Oh I never thought of it that way! I guess it's the most squished in part of the cage if you look at it. There's definitely enough height that he can have a shelf and I have a couple of spare bridges that neither ham has used yet. I'm heading off later to an area near IKEA and I heard you can use knuff organisers as a shelving option?
https://www.ikea.com/gb/en/products/...-art-50187340/
I guess the other option is to hunt down a crap tonne of lollipop sticks as I got non-toxic hot glue and have a small DIY after my work day.