How To Measure Curtains

My track looks like this Suitable for Pinch & Pencil Pleat curtains [ ] wide x [ ] drop [ ] wide x [ ] drop [ ] wide x [ ] drop		Width Measure width from one end of track to the opposite end. Drop Measure from the top of the track to the desired finished length just of the floor.
My track looks like this Suitable for Pinch & Pencil Pleat curtains [ ] wide x [ ] drop [ ] wide x [ ] drop [ ] wide x [ ] drop		Width Measure width from one end of track to the opposite end.Add for returns and centre overlap. Drop Measure from the top of the track to the desired finished length just of the floor.
My track looks like this Suitable for Pinch, Pencil & Inverted Pleat curtains [ ] wide x [ ] drop [ ] wide x [ ] drop [ ] wide x [ ] drop		Width Measure width from one end of rod to the opposite end, not including finials. Drop Measure from just under the rod to the desired finished length just of the floor.
My track looks like this Suitable for Tabs & Concealed Tabs curtains [ ] wide x [ ] drop [ ] wide x [ ] drop [ ] wide x [ ] drop		Width Measure width from one end of rod to the opposite end, not including finials. Drop Measure from the top of the rod to the desired finished length just of the floor.
My track looks like this Suitable for Pinch, Pencil & Inverted Pleat curtains [ ] wide x [ ] drop [ ] wide x [ ] drop [ ] wide x [ ] drop		Width Measure width from one end of rod to the opposite end, not including finials. Drop Measure from under the large ring to the desired finished length just of the floor.