30 x 17 x 17″ Double Wall Corrugated Boxes, ECT-51 (Heavy Duty), 5/Case: These heavy-duty double wall boxes provide strong protection for bulky or irregularly shaped items. Made from durable ECT-51 kraft corrugated material, they ensure secure shipping and storage. Ideal for consolidating multiple-piece shipments, these boxes offer superior strength and reliability. Sold in cases of 5, they ship flat to save space.

• Heavy-Duty Double Wall Construction �C Built from durable D.W./ECT-51 kraft corrugated material, these heavy-duty packing and shipping boxes provide superior strength for bulky, fragile, or heavy items.
• Ideal for Large & Irregularly Shaped Shipments �C Designed to securely pack and ship oversized or multiple-piece items, making them perfect for industrial, commercial, and warehouse packaging.
• Reliable Protection for Transit & Storage �C The double-wall design adds durability, ensuring that valuable or heavy products remain protected from compression and impact damage.
• Space-Saving Flat Pack Design �C Ships flat for easy storage, reducing warehouse space requirements while lowering shipping costs.
• Versatile Use for Packing & Shipping �C These corrugated shipping boxes are ideal for e-commerce, manufacturing, moving, and bulk packaging needs, providing exceptional stacking strength and load-bearing capacity.