Gothic Tile Set - archway secret door or doorway plug

This piece fits (with about 1% room above and on the sides) into the arched doorway of most of the pieces of my gothic tile set. With it, you can either make a secret door, or just print all pieces with doorway openings, print a bunch of these wall plugs, and fill them all as desired. (E.g. print fewer pieces for the same end result - plus players won't know if any one of them is a real secret door or a wall.)