In some applications stacking of Permavoid units to create a higher void space is necessary. For these installations the Shear Connector was developed.

Strong connection

It connects the units vertically to prevent sideways movement, creating a stable stack. The Shear Connector can be inserted into any of the holes on the top and bottom side of the Permavoid unit, enabling the designer to decide the desired height and bond between the units.

Specs & downloads

Everything you need to know.

Technical data

35 x 35 x 40 mm (l x w x h, approx.)
Polypropene (CoPo)
approx. 11 g
Material description
Frost resistant, hydrofoob, inert, acid and hydrocarbon resistant, impervious to bacterial and fungal growth
Coefficient of Lineair Thermal Expansion
0,0004 - 0,0008 m/m K
> 50 years


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Permavoid source control ensures that no precious water goes to waste by catching, storing and reusing stormwater for irrigation, evaporation and infiltration. Find your local Permavoid distributor here to learn more about the technology and become part of the international movement.