A product packaging system in one embodiment includes a stack of products defining a pair of opposing major side surfaces, a top surface, a bottom surface, and pair of opposing end surfaces; protective corrugated sheets covering two or more of the stack side, top, and bottom surfaces; and a protective end pad covering each of the stack end surfaces. Each protective corrugated sheet includes a pair of longitudinally-extending and protruding corner reinforcement structures disposed along corner regions of the stack. The reinforcement structures are three-dimensional structures having different possible configurations which provide crush-resistance in the assembled product package. The product package collectively comprising the foregoing components is insertable into an outer shipping carton for transit. Some embodiments include banding which holds the stack of products together. In one embodiment, the products may be mirrors.
