This is Tori's cage. I had initially bought her a 24" x 36" cage -- which was not deep enough. If I had sized it 30 x 36" I would be able to comfortably put two perches in at the given height, so I went overboard for a 48 x 48" cage. It' huge and oh, so fun to clean. BTW, she has the most expensive piece of furniture (the rest of us have Ikea). If I could do it again, maybe a 36 x 48 would have been easier to manage, but Tori needs to be more active, so I try to space things out and make her walk and climb. I've always wanted a stainless steel cage because I had to clean her old $90 cage for 20 years.
Here is her sleep cage: