I don't see any box designing thread here.So picrel is what I think the well protected design to safely deliver fragile items, but this design is only good for small bottles but not for big items, such as for an item that's 2/3 size of a coffee table. I tried using the same material (cardbox) but the strength of the box couldn't support it. How would you improve this design so that I could still use the cheap card board stocks while at the same time it's able to retain shocks from being tossed around?