I really like this idea for a kids room. Ive always loved the idea of loft beds, but putting a curtain to cover and it becomes a special alone space. I did this but with a normal bed. I laid underneath but with less room than this.
This two story fort playhouse will be loved by young and old. It also offers flexibility. You can close in the bottom and add doors for a storage shed while the kids have the top as a playhouse. (which is where they want to be anyway!)
I saw this on the Disaster preparedness board but saw it as a cute kids fort/playhouse......just a thought....or you could go with their idea: Pallet house for disaster preparedness could double as a green house.