Wallbarn stackable plastic support pads are manufactured from injection moulded high density plastic. The paving slabs are suspended on the pads, so that the corner of four slabs rests on four segments of the pad. The 4mm positioning lugs separate the slabs to ensure sufficient drainage. The rainwater will pass through these gaps and underneath towards the roof outlet or gully. The whole paving scheme is held together by the weight of the paving slabs. They act as a guide when laying paving, ensuring uniform positioning which saves a considerable amount of time in application and they also help to prevent the build-up of dirt and other material between the slabs. To provide support up to the paving edge, the pedestal can be snapped into segments. Properties Lug width: 4mmMaterial: HDPEWeight tolerance: 1,000kgThickness: 14mmNumber of drainage holes: 8mm per channel (4 per pad)Lug Height: 10mm