How to Measure your window
Width
To measure the width of your window for your net curtains, measure the inside of the window recess from wall to wall. The next step is to decide how much gather you would like. The standard fullness is 2 x your width measurements, for additional privacy you can fo for 2.5 or even 3 times.
Drop
To measure the drop of your window, measure from the top of the window recess to the window sill or ledge. The next step is to work out which standard drop best suits your measurements. If your window is between the standard net curtain sizes, you or a seamstress can shorten the curtain by turning the top hem