I have called every "box" and "shipping supply" company in my area and I've googled extensively.
How do I find a supplier to make custom boxes?
I know for certain someone out there makes this type of box, because I had a product delivered to me in it.
Every place I've called either doesn't stock that size/type, or wants extremely high prices for the box I'd like (in the range of 10x the cost of similar boxes with much better material).
It seems like everyone I can find either has specific sizes that they sell, or they are just a white label of Uline.
Would someone mind pointing me in the right direction? Since I can't find anything remotely close, I'm assuming my approach is wrong.