Doors for Bathrooms and Humid Rooms: What to Know Before Buying
Doors for a bathroom are often picked "like all the others" in the apartment — then a year or two later the bottom edge starts swelling or warping. The reason is simple: humidity in a bathroom or laundry room is consistently higher than in living spaces, and the door material needs to be chosen for that from the start, not hoped to just cope.
Why a regular door isn't always the right fit
A classic wooden door panel is a living material that reacts to humidity: it expands, absorbs moisture, and over time can warp along the bottom edge, where moisture lingers longest after a shower or a laundry cycle. In poorly ventilated rooms this effect is stronger.
PVC film vs. painted finish for humid rooms
PVC film creates an extra barrier on the door surface and holds up better against regular humidity and wiping down than a painted finish — especially where the door gets wiped clean of splashes or condensation often. Painted doors can go in a bathroom too, but it's worth choosing a model with a quality, even coating and avoiding excessive direct contact with water.
Aluminium edging — the main protection at the bottom
The most vulnerable spot on any door in a humid room is the bottom edge of the panel, which is in contact with a damp floor most often. Aluminium edging around the perimeter protects the panel from swelling and chipping right there — that's what to check in a model's specs first, not just the colour or texture.
Threshold and floor gap
In humid rooms, the gap between the door and the floor matters even more — it provides ventilation and keeps moisture from building up right against the wood. That's an installation question as much as a door one, worth discussing with the installer ahead of time.
In summary
For a bathroom, utility room or laundry, the safest choice is a door with PVC film and aluminium edging around the panel. It doesn't change the look or price dramatically, but it adds years of service exactly where a regular door wears out fastest.