Its one of those metal gazebos. I took the canvas roof and dyed it dark grey, then a friend of mine air-brushed the tiles on it. For the sides, I used a heavy-duty black tarp, cut it to size, then glued scene-setters to it to make the walls. I cut in doors (just cut strips out of the tarp and left them dangling). I put grommets all around the edges of the tarp and zip-tied it to the gazebo. On the inside, there's a partition that runs from front to back (from this perspective) and has an opening at the back to get to the other half ) Hope that makes sense?