A hardware system for mounting a structure includes at least one roller assembly and a base surface. A roller assembly includes a substantially round outer ring, a substantially round inner ring, and a frame that structurally engages at least a portion of a side surface of the inner ring. The frame and the side surface of the inner ring remain stationary with respect to each other when the outer ring rotates about its axis of rotation. One or more roller assembl(ies) may be included within a hardware system for mounting a structure such as a door panel, a window panel, a window covering, a decoration or the like that is able to be rolled along a base surface by the roller assembly.