So i've been thinking about the size cage one could get away with for an adult corn or comparable sized snake. It is more convenient for me to have wider cages than longer cages but i need a cage that has front opening doors. My theory is that a 18x18x12 exo terra terraium would be an acceptable size for one. My reasoning is that a cage with those dimensions is about a 17 gallon (1.5' X 1.5' x 1' = 2.25 then 2.25 x 7.48= 16.83). I've read that 20 gallon cages are ideal. This seems pretty close if not a bit small but my thoughts on that is when looking at cages for large snakes they are usualy in cages that are 1/2 their body length or smaller. Compared to a 18x18 being wider and giving a bit more room than 1/2 body length going both ways. the way i see it is that a cage that size would be just fine. Any thoughts? I need someone to bounce this off of.