The UPS driver commented when he picked up a box of a pair of electrostatic speakers from my house "This is a big box, big boxes don't do well, I hope it makes it". WELL, it didn't make it. All the above comments apply to this case. I never got reimbursed. They said I didn't take out the insurance. (I have always taken out insurance)
SO, build a wooden box around the outside cardboard box OR plan a vacation to deliver or pick up the item. Yes, more time consuming and more money but it beats having your property destroyed.