A shower curtain is one of the largest single pieces of fabric in a bathroom, which means it does far more for the room than keep water off the floor -- it sets the color, hangs as the visual backdrop, and can make a cramped bathroom feel taller or shorter depending entirely on how you choose and hang it. Most people grab whatever fits the rod and move on, then wonder why the room feels closed-in or why the liner is spotted with mildew in a month. Here is how to choose one that looks intentional and lasts.

1. Start With the Right Size

Before anything else, measure. A standard curtain is about 72 by 72 inches and suits most tubs and showers. A narrow stall shower needs a smaller width so the fabric is not bunched and dragging. The size that quietly transforms a room, though, is the extra-long curtain (84, 90, or 96 inches): it lets you mount the rod high near the ceiling and run the fabric all the way down, the single most effective move for making a small bathroom read as taller. Measure from where the rod will sit to where you want the hem to land -- a couple of inches above the tub floor for a tub, just clearing the floor for a walk-in -- and buy to that, not to whatever the shelf had.

2. Always Use a Separate Liner

The curtain and the liner are two different jobs, and the cheapest mistake is trying to make one piece do both. The liner is the waterproof inner layer that actually contains the water and takes the daily soaking; the curtain is the decorative outer layer that stays mostly dry and does the styling. Pairing a washable fabric curtain with an inexpensive, replaceable liner means the pretty layer lasts for years while you swap the liner whenever it gets cloudy. Buy the liner slightly shorter than the curtain so it tucks neatly inside the tub and out of sight, and choose one with weighted magnets or a heavier hem so it does not billow inward and cling to you mid-shower.

3. Choose the Outer Fabric

With a liner doing the waterproofing, the outer curtain can be chosen for looks and feel:

Cotton or cotton-blend: the most upscale, drapey look, and machine washable. It wrinkles and needs a good liner, but nothing else hangs as softly.
Linen and linen-look: casual, textured, and quietly elegant -- perfect for coastal, japandi, and modern-organic bathrooms. Expect relaxed wrinkles as part of the charm.
Polyester: the practical all-rounder. It resists mildew and water far better than cotton, dries fast, and comes in every color and pattern, though it can read a touch less luxurious.
Waffle and textured weaves: add quiet dimension in a neutral bathroom and pair beautifully with a tone-on-tone scheme.

Whatever the material, look for mildew resistance and machine washability -- the two features that decide whether the curtain still looks good a year in.

4. Hang It High and Wide

This is the trick that separates a styled bathroom from a builder-basic one. Mount the rod high -- a few inches below the ceiling rather than just above the tub surround -- and let an extra-long curtain fall the full distance. The unbroken vertical sweep of fabric draws the eye up and makes even a small bathroom feel dramatically taller. If you have a separate decorative curtain outside a glass door or a freestanding tub, hanging it wide of the opening, the way you would living-room curtains, makes the whole wall feel more generous. The default builder height, by contrast, chops the wall in half and shrinks the room.

5. Color and Pattern: Feature or Backdrop

Because the curtain is so large, decide deliberately whether you want it to disappear or carry the room. In a small bathroom, a curtain that matches or closely tones with the wall color keeps the space calm and visually larger -- the wall reads as continuous. When you want the curtain to be the feature, treat it like the room's one bold move: a single strong pattern or saturated color, then keep towels and accessories quiet around it. Pull a pattern's color into one or two small accents elsewhere so it looks intentional rather than random, and let the bath mat relate to -- not exactly match -- the curtain.

6. Get the Hardware Right

A flimsy rod and mismatched rings undercut a good curtain. Choose a rod rated for the span so it does not bow in the middle -- a tension rod is fine for a light liner in a tight alcove, but a mounted rod is sturdier for a heavy fabric curtain. A curved rod that bows outward over a tub adds real elbow room inside the shower and a more custom look outside it. Use enough rings or hooks (usually twelve) so the fabric gathers in even folds rather than gaping between sparse hooks, and match the metal finish to the room's other hardware -- faucet, towel bar, vanity lighting -- so it all reads as one deliberate palette.

7. Care and Common Mistakes

Keep both layers alive by pulling the curtain and liner closed across the rod after each shower so they dry flat instead of mildewing in damp folds, and toss the liner (or wash a fabric one) at the first sign of cloudiness. The mistakes to avoid: skipping the liner and ruining a fabric curtain; buying a standard length and mounting the rod low, which shrinks the room; choosing a busy pattern in a tiny bathroom that already feels cluttered; bunching too few hooks so the curtain hangs in stiff gaps; and letting a cheap plastic liner cling and discolor when a weighted, breathable one costs almost the same. Get the size, liner, and hanging height right and the curtain quietly does its biggest job: making the bathroom feel taller and more finished.

See It Against Your Real Bathroom First

A shower curtain anchors the whole color story of a bathroom, so it helps to see your options against your actual tile, vanity, and light before you commit. Upload a photo of your bathroom and preview different palettes and looks with Room Reveal. For inspiration, browse modern bathroom ideas and scandinavian bathroom ideas, and pair this with our guides to making a small bathroom feel bigger, choosing a bath mat, and styling a bathroom vanity.

How to Choose a Shower Curtain: Size, Liner, Fabric, and the Hanging Trick That Makes a Bathroom Look Bigger