I just built two arboreal type racks (3 tubs high) and used the hollow core wood doors. They worked great. Each shelf is 36" deep and 20" wide...and so far no sagging at all. And they are extremely light weight compared to my melamine racks I built. If you end up cutting any part of the door, be sure to take some 1x2s and cut them to size to fit in the gaps on the end where the cut was made. This way it gives it more stability. Yo want to have solid wood all around the frame. But if you don't have to cut the door then no need to worry about that. You shouldn't have a problem with sagging.

I will try to post pictures of the racks later.

Hope that helps and good luck. Be sure to post pics of the rack when you are through.

Thanks,
-----
Michael Rehker

The Snake Breeder

"Which of us has not been stunned by the beauty of an animal's skin or its flexibility in motion?"
--Marianne Moore

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