There can be a large number of arched window treatment ideas, that can enhance the beauty of the window. There are different ideas can be implemented onto the window. It depends upon the way you like your window to be presented. The arch window has a large potential in terms of the ideas that can be applied to it. There is a drapery rod that is used in most of the windows, you can use the straight rod or you can also use the rod to follow the curves of the windows. These are the most commonly used arched window treatment ideas applied domestically in the interiors.