Yes. The assumption was that it was a Jenny sized cage. I can see why people thought that as it's not that obvious without the measurements or knowing what the cage actually was. As they're really not common anymore but 80cm x 50cm x 80cm cages (which is considered minimum size by most rehoming organisations for a small group) are then it's a fair assumption.
As far as the shelf comment goes then no, shelves are not needed. They encourage rats to get fat as they are a fairly easy form of enrichment and can be a contributing factor to bumblefoot as rats love to pee on them but they are difficult to keep spotless particularly wooden shelves. Other enrichment which keep the rats active and don't allow urine to pool is a much better idea - see my pic below. It is 2 Savic Royal Suite's joined. I have 2 shelves in the whole thing but these shelves are being used as litter trays as they can be filled with litter as they are concave thus solving the problem of pee being where it shouldn't.
Neither Amy104 or Redfraggle were justifying the use of small cages in this thread as both of them keep their rats in large cages. They were purely mistaken (easily done when there's no measurements or anything around for size comparison) about what the cage actually is. I think we're all now in agreement that it's far too small
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