Has anyone used a doggy door for goats?

[Nanno]

I think that's a great idea! It will have to be a pretty big doggy door though, especially if your goats have horns. You might have to make it yourself. The closest thing I've done is I once hung a piece of heavy duty felt-lined canvas horse blanket, doubled over, in the doorway of Cuzco's shed several years ago when he was an only goat. I did this to keep the wind and snow out of his shed in winter and it worked really well. I took it down in summer to allow more air circulation. He never had any trouble figuring out that he could still go in and out of the shed.