What moisture in the bathroom does to a drying rack

For years, a folding airer has stood between the bathtub and the washing machine. Small brown dots are showing at the joints, and a white towel comes off the rack with a brownish stripe. On the next laundry day, the light shirt goes over the radiator instead.

In short

A drying rack in the bathroom takes a lot of moisture, from the shower and from the wet laundry itself. Wherever the coating is damaged and bare steel shows, rust can form. Three things make the difference: a material with an intact protective layer, regular airing, and a rack that does not stay standing in the damp room once the laundry is dry.

Why it starts at the joints

Iron and plain steel rust when water and oxygen reach the metal together¹. In a bathroom, both are almost always present. The parts that move are hit first: joints, hinges and edges. Folding the rack open and shut rubs the coating away there, and the metal underneath is exposed.

Once rust has started, it stays. Its layer is porous and lets moisture through to the metal, so it offers no protection against the next spot¹. If you simply paint over a rusty patch, the rust often reappears under the paint before long. It has to be removed thoroughly first¹.

What the bathroom adds

After a shower, the air in the bathroom stays damp for a long time, and drying laundry adds even more water. The German Environment Agency advises against drying laundry indoors where possible and recommends airing more often if you do². During a shower and right after it, the window should be wide open for 5 to 10 minutes². For indoor air, a relative humidity of 40 to 60 percent is considered a good range².

The turning point: a place and a material that go together

A drying rack for the bathroom needs a material that can handle moisture, a protective layer that is not rubbed off every time it opens, and a fixed place. A wall-mounted drying rack hangs on the wall, is pulled out only for drying, and folds flat afterwards. It does not stand between the bathtub and the washing machine, where splashes and wet feet reach it.

After: the bathroom on laundry day

The laundry hangs over the bathtub, and the window is wide open. In the evening, you take down the dry towels and fold the wall drying rack away. It then sits 2.8 cm from the wall, and the towels come off without a stripe.

How to get there

Without buying anything:

• Air the room with the window wide open while you shower and for a few minutes afterwards².
• Wipe water off the walls and floor after showering².
• Let laundry dry with the door or window open, not behind a closed door.
• Check the joints of your drying rack. Remove small rust spots thoroughly before painting over them¹.

With a wall drying rack:

The wall drying rack in our shop is made of steel and aluminium with a corrosion-resistant coating. Each rod holds up to 5 kg, and folded it stands 2.8 cm from the wall. It is mounted once with a drill on a load-bearing wall. Screws and wall plugs are included. For this material too, airing and a dry wall help it.

Frequently asked questions

Why is my drying rack rusting in the bathroom?
Because water and oxygen reach the metal at damaged spots¹. This usually happens at joints and edges where the coating has worn away.

Can I just paint over the rust?
Only once the rust has been removed completely. Otherwise it keeps working under the new paint¹.

Can a drying rack hang in the bathroom?
Yes, if you air the room well. Open the window wide after showering and regularly while the laundry dries².

Will a wall drying rack rust in the bathroom?
Our wall drying rack is made of steel and aluminium with a corrosion-resistant coating. How long any material lasts also depends on the room. With regular airing and a spot that splashes do not reach, it stays good-looking for a long time.

Related

Drying laundry in a small flat: how it works during the heating season

Sources

1. Rost, Lexikon der Chemie, Spektrum Akademischer Verlag, https://www.spektrum.de/lexikon/chemie/rost/8040, accessed 2 Oct 2026
2. Wie lüfte ich richtig? Tipps und Tricks zur Schimmelvermeidung, Umweltbundesamt (German Environment Agency), https://www.umweltbundesamt.de/themen/gesundheit/umwelteinfluesse-auf-den-menschen/schimmel/wie-luefte-ich-richtig-tipps-tricks-zur, accessed 2 Oct 2026

You will find more ideas for a calm home at Homellence.