Today I have finished all but one of the windows. All the window openings were about 1/4" too big! I had to shim each window! Fortunately, I had some scrap wood that was just the right size. I have never run into that problem before. I glued five of the walls in place. When I started to add the next wall, the others started coming undone so I stopped and clamped things together until tommorrow when the glue will be dry.