I just ordered a box online for a painting that I need to ship to Canada. It's an odd size and so I found this box for shipping or moving a crib mattress. I've never had to order a specific box, it always seems that I can usually just find one the size I need. I made myself giggle when the thought went through my mind........Does a shipped box come in a box? And is it folded down to fit in the same box that is being shipped?