Enclosure question.

Do 24x14x36 enclosures exist? Cause i want to make sure my enclosure for when i get a crestie is big enough but the only spot i can put a enclosure a standard 18x18x36 will be too big depth wise and would have a 3 inch overhang (which i dont know if is safe, if it is please tell me, would make my life easier lol).
And so i was wondering if a 24x14x36 existed as that would fit with no overhang. Thanks in advance for any help!