Hi, I had my dwarf hamster on a Ferplast Hamsterville Hamster Wooden Cage, 60 x 34 x 49 cm.
So I made this cage for him, each square measures 30x30cm of floor.
Is this amount of floorspace appropriate? I often free him in the floor of my room for about one hour.
I own another dwarf that is on a Large Living World Green Eco Habitat.
Hamster cage - Album on Imgur