[SKB_Hamsters]

When building my DIY cage I decided upon using metal U channels to slide my acrylic sheet into. I attached the U channels to cage by drilling a couple of holes through the metal U channels (which I countersunk) and screwed them in place which then meant I could just slide the acrylic sheet in place.
For my DIY cage which is (120x60cm) I used 6mm acrylic and I would personally recommend using 6mm over 4mm acrylic as it will be slightly stronger and less flimsy.