the part that flips over the cab is the bed. so all the space over the bed of the truck is open. you can stand up back there. i was going to use one for my truck and build the inside stuff myself to keep the
weight low on the truck but decided to go for a eggtangle in stead. there super cool tho but at 3500 it was a bit much. wildernest made one similar that folded out the side of the bed and was more like a traditional pole tent but they are getting hard to find.