Do I need both a shower curtain and a liner?

If your outer curtain is fabric: yes, you need a waterproof liner behind it. Fabric absorbs water and the wall will be damaged without a liner. If your outer curtain is vinyl or PEVA: the outer curtain itself is waterproof, so a liner is optional. Many users with vinyl curtains skip the liner entirely. Some add a cheap PEVA liner inside the vinyl to keep the decorative vinyl curtain dry and easier to clean.

What size shower curtain do I need for a walk-in shower?

For a walk-in shower without a tub, the curtain width depends on the shower opening width. Most walk-in shower curtains are 54-72 inches wide. For openings wider than 72 inches, use two panels or an extra-wide curtain. For walk-in showers with high ceilings: measure rod-to-floor and order accordingly — extra-long 72x96 or 72x84 curtains cover most walk-in shower heights.

How often should I replace my shower curtain liner?

Standard PEVA/vinyl liners last 3-6 months with regular cleaning before mildew becomes embedded in the material. Signs of end-of-life: mildew stains that do not wash out, persistent musty smell after cleaning, or material yellowing. Higher-quality EVA or fabric liners last 12-24 months. Machine-washable fabric liners last longest — wash monthly, replace when the waterproofing fails (when water soaks through rather than beading off).

Can I wash my shower curtain in the washing machine?

Polyester and microfiber fabric shower curtains are machine washable on cold or warm gentle cycle. Add white vinegar to the wash to address mildew. Tumble dry low or hang dry — high heat shrinks polyester. Vinyl and standard PEVA curtains can be machine washed on gentle/delicate, cold water only. Do not machine dry vinyl — the heat warps the material. Hang to dry. Cotton shower curtains shrink in hot water and high heat — always wash cold and hang dry.

How to Choose a Shower Curtain: Material, Size, and Liner Guide

Choose the right shower curtain — fabric vs vinyl, standard vs extra-long sizes, weighted hem or not, and whether you need a separate liner. Covers standard tubs, walk-in showers, and clawfoot tubs.

Step-by-Step Guide

Step 1: Measure your shower opening and rod height

Standard shower curtains are 72 inches wide by 72 inches long — correct for most standard 60-inch tub/shower combinations. The curtain should extend 12 inches wider than the opening on each side and hang 1-2 inches above the floor when the rod is at standard height. For non-standard setups: measure from the rod to the floor, subtract 1 inch, and order a curtain in that length. Extra-long curtains (72x96 or 72x84) work for rods mounted higher than standard, walk-in showers with high ceilings, and users who prefer an extended floor puddle to block drafts. Clawfoot tub curtains are 72 inches wide by 70 inches long and require a circular or oval curtain rod — the rod circumference determines the curtain panel width needed.

Step 2: Choose the material based on your bathroom use

Fabric curtains (polyester, cotton, microfiber): machine washable, available in more patterns and textures, do not stick to skin during a shower, and look more like interior decor than bathroom accessories. Fabric does not block water on its own — it requires a separate waterproof liner behind it. Vinyl or PEVA curtains: waterproof without a liner, easy to wipe clean, lower price, but stick to skin and walls during showers and smell more like plastic when new. For daily use in a high-humidity bathroom with no separate liner: vinyl or PEVA. For a bathroom where aesthetics matter and you will maintain a liner: fabric. Polyester fabric is the best compromise — it handles humidity better than cotton, washes easily, and dries faster than cotton or microfiber.

Step 3: Decide whether you need a liner

A liner is a waterproof panel that hangs inside the curtain (between the curtain and the water). Whether you need one depends on your outer curtain material. Fabric curtains require a liner — fabric absorbs water and eventually allows water to pass through, damaging walls and floors. Vinyl or PEVA curtains are self-waterproofing and do not require a separate liner, though many users add one to protect the decorative outer curtain. If using a liner: the liner hangs on the same rod as the outer curtain, inside (shower side). The liner should be at least as long as the outer curtain and the same width. Choose a liner with weighted magnets at the hem — they prevent the liner from billowing inward during a shower.

Step 4: Check the hem weight and hooks

Hem weight determines whether the curtain hangs straight or billows into the shower. Lightweight curtains without a weighted hem billow toward the bather during showering from the air pressure differential. Solutions: a weighted hem (lead or metal weights sewn into the bottom), a magnetic liner that attaches to the tub side, or suction cups clipped to the liner and tub wall. Hooks: most curtain rods use 12 hook positions for a 72-inch curtain. The 12-grommet/hole standard is universal. Curtains with buttonhole grommets (fabric loops at the top edge) work with any standard hook. Decorative hooks are purely aesthetic — the functional requirement is that the hook passes through the grommet and hangs on the rod without jamming or slipping.

The decision that determines whether your bathroom stays dry is material — specifically whether you want waterproofing built into the curtain itself (vinyl or PEVA) or a two-layer system with a fabric curtain and a separate liner. Size, color, and hook style are secondary to that one choice.

Quick decision: daily use, simplest maintenance — vinyl or PEVA, no liner needed. Best appearance with more maintenance — fabric curtain with a liner. Best long-term durability — polyester fabric curtain with a weighted PEVA liner.

Fabric vs Vinyl: What Actually Matters Day to Day

The material choice affects every shower, not just appearance.

Fabric curtains (polyester, cotton, microfiber) do not stick to skin during a shower, look like interior decor rather than bathroom equipment, and are machine washable. The tradeoff: they absorb water and allow it to pass through over time. A fabric curtain without a liner will eventually damage the wall behind it from repeated water exposure. Fabric curtains require a separate waterproof liner.

Vinyl and PEVA curtains are waterproof without a liner, wipe clean easily, and cost significantly less than quality fabric curtains. The tradeoffs: they billow into the shower during use (the air pressure differential draws them inward), they stick to skin, and cheap vinyl smells like plastic when new (PEVA, which is vinyl-free, has less off-gassing). For a no-maintenance, lowest-cost setup: PEVA is the practical choice.

Polyester fabric is the best compromise. It repels water better than cotton, dries faster than microfiber, and handles machine washing without the shrinkage risk of cotton. Polyester fabric with a PEVA liner is the most common setup in households that want both appearance and easy maintenance.

Sizing Guide: What to Measure Before You Buy

Getting size wrong means the curtain either drags on the floor (mildew risk) or leaves a gap above the tub (water on the floor).

Standard tub/shower combination (60 inches wide): a 72-inch wide by 72-inch long curtain covers the standard opening with overlap on each side. Rod-to-floor distance at standard mounting height is about 72 inches — the curtain should end 1-2 inches from the floor.

Walk-in shower with high ceiling: measure from rod mounting location to floor. If more than 72 inches: order a 72x84 or 72x96 curtain. A 72-inch curtain in an 84-inch ceiling walk-in leaves a 12-inch gap at the top, which looks odd and reduces containment.

Clawfoot tub: needs a circular curtain rod (oval or circular) and a curtain wide enough to cover the full circumference. Clawfoot curtains are typically 70 inches tall. The rod circumference determines how many curtain width inches you need — a 72-inch round requires approximately 240 inches of total curtain panel width for full coverage.

Liner Selection: Weight, Magnets, and How Long It Lasts

The liner is the functional component of a two-piece setup. The curtain decorates; the liner waterproofs.

Weighted hem magnets: a liner without hem weights or magnets billows into the shower during use. The magnets attach to the inside of the tub and keep the liner bottom pressed against the tub edge, preventing water from escaping under the liner. This is the most important practical liner feature.

PEVA vs EVA vs fabric liner: PEVA is the standard — chlorine-free, low off-gassing, $8-15. EVA is softer but similar performance. Fabric liners (polyester or microfiber with waterproof coating) are machine washable monthly and last 12-24 months versus 3-6 months for PEVA. If you will actually wash it monthly: a fabric liner pays back the cost difference.

Replacing the liner: the signal to replace a liner is mildew staining that survives washing, persistent smell after cleaning, or material yellowing. Pink mildew near the hem is the first sign of end-of-life on budget liners.

Best Shower Curtains — top fabric and vinyl picks
Best Mold-Resistant Shower Curtains — anti-mildew options
Fabric vs Vinyl Shower Curtain — full comparison
Shower Curtain Mold Fix — remove mildew and prevent it