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.
How high to mount curtain rod above window.
Hanging curtain rods high above the window frame adds height to the wall and works best with long panels or drapes.
For the ideal middle ground curtains should hover just above the floor.
A rule of thumb from architectural digest is that curtains should be hung between 4 to 6 inches above the window frame so install your curtain rod accordingly.
Curtains come in common lengths like 63 84 and 96 inches.
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.
Don t scrimp on length.
Assuming you re outfitting a living room or bedroom with average ceiling height 8 feet high an interior designer s rule of thumb would be to mount the curtain rod about a half foot above.