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 the top.
Height to put curtain rod.
Go high 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.
For cathedral ceilings leave approximately four to six inches above the window trim as a guideline.
Don t scrimp on length.
For standard drapes that hang on either side of a window the typical height is halfway between the top of the window.
When you hang the curtain rod high it will make the window appear taller.
For grommet curtains you will need to take into account the placement of the grommet.
Hanging curtain rods high above the window frame adds height to the wall and works best with long panels or drapes.