About eight years ago I built this for our daughter. She liked the idea of being in the air like a forest ranger.
To keep little kids out and make it easier to mow I hung a floating stair case. It use to be five feet off the ground , but over the years the load has sink it a bout a foot.
To keep my wife happy and the kids safe i tied the roof system in with hurricane hangers so it would be sturdy in a wind.