There is a minimum order of 20 x bags unless ordering with a bulk bag of building materialsr r when working with a 4 parts sand to 1 part cement ratio you will require approximately nine 25kg bags of cement per bulk bag of sand r r building materials are delivered usually on the same day as your patiodriveway products and are provided by a simply paving contracted merchant from your arear r delivery is made with a crane vehicle for this product r r unfortunately we are unable to spe