40 x 12 x 12" Double Wall Boxes

These 40 x 12 x 12 inch double wall corrugated boxes are built for heavy, dense, or high-value shipments that exceed the capacity of standard single wall cartons. ECT-48 double wall kraft construction delivers superior stacking strength and puncture resistance where standard boxes fall short.

The 40 inch elongated profile makes these boxes a practical choice for automotive parts, industrial hardware, textile rolls, sporting equipment, and long consumer goods that cannot be accommodated by cube-format boxes. Distribution centers, manufacturers, and e-commerce operations handling oversized or heavy SKUs rely on this format to protect contents through multi-leg transit.

Each box ships flat to minimize storage footprint on the warehouse floor. Boxes weigh approximately 2.97 lbs each and are sold in bundles of 10, making it easy to stock quantities matched to your actual throughput.