A valance is a short piece of fabric that runs across the top of a window, covering the curtain rod or hardware while adding a decorative layer. Custom valances — made to your exact window width and in a fabric you choose — give you a finished look that ready-made options rarely achieve. Whether you're adding a valance to dress up existing curtains or using one on its own for a light, structured treatment, this guide covers styles, sizing, and fabric pairing.
What is a valance and when do you need one?
A valance is not a full curtain. It typically covers just the top six to eighteen inches of the window — enough to hide the rod, brackets, and the heading of your curtains. Think of it as the finishing detail that makes a window treatment look intentional rather than bare at the top.
You might want a valance if:
- Your curtain rod or track hardware is visible and you want to conceal it
- You want a layered look — valance on top, curtains or shades beneath
- A full-length curtain feels like too much for the room, but a bare window feels too little (common in kitchens, bathrooms, and breakfast nooks)
- You're pairing curtains with blinds or shades and want a fabric element at the top to soften the overall look
The most popular custom valance styles
Valances come in more shapes than most people realize. The style you choose affects how formal or casual the window reads.
Straight valance (tailored)
A flat panel with a clean bottom edge — sometimes with a slight contrast trim or banding. This is the most versatile style and works in modern, transitional, and traditional rooms. It's also the easiest to size and install.
Scalloped valance
The bottom edge curves into gentle arcs (scallops) between each hanging point. Slightly more decorative than a straight valance, and popular for kitchens, dining rooms, and cottagecore aesthetics.
Box pleat valance
Structured pleats are folded and pressed into the fabric at regular intervals. The result is a crisp, architectural look with real depth. Box pleats work best in heavier fabrics that hold the fold — linen blends, cotton twill, or velvet.
Rod pocket valance
The simplest construction: a fabric sleeve that slides directly onto the curtain rod. It gathers naturally along the rod, creating a soft, ruffled look. Casual and affordable — popular for bedrooms and informal living spaces.
Balloon valance
Fabric is gathered at the bottom into soft, rounded poofs (think of an inverted parachute). This is the most decorative and traditional style — best in lighter fabrics that drape softly, and suited to formal dining rooms or master bedrooms.
Cornice vs. valance
A cornice is a rigid, padded or upholstered board mounted above the window. A valance is soft fabric. They serve the same purpose (concealing hardware, adding a decorative top layer), but the look and installation are different. We cover the full comparison in our post on the difference between a cornice, valance, and swag.
How to size a custom valance
Getting the proportions right is what separates a valance that looks intentional from one that looks like an afterthought.
Width
The valance should be at least as wide as your curtain rod — ideally extending one to two inches past the rod on each side so no hardware is visible from straight on. If you're using the valance over blinds or shades without side curtains, match the width of the window frame plus four to six inches total.
Drop (length)
Standard valance drop is 15 to 36 inches. The right length depends on your window height:
- Short windows (under 48 inches): keep the valance to 10–12 inches so it doesn't eat too much of the glass
- Standard windows (48–72 inches): 14–16 inches is the sweet spot
- Tall windows (over 72 inches): 16–18 inches maintains proportion
A common rule of thumb: the valance should cover roughly one-fifth to one-quarter of the total window height, including the frame.
Fullness
For gathered styles (rod pocket, balloon), the fabric width should be 1.5× to 2.5× the rod width to create enough fullness. A straight or box-pleat valance is closer to 1:1 since the fabric hangs flat or in controlled pleats.
Best fabrics for custom valances
The fabric choice depends on whether the valance is decorative (adding pattern or color) or functional (hiding hardware while blending in).
Linen and linen blends — relaxed, natural texture. Works beautifully for straight and rod-pocket styles in casual or Scandinavian spaces. A mid-weight linen blend (300–400 GSM) holds shape for pleated styles without being stiff.
Lesley Linen Blend (339 GSM) and Sabrina Heavyweight Linen (385 GSM) — both available in custom widths and lengths that work for valance sizing. The same fabric as your curtain panels creates a seamless layered look. Shop Lesley → · Shop Sabrina →
Velvet — rich, substantial, and excellent for box-pleat valances where you want visible depth. Velvet valances add formality and pair well with velvet or linen curtains beneath.
Cotton and cotton blends — crisp, clean, and easy to sew into structured styles. Good for kitchens and bathrooms where the look should be simple and washable.
Sheer — a sheer valance on its own is unusual, but a sheer balloon valance over sheer panels creates a layered, ethereal look for bedrooms and formal living rooms.
How to pair a valance with curtains
The best valance-and-curtain pairings follow a few simple principles:
Match the fabric for a seamless look. Ordering the valance in the same fabric as your curtain panels creates a cohesive, designed appearance. This is where custom sizing matters most — the colors, textures, and weights match perfectly because they're cut from the same material.
Contrast for a layered effect. A patterned valance over solid curtains (or vice versa) adds visual interest without overwhelming the window. Keep one element neutral and the other more expressive.
Coordinate with the heading style. If your curtains have a pinch pleat heading, a box-pleat valance echoes the structure. If your curtains are a relaxed rod-pocket, a gathered rod-pocket valance continues the casual tone.
Use a valance to tie curtains to shades. When you have roller or cellular shades for function and curtains for style, a valance across the top visually connects the two different treatments into one layered composition.
Frequently asked questions
How long should a valance be for a standard window?
For a standard window (48–72 inches tall), a valance drop of 14 to 16 inches works well. The general rule is one-fifth to one-quarter of the total window height. Go shorter on small windows, longer on tall ones, to keep the proportions balanced.
Can you use a valance without curtains?
Yes. A valance on its own works well in kitchens, bathrooms, and breakfast nooks where full-length curtains aren't practical. It adds a fabric element and color without covering the window. You can also pair a standalone valance with blinds or shades below for function.
What's the difference between a valance and a pelmet?
A valance is soft fabric — it drapes, gathers, or pleats. A pelmet (also called a cornice in the US) is a rigid board, often padded or upholstered, mounted above the window. Both hide hardware, but the look and installation method are different.
Should a valance match the curtains exactly?
It doesn't have to, but matching fabric creates the most polished look. If you want contrast, keep it intentional — for example, a patterned valance over solid curtains, or a deeper color valance over lighter panels. Avoid mismatched fabric weights or textures that look accidental.
How wide should a valance be compared to the window?
The valance should be at least as wide as the curtain rod, extending one to two inches past the rod on each side. For valances used alone (without side curtains), match the window frame width plus four to six inches total to fully cover the opening.
The easiest way to get a valance that matches your curtains perfectly is to order both in the same fabric. Curtarra curtains are available in custom widths and drops, so you can specify valance-length sizing on the same material as your panels.
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