Pretty much when we all order glass for bottling it comes in boxes otherwise we fire the glass supplier. Thus wineries don’t order boxes. If it’s shipping boxes you’re after that’s another question, but as Jorge says, I’d have to go check on the details of who we order from and where they come from.
Hold on, need a little clarification here. You are NOT looking for styro shippers, correct? You’re looking for cardboard boxes that you can use sort of like bins for long term storage? Are you putting these sideways or standing them up?
I want a box like this (see below) that can fit obnoxiously sized California wines. I will also accept boxes where the bottles can lay flat (think of Burgundy boxes 2*6 - lay flat)
Wines would be stored neck down and access would not be necessary as they would be in off site locations.