... We've found that while Melody's packaging is generally pretty good and the products have always made it to their initial destination without problem, the extra handling of shipping multiple times really starts to have an adverse affect on the boxes. The most severely affected products are the heaviest.......
Yep, that be the problem.
Lined corrugated paper (normal boxes) is only as good as the integrity of the core, which degrades rapidly once it is crushed or there is high humidity. If wet, "forgedaboudit". And as you stated, several uses with weight inside tears them up, even when double boxed.
While the single wall box is great for single use shipping of an item to the customer, you can get double and triple walled cardboard which have a higher integrity then the single walled boxes.
http://www.uline.com/BL_418/275-Lb-Test-Double-Wall-Boxeshttp://www.uline.com/BL_423/1100-Lb-Triple-Wall-BoxesThese prices and weights (boxes only) are not bad but get up there. And they can be acquired from sources like Staples, or local packaging companies sometimes without getting a full pack.
Here is an expensive source for fully built crates that I’ll use for weight values:
http://www.caseworkscrating.com/store.phpI build my own for a fraction of this price, but if you compare the weights to the triple walled cardboard, they are not that bad if you are thinking about protecting equipment that is going to be shipped multiple times. In the years of our operation I shipped equipment back and forth from NJ to LA, TX, MI, ATL, Baton Rouge, etc. The cost of the boxes and extra shipping cost was cheap insurance in keeping everything in working order.
For the $60k equipment I shipped in these:
http://www.casesbypelican.com/app-1660.htmTaking Hugh’s example of an 80 lb amp shipment, UPS ground costs from LA to NJ for 80lbs in a 30x30x12 box would estimate to be $89.49. Upping the weight with a theoretical 45lb wood crate to 125lbs changes it to $128.69, for a $39 increase one way. Depends on your priorities, but I prefer things intact when I get somewhere.
For the GTG at Deepak’s that could easily be offset if Hugh were to fly into Philly or Atlantic City rather then Newark and spend an extra 45 minutes in a car.