Recessed Windows
When draperies are hung flush with the wall, measurements are taken inside the recess. A spring socket type of fixture is available for this type of window. Always measure from the top of the rod, except for Cafe curtains. Usually a ring, “sew-on” or “clip-on” type is used. In this case, measure from lower part of circle to lower part of next section, or to the sill. Add depth of top finish plus hem to this measurement.
Oval spring socket. Round spring socket.