ok so i am going to make a rack for cb 110 (tub size: 19 7/8" X 39" X 6 1/4")rack for my 1 (future)male albino tangerine honduran milksnake, his three 100% het for albino tangerine honduran milksnakes, a pair of milk/king/corn hybrids, and a (future) pair of hypo tangerine honduran milksnakes that i will be getting on wednesday.

ok so my mom wants it fire-proof so i dont burn the house down do to the flexwatt tape so im gunna use pvc material
how does this sound:
im ordering 10 24"x48" pvc sheets that are 1/4" and im going to just put them on top of each other with the tubs inbetween, and line the sheets up perfectly then im going to take 4 8"x55" that are 3/16" thick and glue (with pvc gorrila glue) 2 on each side evenly spaced from each other and the sides then i let it dry take the tubs out and wire in the flexwatt

does that sound good? does anything sound bad? will pvc glue be strong enough? i chose it because its not flammable