Was going to try a pullet shut door on one of our coops, as it was the first one we built when we had NO clue what we were doing. Was built out of an old kids playhouse, and it had nowhere near enough room to do a guillotine style door, which is what the add-a-motor would require to put in an auto door. DH said, 'Nah, I can make it work' - and he did! Check it out - the timer is under an eave (not seen) and I am going to place another strip of wood on the left side to prevent a reach-in. Keep in mind the run is pretty darn secure (hardware cloth covered on all sides including the top), but I've been having to free range them lately due to the heat. So I wanted to have a way to secure them when I am not able to close the run door (which I will be doing 99.% of the time). Suggestions much appreciated! We will probably have to replace the osb door if it swells, but it's what we had on hand at the time - and it is also under an eave. It's not pretty, but it works! The door swings around the eyebolt in the upper left. The string from the add-a-motor is on the right. I didn't think it would work, I admit it.