What Is the Thing on Top of Curtains Called?

Walk into any beautifully designed room and you may notice an elegant fabric or structured frame adorning the top of the curtains. That decorative element is more than just an accent—it serves both aesthetic and functional purposes. But what is the thing on top of curtains called?

The answer depends on the style: it could be a valance, a swag, or a cornice. While these terms are sometimes used interchangeably, they each have distinct characteristics. In this guide, we’ll walk you through the differences so you can choose the right top treatment for your window.

1. What Is a Valance?

A valance is a short piece of fabric that hangs across the top of a window. Often paired with full-length drapes or blinds, valances serve to conceal curtain hardware and add a decorative finishing touch.

Key Features:

Made of fabric

Typically soft, gathered, pleated, or flat

Available in countless styles—from tailored box pleats to ruffled or scalloped designs

May hang alone or over full-length curtains

Valances are a popular choice in traditional, country, or romantic interiors. They're also a great way to incorporate pattern or color without overwhelming a room.

2. What Is a Swag?

A swag is a draped piece of fabric that forms graceful curves across the top of a window. Often used in formal or classic interiors, swags are more fluid and ornamental than valances.

Key Features:

Draped loosely in semi-circular folds

Often combined with jabots (tail-like vertical pieces that hang down the sides)

Adds drama and softness to a window

Best suited for formal living rooms, dining rooms, or master bedrooms

Swags are typically used to enhance tall windows or architectural features and are usually made from flowing fabrics like silk, sheer, or velvet.

3. What Is a Cornice?

A cornice is a hard window treatment, made of wood or foam board, and covered with fabric or left as-is with molding detail. Unlike valances and swags, cornices are structured and architectural in appearance.

Key Features:

Rigid frame, usually box-shaped

Often upholstered in fabric but can be painted wood

Conceals curtain hardware and creates clean lines

Ideal for modern, transitional, or tailored interiors

Cornices are perfect when you want to add dimension without the softness of fabric. They also work well in rooms with minimal window trim or contemporary décor schemes.

Which One Should You Choose?

Here’s a quick breakdown based on your style and needs:

If you’re aiming for a custom drapery look, combining a tailored valance with full-length curtains creates a rich, layered effect. If you prefer something minimal yet impactful, a cornice might be your best bet.

So, next time someone asks, “What’s the thing on top of curtains called?”—you’ll have the perfect answer.

Whether it’s the soft charm of a valance, the elegant drama of a swag, or the clean edge of a cornice, top treatments are the finishing touch that can transform ordinary window coverings into a designer statement.