You can custom order them from a custom box maker. I did this one year, there is a thread on here somewhere about my experience. I was able to order them double walled (double corrugated) in the size I wanted. I used them to ship medium nucs and did some weather tests on them. They did not stand up to rain very well, but they were cheap. (about 2 bucks each)
Mark he said $150 and only has 6 left not spoken for. I bet he makes up at least 100+ nucs. Maybe I should start selling them. He raises his own queens and I buy queens from him. They have been really good.
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