Heavy Duty Double Wall Corrugated Box 12 x 12 x 4

12" x 12" x 4" 32ECT DW RSC Box 25/bd Our Flat boxes posses a smaller depth and are great for storing and shipping shallow, round, or flat products. Some common objects stored in flat cardboard boxes are mirrors, picture frames, books, bedding, and clothing. Flat cartons also tend to be easy to unload because of their wide openings.