Window Treatments and Interior DecorationAnthony Cowie
Scale is so important when designing or choosing a window dressing. A decorative window treatment involving a pelmet or valance and curtain combination can so easily be spoilt if the scale of the decorative heading is not right. The pelmet or valance can be either too heavy or too squat. Aim at about a sixth of the overall length of the curtains as a guide, with the sides being brought down a little more if desired.
If you have a room that has a number of windows all pitched at different heights, then this can be quite a challenge. To go ahead and make or buy window treatments and install them the same height above each window is usually less than ideal in terms of scale and proportion. A better plan would be to install all the tracks at the same height and have roller blinds fitted above the windows, outside the recess to hide any wall that would otherwise be visible.
TOP TIP:Getting into the habit of doing a scale drawing is always good practise, as you will be able to see immediately if the proportions are incorrect. You may well feel that your particular window will take a heavier valance or pelmet from your scale drawing.