Stone Edge Surfaces Southern Ledgestone vertical decorative concrete stamp set for Stamped Concrete, Decorative Concrete, Concrete Overlay. The Southern Ledgestone stamp set is in our drystack stamp family and comes as a set of 3 large stamps. The stamps have an incredible stack stone look, but are big and may need 2 people to use them, with each stamp having two handles for application control. Each stamp is approximately 18′ x 30″ in size and are meant to be rotated 180 degrees to double the pattern, so 3 stamps can give 6 looks. For best results, always rotate the order of the 3 stamps so you do not create a predictable pattern.