Abstract: A wall-unit hanging system for hanging shelves, cabinets, drawers or the like on a wall is described. The system includes a mounting rail and one or more vertical panels. Each vertical panel has a cut-out portion and an associated bracket for securing the vertical panel to the mounting rail. The vertical panel is secured to the mounting rail by moving the panel perpendicularly with respect to the wall until the panel is flushed with the wall and the cut-out portion has received the mounting rail. The mounting bracket engages a projection in the mounting rail in order to secure the vertical panels to the mounting rail.