Narrative Summary

I ship refurbished car alternators, which are incredibly dense and heavy. I packed a 28-pound unit in a brand-new corrugated box, thoroughly padded with high-density foam. During transit, the bottom of the box completely blew out, and the alternator hit the concrete, cracking the housing. I filed a claim, but UPS denied it instantly. Their letter stated that heavy, dense items require double-walled packaging, and my single-wall box possessed "insufficient burst strength" for the weight.

The Resolution Strategy

Claims adjusters routinely make up "rules of thumb," like demanding double-wall boxes for anything heavy, ignoring the actual structural certification printed right on the carton.

Using the Authori shipping appeal generator, the drafted appeal struck back using UPS Packaging Guidelines § 3.1 and the Box Maker's Certificate (BMC) printed on the bottom flap.

The appeal letter pointed out that the box carried an Edge Crush Test (ECT) rating of 32. According to UPS's own published charts in § 3.1, a 32-ECT single-wall box is officially certified to carry a maximum gross weight of 30 pounds. Because the package weighed 28 pounds, it was explicitly compliant with UPS's weight-to-packaging standards. By mathematically disproving the "double-wall" requirement, the appeal forced UPS to acknowledge the blowout was caused by carrier mishandling rather than a packaging failure. The $250 claim was paid.