is door in which you can open and close it by pulling it in or out. however, you might feel different and unique with patio sliding glass door. it is inspired by sliding door in japan in which the glass part is actually only a paper there. however, when it is changed with glass, it looks more like large window rather than a door.
then, if you ask which door curtains you can pick for such door, actually you can just choose anything. the curtain is not placed outside anyway, so you can do the same thing like what you do with your window. however, the writer would like to recommend 