#playpen

I have four rats, and I know that it's good for them to have at least an hour of time out of their cage every day. In the past, I would simply let them run around my room. However this proved to be problematic, as they would chew through my bedding, curtains, and the clothes and bags in my...

Okay, so at first I was going to make a playpen out of cardboard...but my dad suggested that we go to the hardware store and make a playpen out of wood with hinges because he didn't want the cardboard to be too flimsy. Will my rats be able to climb a wooden playpen? And how tall should the...