My enclosure is huge can’t give act measurement DH built it, I do know however that the dang thing is 4 ft tall and 28 inches wide! Got an Ambanja from ChuckG (site sponsor) 1 yr old male. which was in a similar enclosure.What would be the size of that in feet? According to my breeder, they consider chameleons as adults at 13 months of age. That is maybe not how everyone catorgorizes them however. They grow up until about 18 months as I was also told.