Storage shelf

FIG. 1 is a front, right, and top perspective view of a storage shelf showing our new design;

FIG. 2 is a rear, left, and bottom perspective view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a left side elevation view thereof;

FIG. 6 is a right side elevation view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof.

The broken lines in the drawings depict portions of the storage shelf that form no part of the claimed design.