C.F.
I bought a big play yard circle with toddler activities and put it around the hearth. I don't remember what it was called (12 years ago), but each section came apart and you could make it in a circle or straight. I used it as a circle inside and outside - it was a really big playpen without a bottom. And I also went end to end around the fireplace and it kept my son out of the hearth and fireplace. Each section was like a fence with activities.