I've never had any kings but I believe a California King would have close to the same caging requirements as a corn snake. I've had many a corn snake.
Someone please correct me if I'm wrong on this.
Ideally, I believe something within 36" - 48" (L) x 18" - 24" (W) x 12" - 18" (H). I'd say an acceptable size for an adult would be 30" x 12" x 12".
Have you read through the kingsnake forum? Maybe even post this question there for more specific input.
Take care!
Mike
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