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Wallbarn stackable plastic support pads are made from high-density injection-moulded plastic. They serve as a foundation for Wallbarn's paving slabs. Four slabs are positioned so the corners rest on four segments of the pad. The 4mm positioning lugs create gaps for rainwater drainage, directing water towards the roof outlet or gully. With 4mm lug width and 10mm lug height, the pads ensure proper spacing and drainage. They have a weight tolerance of 1,000kg and are 17mm thick, featuring 8mm drainage holes per channel, with four per pad. For added support towards the paving's edge, the pedestal can be snapped into segments. Made from HDPE, these pads ensure a robust and efficient paving solution.. Wallbarn 17mm Plastic Paving Pad Black High Density Plastic