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Permavoid 85 is an 85mm thickness modular interlocking plastic storage system designed for use as a combined drainage component and sub-base replacement system. It has exceptionally high compressive strength and bending resistance within joints and creates a horizontal structural ‘raft’ within the pavement that is ideal for the shallow attenuation and conveyance of surface water on podium decks and within sports pitches and equestrian arenas.
Permavoid 85 is available in two sizes: