I've heard of people using these drawers for snakes.
Unlike Sterilite drawers, these are more rigid and completely enclosed. I was thinking of giving them a try...I mean...you could add levels to your "rack" as needed.
They also come in "long way".
Link
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"What is man without the beasts?
If all the beasts were gone,
men would die from great loneliness of spirit.
For what happens to the beasts,
soon happens to men.
All things are connected."
-Chief Seattle (Duwamish Tribe)



