Customers walk through our front door and say, “I need a box.” Our first response is, “Are you moving or shipping?” What’s the difference? Standard moving boxes from big-box stores, moving and storage rental businesses, or packing and shipping stores are not as sturdy as shipping boxes. Some have pre-cut side handles, which work well for moving. A box shipped with UPS, FedEx, or DHL does not necessarily remain upright in its journey, so small items might escape through the holes. Moving boxes are great for packing and moving everyday items, but even packing a heavier item for moving requires a sturdier box, or possibly a crate.
How do you know the strength of a box simply by looking at it? The bottom flap will most likely contain one of two stamps indicating the strength test certification for that box. For single-wall corrugated boxes, the stamp indicates Edge Crush Test (ECT 32) or Bursting Test 200#. Lee Fredrickson, owner of the Cedar Rapids Pak Mail, co-authored a franchisee newsletter article a number of years ago about box quality. The difference between the two tests (ECT and Bursting Test) is the orientation of the testing equipment – up and down on a vertically oriented sample of the corrugated (edge crush) or from the sides (burst). The strength of an ECT 32-stamped box can vary depending on the weight of the facing paper, which is not part of the ECT process and subsequently not controlled. A 200-pound Bursting Test carton will have minimum rated facing weights totaling 100 pounds (half the Bursting Test), using at least 50-pound paper on each facing.
Some moving and storage businesses claim their boxes are approved for shipping with UPS and FedEx. That’s true, but the statement is typically based on the ECT 32 rating and the box would only be suitable for soft light-weight, non-fragile items. Even when using the small moving box for moving books, the pre-cut handles should be reinforced with tape.
Are you moving or shipping? Choosing the right box can make all the difference in getting your treasures to their new home safely.
Bursting Test 200# stamp
Bursting Test 200# stamp
Edge Crust Test 32 stamp
