***There is a minimum order of 20 x bags unless ordering with a Bulk Bag of Building Materials.*** Kiln Dried Sand is used for brushing into the jointing between block paviours. (Building materials are delivered usually on the same day as your patio/driveway products and are provided by a Simply Paving contracted merchant from your area. Delivery is made with a craned vehicle for this product and we are unfortunatley unable to deliver building materials on a Saturday. One 25kg bag of Kiln Dried Sand will joint block paving to an area of approximately 6 square metres (using 50mm block paviours).