Curtains are best hung either to the floor, to a sill or below the sill. We recommend that curtains finish either:-
A) 1cm above the floor
B) 15-20cm below the sill (or 2cm above the radiator)
C) 1cm above the sill
Always measure in at least 3 positions across the track or pole as floors and sills are rarely level. Measure from the hanging point and then consider how much of the curtain you want to extend above the hanging point. This can be altered depending on which hooking point in the tape is used. To avoid curtains dragging across the floor or sill we recommend you use the shortest of these 3 measurements.