Abstract: Apparatus for mounting cabinets such as kitchen cabinets is disclosed. In addition, apparatus to provide for the mounting of trim panels above cabinets is disclosed. The cabinet mounting structure disclosed includes interlocking channel apparatus for mounting cabinets to walls and apparatus for mounting one cabinet to another cabinet with an adjustable space between the cabinets. The structure disclosed for accommodating trim panels above the cabinets comprises channel apparatus having formed therein channels for slidably housing the trim panels. The apparatus of this invention provides for a complete cabinet installation.