How to Hang Bathroom Curtains? | No Leaks, No Sag

To hang bathroom curtains and keep water off the floor, install a tension or wall-mounted rod at 75–77 inches high, then attach the curtain with the waterproof liner facing the tub interior.

A shower curtain that sags, leaks, or pulls off the wall is usually the result of one wrong measurement or a skipped step. Getting it right takes about twenty minutes and a tape measure — no plumber required. The five-foot bathroom has flooded its floor because the liner faced outward. The fix is simple: face the plastic side toward the spray, and get the rod height and tension right so the curtain stays put.

Choosing Between a Tension Rod and a Wall-Mounted Rod

The rod type determines whether you need tools and how permanent the installation will be. A tension rod twists into place between two walls with zero drilling, while a wall-mounted rod screws into brackets for a fixed hold.

Tension Rod — No Tools, Removable

A tension rod works best for renters or anyone who wants to swap rods without patching holes. The standard trick is to measure the width between the two walls, then extend the rod roughly one inch longer than that measurement before twisting it tight. A shorter, simpler method: make the rod two to four inches longer than the space and compress it into place. Either way, the spring pressure holds it — no screws, no anchors, no drill.

Most tension rods cost under $20–$30 and support standard-weight vinyl or fabric curtains. Heavier fabric curtains may cause a tension rod to slip over time, so check the rod’s weight rating before hanging thick panels.

Wall-Mounted Rod — Permanent and Sturdy

Wall-mounted rods require drilling pilot holes, inserting plastic anchors (if you’re not hitting a stud), and screwing brackets into the wall. The rod then sits in the brackets and a set screw locks it in place. This is the more secure option for heavy curtains or families who bump into the rod daily. Expect to pay $25–$50 for a basic model, plus a drill and bits.

What Height Should a Shower Curtain Be?

The top of the rod should sit 75 to 77 inches above the bathroom floor. That height works with a standard 72-inch curtain, leaving a couple of inches of clearance so the fabric doesn’t drag in standing water. Measure from the finished floor — not the tub rim — for consistent results. If you use an extra-long curtain (84 or 90 inches), install the rod two to three inches below the ceiling, or just beneath crown molding if your bathroom has it.

Step-by-Step: How to Install a Tension Rod

1. Measure the tub width. Run a tape measure across the opening between the two walls where the rod will sit. Write down that number.
2. Mark the height. Measure 75–77 inches up from the floor on both walls and make a light pencil mark or stick a piece of painter’s tape there.
3. Extend the rod. Pull the rod apart until it is about one inch longer than the measured width. Twist the locking mechanism to hold that length.
4. Set the rod in place. Angle one end against the wall, push the other end into position, then twist to tighten the spring tension. The rod should feel solid — no wobble.
5. Check for level. Place a level on top of the rod. If the bubble is off-center, loosen, adjust one end, and retighten.

Step-by-Step: How to Install a Wall-Mounted Rod

1. Mark bracket locations. Hold one bracket against the wall at your chosen height. Use a pencil to trace the screw holes. Repeat on the opposite wall, using a level to make sure both marks are aligned.
2. Drill pilot holes. If the wall is tile, use a carbide drill bit and press a strip of painter’s tape over the mark to stop the bit from sliding. Drill slowly.
3. Insert anchors. Push plastic anchors into the holes and tap them flush with a hammer. Skip this step only if you hit a stud.
4. Screw in the brackets. Drive the screws through the bracket and into the anchors using a screwdriver or drill with a screw bit.
5. Place the rod and tighten set screws. Slide the rod into the brackets, center it, then tighten the small set screws on top of each bracket with a hex key or screwdriver.

Attaching the Curtain and Liner (The Right Way)

The most common mistake is hanging the liner outside the tub. The waterproof side must face inward — toward the shower spray — so water runs down the liner and into the tub, not onto the bathroom floor. The decorative curtain faces outward.

Slide the curtain onto the rod using one of three methods:

• Rod pocket: Slide the rod through the sewn channel at the top of the curtain. This creates a ruffled header and requires no hooks.
• Hook-through rings: Insert metal hooks into the eyelets or back of the pleats, then clip the hooks onto the rings that ride on the rod.
• Clip rings: Open the clip, pinch it onto the top edge of the curtain fabric, and let the ring slide on the rod. Space the clips evenly — twelve rings is a standard count for a 60-inch curtain.

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After the curtain is up, slide it closed and run your hand along the bottom edge. It should rest about half an inch above the tub floor — close enough to contain splashes but high enough to avoid moldy fabric sitting in water.

Shower Rod and Curtain Types at a Glance

Common Mistakes and How to Avoid Them

Hanging the Curtain: Final Checks

Go through this short list to confirm everything is right before you step into the shower:

• The rod sits level and does not shift when you tug it.
• The liner hangs inside the tub rim, not outside.
• The curtain bottom clears the tub floor by about half an inch.
• All hooks or rings move freely along the rod without sticking.
• If using a wall-mount rod, the set screws are tight.

Run the shower for a few seconds with the curtain closed. Watch for water escaping at the ends or seeping under the bottom. If the fabric billows inward, add a magnetic strip or tension bar to weigh down the bottom hem.