Q. What size curtain rings should I buy?

Answer

Pick a drapery ring that has an inner diameter that is a half inch bigger than that of the diameter of the pole or rod you'll be using. To give you an example, if you have a rod with a diameter of one inch, the equivalent ring will have an interior diameter of one and a half inches. Moving the draperies down the rod will be more difficult if the ring that holds it has a smaller diameter on the inside.