Valances & Cornices Measuring Instruction

A well-measured valance or cornice gives your window treatment a clean, tailored finish. Follow these simple steps to measure the width, height, and return depth for your custom valance or cornice.

Valance or Cornice:

What’s the Difference?

Both styles are measured the same way.

Valances create a softer fabric look, while cornices offer a more structured, architectural finish.

Choose the style that best fits your space, then follow the same measuring steps below.

MEASURING PROCESS FLOWMAP

STEP 01

Measure the Width

Measure the full width of the area you want your valance or cornice to cover. This may be the window frame, drapery rod, Roman shade, blind, or another window treatment installed underneath.

  • Measure the full outside width of the window or underlying treatment.
  • Add at least 2" on each side for clearance and better coverage.
  • Add more width if needed to cover brackets, rods, or layered treatments.
  • For wider windows or a more decorative look, extra overlap can help create better scale and visual balance.

Tip: Your order width should be the total width you want the valance or cornice to cover, including any added side clearance—not just the glass area.

STEP 02

Measure the Height

The height of your valance or cornice should be based on the window size and the look you want to create.

  • Recommended height: about 1/5 to 1/3 of the window height.
  • Choose a shorter height for a clean, minimal look.
  • Choose a taller height for a more dramatic, architectural effect.
  • The installation position is typically 4"–6" above the window frame or molding.

Tip: Product height determines the proportion of the valance or cornice. Installation height determines where it sits above the window.

STEP 03

Determine the Return Size / Depth

The return, or depth, is the distance your valance or cornice extends from the wall. It should be deep enough to cover any window treatment or hardware underneath, such as blinds, Roman shades, drapery rods, or brackets.

  • Measure from the wall to the front edge of the treatment or hardware you want to cover.
  • Choose a return depth that fully clears the treatment underneath.
  • If the treatment underneath projects 4" from the wall, choose a return depth greater than 4".
  • For layered window treatments, allow extra depth for easier operation and a cleaner finish.

Tip: A proper return depth helps hide hardware, prevent crowding, and create a more polished installation.

Need Help Measuring?

Not sure which width, height, or return depth to choose? Book a Measuring Consult and our team will help you confirm the right size before ordering.

Measured and Ready to Customize?

Browse our custom valances and cornices to find the perfect finishing touch for your window. Shop the Collection