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Cirtex Rock Bags

Flexible and sustainable solution to gabions and rip rap with many benefits

Cirtex Rock Bags are a flexible durable rock filled net bag providing a versatile, environmentally friendly alternatives to concrete, gabions, and rock rip rap revetments and used to prevent scour and erosion in waterways and marine environments.

Available in 2 ton and 4 ton units, manufactured from a high durable UV resistant polyester net and filled on site with rock and lifted into place to provide the erosion protection structure they provide a fast, durable and cost effective solution.

The smaller graded rock within the net bags  reduces flow velocities by absorbing water energy into the high interstitial spaces between the rocks. These high interstitial spaces also provide enhanced habitat for invertebrates, accrete fines, gravels and silts which allow vegetation to establish naturally over time.

Cirtex Rock Bags can be used independently or as part of a bioengineering design with vegetated systems above water level, providing a very effective scour and erosion control solutions.  Working with nature rather than against it to provide habitat biodiversity simultaneously with an engineered approach for asset protection.

Benefits of Cirtex Rock Bags:

  • Flexibility: Cirtex Rock Bags effortlessly conform to the shape and contours of the underlying surface allowing them to be placed on uneven surfaces and still providing a effective erosion protection solution allowing.
  • Quick to install: The Cirtex Rock Bags are extremely fast to fill and place allowing the projects to be completed quickly and with minimal cost and delays.
  • Versatile: Cirtex Rock Bags can be used in a wide range of erosion protection and scour applications making them a valuable tool for engineers and contractors to deploy during and after extreme weather events.

Reach out to find out how Cirtex Rock Bags can assist your projects.


Frequently Asked Questions

Cirtex Rock Bags material is a virgin polyester. It is ideal for hydraulic works as it is rust-proof, non-corrosive, rot proof, and weather resistant. It can withstand exposure to ultraviolet, salt water and fresh water

We recommend using 50-200mm rocks in the 2 ton and 4 ton. For the 8 ton, 75-200mm is suitable.

Benefits & Features





60579 Rock Bag 1Ton (Polymer Double Net Bag) & Ring
60496 Rock Bag 2Ton (Polymer Double Net Bag) & Ring
60580 Rock Bag 4Ton (Polymer Double Net Bag) & Ring
60581 Rock Bag 8Ton (Polymer Double Net Bag) & Ring

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Please note:

Cirtex stocks the Triton S22 Chambers. When using the calculator, please ensure you change 'chamber selection' to S-22.

RainSmart Assembly Guides

4 Plate Modules

RainSmart Assembly Guides

5 Plate Modules

RainSmart Assembly Guides

7 Plate Modules