To find the right curtain length measure from the floor to where you ll hang the rod usually 4 to 6 inches above the window frame.
How high to mount curtain rod above window.
Don t scrimp on length.
When you hang the curtain rod high it will make the window appear taller.
The higher the curtain rod the taller the window will appear so fix your curtain rod closer to the ceiling than the top of your window if you can.
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One rule of thumb is that they should sit 4 6 inches above the window frame.
Hanging curtain rods high above the window frame adds height to the wall and works best with long panels or drapes.
Curtains come in common lengths like 63 84 and 96 inches.