Every carpenter asks this on the shop floor, usually holding one of each. The honest answer is that the difference matters in about half of the doors in a typical flat, and paying for it on the other half is money you could have spent on better channels.
What the three types actually do
Plain concealed hinge. Opens and closes; nothing else. The door stays wherever you leave it. Cheapest by a wide margin.
Auto close. A spring inside pulls the door shut over the last 30–40mm of travel. The door won’t sit ajar. It closes with a knock — noticeable in a quiet kitchen, and hard on the carcass over years of use.
Soft close. A small oil-filled damper slows the last 40mm to a controlled stop. Silent, no rebound, and materially kinder to the cabinet. Most also auto-close, so you get both behaviours.
Where each one belongs
| Location | What to fit | Why |
|---|---|---|
| Kitchen base and wall units | Soft close | Opened many times a day, often with full hands |
| Crockery and glassware units | Soft close | The rebound on an auto-close hinge is what cracks stacked plates |
| Wardrobe shutters | Auto close | Used a few times a day; the spring is enough |
| Utility, store, loft units | Plain or auto close | Nobody is listening, and nobody is watching |
| Anything above head height | Soft close | A heavy door swinging shut at face level is worth the extra |
The crank number is not optional
Concealed hinges come in three cranks and they are not interchangeable:
- 0° (full overlay) — the shutter fully covers the side panel
- 8° (half overlay) — two shutters share one panel between them
- 16° (inset) — the shutter sits inside the carcass, flush with the frame
Order the wrong crank and the doors will not line up, whatever you do with the adjustment screws. Count the shutters against the panels before ordering, or send us a photo of the carcass and we will tell you the split.
When a retrofit damper beats new hinges
If the cabinets already have working auto-close hinges and the complaint is only the noise, do not replace them. A clip-on damper kit fits onto the existing hinge arm and converts it to soft close at a fraction of the cost of new hardware, with no drilling and no new cup holes. It is the single most useful thing in this category and most people do not know it exists.
Where new hinges genuinely are the answer: the cup holes are worn oval, the doors have dropped and will not hold adjustment, or the existing hinges are a copy brand that has begun to fail across the whole kitchen at once.
What to check before you buy
- Cup diameter — 35mm is standard. Anything else and your existing holes will not take it.
- Opening angle — 110° is normal. Fit 165° where a drawer or basket needs to clear the open shutter.
- Clip-on vs fixed arm — clip-on lets you take the shutter off for painting without unscrewing the base plate. Worth it.
- Steel gauge and finish — the cheap copies are thin and the nickel goes patchy inside two monsoons. This is where a genuine Ozone or Hettich hinge earns the difference.
Bring the old hinge to the shop, or send a photo of it lying flat with the cup visible. We will match the crank and the angle, and tell you whether a damper kit does the job for less.



