I need to replace an old wooden door that goes into my unfinished basement. I want to replace with something sturdy that will be weather resistant. I'm thinking that a steel door would probably do the trick. This needs to be a plain, sturdy door, nothing fancy, because it's in the back of the house and will not be seen. I'm having trouble finding a source for a plain exterior door like this. Does anybody have suggestions where to look? I live in the Atlanta area.