One of mine, when it was a puppy was always trying to run out the door any chance she got. So, until she was trained I got a piece of plexiglass cut the width of the door & about 2' high & put some brackets in the door facing that it would slide down into. The only thing is you have to step over it. I also pur a couple strips of masking tape all the way across the top so to not forget & walk into it. It worked great. |