I installed this paver patio this week and was wondering if someone could help me out with installing stairs. Does anyone have any recommendations on how to install these. The ledge is approximately 18" above the pavers. Is there a problem setting the stone directly on the existing pavers for the stairs using adhesive to hold them in place? What do you do against the house if you put a gravel base under the stairs? Let me know what the typical installation is. Thanks.