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18x18x18 Heavy Duty Shipping Boxes, Kraft

Pack and confidently ship your items using our 18x18x18 box heavy-duty single-wall boxes.

  • Rock-Solid Construction: Manufactured from ECT-44 single wall kraft corrugated material, these boxes provide superior durability and strength. Perfect for shipping heavier contents that need extra support.
  • Stronger Than Ever: These cartons are 40% stronger than standard shipping containers, offering enhanced protection for valuable items. Ideal for handling the bumps and jostles of shipping.
  • Ultimate Versatility: Our heavy-duty single-wall boxes are perfect for a variety of items, including electronics, books, kitchenware, tools, and other heavy goods. They handle it all with ease and reliability.
  • Stock Up with Ease: Sold in convenient bundle quantities, making stocking up in your warehouse or office a breeze. All boxes ship flat and are easy to assemble, saving you space and time.
  • Efficient Packing: Save time and energy by using our heavy-duty boxes. Simply build, insert your items, and seal securely. Use appropriate void fill packaging to protect your items during transit.


18x18x18 Heavy Duty Shipping Boxes, Kraft

P185
18x18x18 Heavy Duty Shipping Boxes, Kraft

Pack and confidently ship your items using our 18x18x18 box heavy-duty single-wall boxes.

  • Rock-Solid Construction: Manufactured from ECT-44 single wall kraft corrugated material, these boxes provide superior durability and strength. Perfect for shipping heavier contents that need extra support.
  • Stronger Than Ever: These cartons are 40% stronger than standard shipping containers, offering enhanced protection for valuable items. Ideal for handling the bumps and jostles of shipping.
  • Ultimate Versatility: Our heavy-duty single-wall boxes are perfect for a variety of items, including electronics, books, kitchenware, tools, and other heavy goods. They handle it all with ease and reliability.
  • Stock Up with Ease: Sold in convenient bundle quantities, making stocking up in your warehouse or office a breeze. All boxes ship flat and are easy to assemble, saving you space and time.
  • Efficient Packing: Save time and energy by using our heavy-duty boxes. Simply build, insert your items, and seal securely. Use appropriate void fill packaging to protect your items during transit.


Sold in Bundle Quantities
Starting at $4.12 / Box
Heavy Duty Kraft Corrugated BoxesSold in Bundle Quantities
Model No.Inside Dims.
(L x W x H)
StrengthBundle / Bale QtyPrice Per BoxAdd to Cart
11002505001000+
P18518 x 18 x 18"44 ECT / 275 LB20 / 120$4.12$3.71$3.52$3.34$3.17