Hi you can check out my recent build...I used Maple instead of melamine and stained it with water-based verathane. In total including heat tape, t-stat (stc-1000), wood, sealant, edging, extension cord, tape, and misc it was under $300. (minus labor of course which was my own along with my fathers)
It will hold 21 15qt tubs or 7 32qt tubs. Let me know if your interested and i can give more info if it is not in my thread.
http://ball-pythons.net/forums/showt...ure-Grade-Rack
It holds heat well I would just give it some time to throughly heat the enclosure. I also keep all of the levels filled with tubs basically giving more thermal mass the the rack.
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