Thought I'd copy and paste my post from the Caging forum over here so some of the ATB experts can comment on my comments. I've not kept an ATB in years and don't know what the specific recommendations are for their care nowadays.
Here it is:
Hi Michael,
I've built a few arboreal racks over the years but don't have any pictures, unfortunately. They were very useful when I kept tree vipers.
Building arboreal racks is pretty straightforward so I don't think you'll have any trouble with it. In many ways it's easier due to the fewer horizontal shelves per rack.
The best box I've seen for Amazons would be the Iris CB-130. Without the lid the box is about 28.5" x 20.5" x 17". You can order those from Reptiletubs.com
Another box that would be very nice is the perfectly clear Lexan box from Cambro. That one is only about 26"x18"x15".
Arboreal racks built around this box are of display quality the boxes are so clear.
Unfortunately, there is a thick rim around the top of the box and the sloping sides means the actual inside dimensions are much smaller. Perhaps a bit small for adult ATB's, I don't know. The last time I kept an ATB it was in a 2'x2'x4' cage
The Iris box also has a much smaller interior but is a big enough box that I think it would work. You could always route out the front of the box and install a peice of acrylic to achieve the display look.
Another idea is my storage tote design - I'm sure you've seen pictures of it before. You get most of the space saving economy of a lidless rack but lose the ease of cleaning. In return, however, it's easier to hook up misting systems, floor drains, etc. Nice features for arboreals.
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Current snakes:
1.1 Gonyosoma oxycephala - (Silver/Yellow)
3.4 Gonyosoma oxycephala - (Green)
2.1 Gonyosoma janseni - (Black)