FIG. 1 is a front perspective view of an embodiment of a wall mounted storage unit with a nested hinge plate showing my/our new design. FIG. 2 is a front elevation view thereof. FIG. 3 is a left side elevation view thereof, the right side elevation view being a mirror image thereof. FIG. 4 is a rear elevation view thereof. FIG. 5 is a bottom plan view thereof; and, FIG. 6 is a top plan view thereof.