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International Plastics, Inc.


Corrugated Boxes

Wholesale Shipping Boxes & Containers...
We have the right box for you!

Which box is right for me to use for packaging? This box guide will help provide the answer.

200 lb. Test or 32 ECT Boxes? What’s the difference?

  • Eliminate costly returns due to shipping damage. Choosing an incompatible cardboard box for a desired shipping or packaging need may not help it or it’s contents survive the perils of everyday handling.
  • International Plastics and UPS recommend 200 lb. test boxes. They provide more strength and protection than 32 ECT boxes which are a budget-friendly alternative for lightweight shipments
  • International Plastics 200 lb. test boxes are made with heavier paper and have 60% greater bursting strength than 32 ECT boxes.
  • Providing substantial bursting strength means negligible crushed or damaged boxes and content during shipping.
  • International Plastics 100% satisfaction guarantee assures that we stand behind any of our products and that we refuse to sacrifice the quality of our boxes.

How to Measure a Box

  • Listed dimensions are always inside dimensions.
  • Length is always the longest side of the box that has a flap.
  • Width is the shorter side of the box that also has a flap.
  • Depth measurements do no have a flap.
  • NOTE: Acceptable manufacturing variance is approx. +/- 1/8”

Helpful Hints

  • The first dimension is Length.
  • The second dimension is Width
  • Depth is the 3rd dimension and the only side without a flap..
  • To ship via UPS or FedEx®, surround each item with 2” of packing material and place each item 2” away from the walls of the box.
  • To ship via USPS, surround each item with packing materials until items are no longer moving around in the box.
  • Air Pillows
  • Bubble Bags
  • Bubble Wrap
  • Convoluted Foam
  • Foam Rolls
  • Kraft Paper Rolls & Sheets
  • Newspint Sheets
  • VCI Rolls & Sheets

See Other Related Mailing and Shipping Supplies

Poly Mailers - Packing List Envelopes - Packing Tape


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