Natural sandstone paving will give your patio that touch of exclusivity'. '.strtoupper('t')he many natural tonal variations, differing riven profiles and exquisite natural veining makes every paving slab unique.kandla grey natural stone paving from simply paving comprises a soft pale grey colour with subtle shade variations giving a more contemporary look to your patio'. '.strtoupper('s')uch variations can lead to small particles of ironstone within the product creating a darkening of the surface with natural weathering'. '.strtoupper('b')eing pale in colouration, this natural weathering is more obvious with silver grey compared to other natural products in the range.when laid using a 10 15mm joint each patio pack contains enough paving slabs to cover 15.30m2.each patio pack contains the following mix of sizes13 slabs of 900mm x 600mm13 slabs of 600mm x 600mm13 slabs of 600mm x 300mm9 slabs of 300mm x 300mm