrics are used where the fabric must resist puncture and survive rough installation: behind large rip-rap, and as a cushion layer under or over a [geomembrane](https://oceangeosynthetics.com/products/ocean-geomembrane/) in containment ponds and artificial lakes. At the upper end of the range (10 oz +) the extra thickness noticeably lowers the flow rate through the fabric (its permittivity, tested to ASTM D4491), so check that value if drainage is the main function. Heavy non-woven is also used as a separation layer for sand under volleyball courts (8 oz), and to stop ballast mixing with the soil beneath railway tracks (16 oz). ## Non Woven Geotextile Specification Charts ![](https://oceangeosynthetics.com/wp-content/uploads/2022/03/Capture-4-300x105.png) ![](https://oceangeosynthetics.com/wp-content/uploads/2022/03/Capture-5-254x300.png) ## Non-Woven Geotextile characteristics - Polypropylene fibres - Needle-punched construction - Rot-resistant fabric ## Non-Woven Geotextile advantages - Stable, dimensionally consistent fabric - Suited to filtration and drainage - Available in a range of weights and strengths ## How much does geotextile fabric cost? Geotextile prices vary widely with type, weight and roll size. As an indicative range, a roll of low-grade fabric can cost around Rs.15000, while a roll of high-strength woven geotextile can cost upwards of Rs.2L. Prices change with polymer rates and order quantity, so ask for a current quote against your GSM and roll size. ## Does water go through geotextile fabric? Yes. Needle-punched and spunbonded non-woven geotextiles let water flow through easily, which is why they are used for [landscaping](https://oceangeosynthetics.com/suitable_sectors/landscaping-and-sports-infrastructure/) drainage, filtration and ground stabilisation. ## Nonwoven Geotextile Filter Fabric and further Applications ![](https://oceangeosynthetics.com/wp-content/uploads/2022/03/Capture-6-300x260.png) The right weight of non-woven filter fabric depends on the application. Lighter fabrics, such as 4 oz non-woven geotextile, are used in drainage and landscaping. A light non-woven paving fabric saturated with bitumen tack coat is also laid between asphalt layers to slow reflective cracking. Medium-weight fabrics, such as 6 oz and 8 oz non-woven geotextile, are used for stabilisation, erosion control and sewer and drainage works. Drainage is the most common use. Non-woven filter fabric is wrapped around French drains and underground drains to keep silt out while letting water in. Heavyweight fabrics, such as 10 oz non-woven geotextile, go where strength matters: road stabilisation and geomembrane cushioning. Ocean Geosynthetics supplies both woven and nonwoven geotextile and can recommend a grade for your application. See also [does water go through geotextile fabric?](https://oceangeosynthetics.com/does-water-go-through-geotextile-fabric/) Get Ocean Geosynthetics in your Google feed[![](https://oceangeosynthetics.com/wp-content/uploads/2026/07/google-g-logo.svg)Add us as a preferred source on Google](https://www.google.com/preferences/source?q=https://oceangeosynthetics.com/) [![Case Study: Enhancing Railway Infrastructure in Gadchiroli, Maharashtra with Ocean Geocomposite 700 GSM](https://oceangeosynthetics.com/wp-content/uploads/2025/04/Capture-300x201.png)](https://oceangeosynthetics.com/railway-infrastructure-maharashtra-700-gsm/) [Case Studies](https://oceangeosynthetics.com/category/case-studies/) [Case Study: Enhancing Railway Infrastructure in Gadchiroli, Maharashtra with Ocean Geocomposite 700 GSM](https://oceangeosynthetics.com/railway-infrastructure-maharashtra-700-gsm/) Project overview For a railway infrastructure project in Gadchiroli, Maharashtra, Ocean Non Wovens supplied and installed 10,000 square meters of Ocean Geocomposite 700 GSM to… [See More](https://oceangeosynthetics.com/railway-infrastructure-maharashtra-700-gsm/) [![Railway Drainage and Erosion Protection Using GCCM in Wardha, Maharashtra](https://oceangeosynthetics.com/wp-content/uploads/2026/03/1-3-300x200.webp)](https://oceangeosynthetics.com/gccm-railway-drainage-erosion-control/) [Case Studies](https://oceangeosynthetics.com/category/case-studies/) [Railway Drainage and Erosion Protection Using GCCM in Wardha, Maharashtra](https://oceangeosynthetics.com/gccm-railway-drainage-erosion-control/) On a railway project in Wardha, Maharashtra, Ocean Non Wovens supplied 1,160 SQM of Ocean Geosynthetic Cementitious Composite Mat (GCCM) 5 MM to line drainage… [See More](https://oceangeosynthetics.com/gccm-railway-drainage-erosion-control/) [![](https://oceangeosynthetics.com/wp-content/uploads/2022/04/WhatsApp-Image-2022-04-06-at-3.23.54-PM-300x135.jpeg)](https://oceangeosynthetics.com/etp-plant-waste-water-treatment-in-chandigarh-case-study/) [Case Studies](https://oceangeosynthetics.com/category/case-studies/) [ETP Plant / Waste Water Treatment in Chandigarh – Case Study](https://oceangeosynthetics.com/etp-plant-waste-water-treatment-in-chandigarh-case-study/) Ocean Non Wovens supplied 43500 sq mtr of 1.5mm HDPE geomembrane for an effluent treatment plant (ETP) and wastewater treatment project in Chandigarh. 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