Depth is the specification people regret, and it is free to test before ordering. Hold a book of the cabinet’s stated depth against the wall above your basin and lean in as if washing your face.
Why it matters more here than anywhere
A mirror cabinet hangs at head height, directly above the place you lean forward. Every centimetre of depth is a centimetre closer to your forehead. Wardrobe depth is invisible; bathroom cabinet depth is not.
The practical range
12 to 15 cm holds bottles standing up and stays out of the way. 17 to 20 cm holds more and starts to intrude. Above that, in a small bathroom, it becomes something people duck around.
The other decision: doors
A single door needs its whole width of clear wall to open. Two or three doors need a fraction of that, which is why they dominate the family. Sliding doors need none, and exist for narrow rooms — at the cost of never having the whole mirror open at once.
And the one after that
Whether it is lit, and how the light is supplied. That turns a piece of furniture into an electrical fitting, with everything that follows from it.
Questions people actually ask
Do the shelves inside matter?
More than the depth suggests. Fixed shelves at fixed spacing waste half the volume of a shallow cabinet; adjustable ones let a tall bottle stand where it otherwise would not.
Are cabinets with a socket inside useful?
They are, for a toothbrush or a shaver, and they are also an electrical fitting in a damp room. Which zone permits one is a question for your national wiring rules, not for a product page.
Last reviewed 5 September 2026