carolina custom cages terrarium, large 36lx18dx18h; easy assembly carolina custom cages our growing family of carolina custom cages terrariums are very easy to assemble and come in 23 different models; 24lx18dx18h, 24lx18dx24h, 24lx18dx36h, 30lx12dx12h, 36lx18dx18h, 36lx18dx24h, 36lx18dx36h, 36lx24dx18h, 36lx24wx24h, 48lx18dx18h, 48lx18dx24h, 48lx18wx36h, 48lx24dx18h, 48lx24dx24h, 60lx24wx24h, 72lx24dx18h, 72lx24dx24h, 72lx24dx36h, bio deep 24lx18wx30h, bio deep 36lx18wx36h, bio deep 48lx24wx36h, bio deep hybrid 18lx18wx42h and bio deep hybrid 24lx24wx48h. the bio deep models feature a 12” deep waterproof base. the bio deep hybrid models feature 9” and 12” deep waterproof bases. all other models feature a waterproof base that is: 4” deep on the 18”h models, 6.3” deep on the 24”h models and 7.5” deep on the 36”h models. the 24”l models and the 36”l models feature hinged doors. the 48”l and 72”l models feature sliding doors. all terrariums feature key-lock security. now with tougher cardboard and extra styrofoam for our double “box-inside-a-box” packaging for even better protection against ups abuse. carolina custom cages is a division of carolina designer dragons, inc.