The Polystorm range of modular cell systems are designed with a 95% void ratio to retain large volumes of water run-off. The Polystorm range of water storage cells are structurally strong, individual modular cells which can be built up to form a structure of any shape or size.

There are four different types of Polystorm cells which are Polystorm Lite, Polystorm, Polystorm Xtra and Polystorm-R. Each Polystorm cell type has a different surface load specification.

  • Polystorm Lite is designed for use in landscaped pedestrian or other non-loaded applications
  • Polystorm is designed for use in lightly trafficked and loaded applications
  • Polystorm Xtra is designed for use in deeper build depths for heavily trafficked and heavy loaded applications
  • Polystorm-R is produced from carefully researched and selected recycled materials to provide an environmentally-friendly solution to surface water drainage and storage applications. Polystorm-R has a 40 tonne per square meter compression strength and is ideal for lightly trafficked and pedestrian applications


  • 95% void ratio: Providing greater water storage capacity and reduced excavation and disposal costs
  • Modular units: Allow flexibility of shape – ideal for shallow excavation systems, narrow strips or use in restricted areas
  • Light weight yet robust: Excellent Health and Safety and installation benefits
  • Easy to handle: Unique rounded corners for ease of handling and reduces likelihood of punctures to membranes
  • Cost effective: Especially when used as a hybrid, value engineered system
  • Recyclable: 100% recyclable at the end of its useful life
  • Range: Spans from 20 tonnes per square meter load bearing capacity up to a maximum of 80 tonnes per square meter load bearing capacity
  • The range can be designed for non-trafficked, trafficked or heavily trafficked applications
  • Suitable for both attenuation and soakaway systems
  • 50 year design life
  • BBA Approved
  • Hybrid Solutions available
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Keytec SUDs can be used as the most efficient capture, transportation, cleaning, infiltration, attenuation and re-use of storm water at source.

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