--- title: Sheet Drains description: Prefabricated soil sheet drain and protection board consisting of a formed polystyrene core covered on one side with a non-woven, needle-punched polypropylene filter fabric on the dimple side of the core. The fabric allows water to pass into the drain core while restricting the movement of soil particles that might clog the core. --- [![Geotex Logo-2](https://www.geotex.com.au/hs-fs/hubfs/Geotex%20Logo-2.png?width=100&height=27&name=Geotex%20Logo-2.png "Geotex Logo-2")](https://www.geotex.com.au?hsLang=en-au) Open menu - PRODUCTS - GEOTEXTILES - [MINI ROLLS](https://www.geotex.com.au/products/geotextiles/minirolls?hsLang=en-au) - [ORANGE MARKER LAYER](https://www.geotex.com.au/products/geotextiles/orangemarkers?hsLang=en-au) - [GT SERIES](https://www.geotex.com.au/products/geotextiles/gtseries?hsLang=en-au) - GEOGRIDS - [COMPOSITE PP GEOGRID](https://www.geotex.com.au/products/geogrids/compositepp?hsLang=en-au) - [BIAXIAL PP GEOGRID](https://www.geotex.com.au/products/geogrids/biaxialpp?hsLang=en-au) - [UNIAXIAL PET GEOGRIDS](https://www.geotex.com.au/products/geogrids/uniaxialpet?hsLang=en-au) - DRAINAGE SYSTEMS - [AGRICULTURAL PIPES](https://www.geotex.com.au/products/drainage/agpipes?hsLang=en-au) - 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GEOGRIDS - [COMPOSITE PP GEOGRID](https://www.geotex.com.au/products/geogrids/compositepp?hsLang=en-au) - [BIAXIAL PP GEOGRID](https://www.geotex.com.au/products/geogrids/biaxialpp?hsLang=en-au) - [UNIAXIAL PET GEOGRIDS](https://www.geotex.com.au/products/geogrids/uniaxialpet?hsLang=en-au) - DRAINAGE SYSTEMS - [AGRICULTURAL PIPES](https://www.geotex.com.au/products/drainage/agpipes?hsLang=en-au) - [DRAINAGE CELLS](https://www.geotex.com.au/products/drainage/drainagecells?hsLang=en-au) - [SHEET DRAINS](https://www.geotex.com.au/products/drainage/sheetdrains) - EROSION CONTROL - [SILT SOCKS](https://www.geotex.com.au/products/erosion/siltsocks?hsLang=en-au) - [SILT CURTAINS](https://www.geotex.com.au/products/erosion/siltcurtains?hsLang=en-au) - [SILT FENCES](https://www.geotex.com.au/products/erosion/siltfences?hsLang=en-au) - [COIR LOGS](https://www.geotex.com.au/products/erosion/coirlogs?hsLang=en-au) - [JUTE MESH](https://www.geotex.com.au/products/erosion/jutemesh?hsLang=en-au) - APPLICATIONS - [ROADS AND RAIL](https://www.geotex.com.au/applications/roadandrail?hsLang=en-au) - [GROUND AND PAVING IMPROVEMENTS](https://www.geotex.com.au/applications/ground-improvement?hsLang=en-au) - [SOIL REINFORCEMENT](https://www.geotex.com.au/applications/soil-reinforcement?hsLang=en-au) - [MINING](https://www.geotex.com.au/applications/mining?hsLang=en-au) - [RETAINING WALLS AND SLOPES](https://www.geotex.com.au/applications/retaining-walls-and-slopes?hsLang=en-au) - [EROSION CONTROL](https://www.geotex.com.au/applications/erosioncontrol?hsLang=en-au) - [ENVIRONMENTAL](https://www.geotex.com.au/applications/environmental?hsLang=en-au) - [ABOUT US](https://www.geotex.com.au/about-us?hsLang=en-au) - [SUSTAINABILITY](https://www.geotex.com.au/sustainability?hsLang=en-au) - [BROCHURE](https://www.geotex.com.au/brochures-and-catalogs?hsLang=en-au) - [CONTACT US](https://www.geotex.com.au/contact-us?hsLang=en-au) [ENQUIRE NOW](https://www.geotex.com.au/products/drainage/sheetdrains#enquire-now) # SHEET DRAINS Select a tab Description Specifications Downloads Our sheet drain is a durable, dimpled HDPE drainage composite with a geotextile layer that protects waterproofing membranes and ensures reliable drainage around foundations, basements, and underground structures. Lightweight and easy to install, it efficiently channels water away while preventing soil clogging, making it a smart alternative to traditional gravel systems. | DRAINAGE PROPERTIES | UNITS | SD10 | SD20 | | --- | --- | --- | --- | | CORE STRUCTURE |   | Single-Sided Cuspated Flat Back | Single-Sided Cuspated Flat Back | | CORE MATERIAL | Polymer | HDPE | HDPE | | CORE THICKNESS | mm  | 10 | 20  | | CORE OPEN VOLUME | % | > 90 | > 90 | | SHEET THICKNESS | mm  | 1.0  | 1.0  | | FLOW RATE | l/m2/s | > 180 |  > 180 | | WIDTH | m |  1.4 | 1.4  | | LENGTH  | m | 20  | 20  |   For detailed specifications or any questions, please [email us](mailto:julian@geotex.com.au), and we’ll be happy to help. Description Specifications Downloads Our sheet drain is a durable, dimpled HDPE drainage composite with a geotextile layer that protects waterproofing membranes and ensures reliable drainage around foundations, basements, and underground structures. Lightweight and easy to install, it efficiently channels water away while preventing soil clogging, making it a smart alternative to traditional gravel systems. | DRAINAGE PROPERTIES | UNITS | SD10 | SD20 | | --- | --- | --- | --- | | CORE STRUCTURE |   | Single-Sided Cuspated Flat Back | Single-Sided Cuspated Flat Back | | CORE MATERIAL | Polymer | HDPE | HDPE | | CORE THICKNESS | mm  | 10 | 20  | | CORE OPEN VOLUME | % | > 90 | > 90 | | SHEET THICKNESS | mm  | 1.0  | 1.0  | | FLOW RATE | l/m2/s | > 180 |  > 180 | | WIDTH | m |  1.4 | 1.4  | | LENGTH  | m | 20  | 20  |   For detailed specifications or any questions, please [email us](mailto:julian@geotex.com.au), and we’ll be happy to help. IMAGE GALLERY - ![Sheet Drains Image Gallery 1](https://www.geotex.com.au/hs-fs/hubfs/Sheet%20Drains%20Image%20Gallery%201.jpg?width=1920&height=1080&name=Sheet%20Drains%20Image%20Gallery%201.jpg) - ![Sheet Drains Image Gallery 2](https://www.geotex.com.au/hs-fs/hubfs/Sheet%20Drains%20Image%20Gallery%202.jpg?width=1920&height=1080&name=Sheet%20Drains%20Image%20Gallery%202.jpg) - ![Missing Image](https://www.geotex.com.au/hs-fs/hubfs/Missing%20Image.jpg?width=1920&height=1080&name=Missing%20Image.jpg) - ![Missing Image](https://www.geotex.com.au/hs-fs/hubfs/Missing%20Image.jpg?width=1920&height=1080&name=Missing%20Image.jpg)   ## Footer [![Geotex Logo-2](https://www.geotex.com.au/hs-fs/hubfs/Geotex%20Logo-2.png?width=120&height=32&name=Geotex%20Logo-2.png "Geotex Logo-2")](https://www.geotex.com.au/?hsLang=en-au) Building Australia one project at a time   Julian Gerbino - Manager E: julian@geotex.com.au M: 0481 333 632 LinkedIn Facebook Instagram Square ### PRODUCTS - Geotextiles - Geosynthetics ### APPLICATIONS - Civil Construction - Drainage Solutions - Landscaping Solutions - Pricing © 2026 GEOTEX. 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