Lay out the position for the upper wall cabinets, placing the lower edge 54 inches off the floor. We computed this distance by adding the height of the base cabinet, thickness of the countertop, and the clearance space underneath the hanging cabinets. The base cabinet will rest on the floor and come up the wall about 34 1/2-inches. The countertop sits on top of that base and occupies about 1 1/2 inches. The bottom of the wall cabinet will start 18 inches above the counter.
