30" tall x 21" deep cabinets. These are good quality, plywood cabinets with dovetail maple (I think) drawers. If your space is limited the countertop could be removed and the cabinet units separated into two 18" wide drawer units and one 36" wide sink base unit. Then could be re-assembled into a smaller drawer/sink base unit or just the sink base alone. The countertop could then be cut to fit.