Lightweight & Flexible Drainage Boards

A high-performance sub-soil drainage cell system designed for basement drainage, planter box drainage and landscape drainage applications. The modular drainage cells create large internal void spaces that allow efficient water flow beneath soil layers, preventing water stagnation while protecting structures and waterproofing membranes.

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In addition to its drainage function, the DB Series also serves as an effective void filler system, helping to reduce heavy soil load in planter boxes, rooftop landscapes and basement structures. By replacing excessive soil with lightweight structural modules, the system improves drainage efficiency while reducing overall structural loading.

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The modules can be interlocked in a brick-layout configuration, forming a stable and continuous drainage layer that enhances structural integrity and installation flexibility. Designed with high compressive strength, the GrasCell® DB modules are capable of supporting landscape loads while maintaining reliable drainage performance.

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The modular system is also flexible enough to adapt to curved planter boxes and irregular landscape designs, making it ideal for architectural planter systems and complex landscape layouts.

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Manufactured from 100% recycled polypropylene, the GrasCell® DB Series provides a sustainable solution for sub-soil drainage systems, void filler drainage layers, planter box drainage and basement drainage infrastructure, supporting resilient and environmentally responsible urban developments.