I wasn't going to post step by step photos of this structure as Mikey and I had done so previously, but I am using wood for this building and am building it like a model airplane that I built dozens of when I was into flying them. The procedure is similar in that I drew a wall plan on paper, covered it with waxed paper the fastened the beams to the wax paper with strips of scotch tape. The other cross pieces are glued in place so it looks like this. It is easy to make multiple copies of a stucture this way. Hope this isn't too repetitious