Cage size for adult carpet?

[CloudtheBoa]

I'd advise a 4'x2'x2' or taller tbh, carpets are semi-arboreal and seem to appreciate a nice arboreal cage, but they should still have adequate floor space.

The rule I use for my snakes is Length+Width is greater than or equal to the snake's length, and I provide no less than 18" for terrestrial and semi-arboreal snakes, and prefer 2' of height. This is a very good, universal rule to use for most species, with only slight changes depending on species. Such as active diurnal snakes getting cage lengths equal to or longer than their length, rather than Length+Width, and arboreal snakes getting 2'-3' of height, etc.

(Edit to add these are all minimums for me.)