Loft keeps falling down

[Hungrypiggies]

Hi everyone, I was just wondering if anyone has any suggestions for how to secure my Guinea pig cage.
My guinea pigs are in a 2x4 cage with another level of 2x1 (the loft). There is not to much weight on the
upper level but the grids still fall down. It’s annoying to keep having to fix it every time it falls down.

Thank you for any advice,

 

[Piggies&buns]

I would secure everything with cable ties

 

[Hungrypiggies]

Ok thank you

 

[Roselina]

I’ve cable tied every grid for my c&c and it’s very easy to do but does give you the security !
I’m not too impressed with attachments