Walls are not 3 inches thick!! Seems sturdy enough but the walls are 1 inch thick. The joints are about 3 inches thick but only make up about 10 of the walls. VERY MISLEADING. Im guessing it will still serve its purpose however Wall thickness - 3 in was a big selling point for me.

Pretty easy to put together except for the roof. The 4 roof panels are a pain and you need a lot of room around the perimeter to install them. I built the shed by myself in about 5 and a half hours (not including the foundation I built).