Sliding door with soundproofing: What options/providers are available?

Ask a carpenter for a solution made of wood. It won't be hermetically sealed, of course, but it will work well. You can forget about glass.

We have two glass sliding doors that do keep sound out somewhat, but they are not as airtight as a normal door against sound or cooking odors. There is a system from the company Griffwerk called Planeo Air Silent. It is somewhat tighter due to built-in rubber lips, but in my opinion, it doesn’t compare to normal doors. Besides, it is incredibly expensive and according to our glazier, the materials do not match, for example, those from Dorma in quality. Advantages of glass sliding doors, which is why we installed them, are space savings and brightness. Also, it looks cool :cool:

I don't understand why a revolving door (in the open position) is more in the way than a sliding door running in front of the wall? You have to keep the space by the wall free for both. So if no piece of furniture is supposed to stand within the swing radius of the revolving door, the sliding door doesn't offer any advantage there. For that, it would already have to run into the wall. Such a thing doesn't really become soundproof. Maybe if you install a kind of window sliding door.

Well, the doors opened into the rooms. For space reasons, we couldn’t change that either. Of course, a sliding door running along the wall was much more space-saving.

So if no piece of furniture is supposed to stand within the swing radius of the revolving door, the sliding door offers no advantage there.

Bingo! Behind the door along the wall there is supposed to be a long wardrobe :-)

Reason: The door is always open anyway (the passage is used very often) and the door would just be in the way.

Actually, the option "remove the door" would occur to me. Very simple.

For me personally, soundproofing is quite important when needed.

Weigh whether the need is actually there or whether it is worth that much to you under these circumstances. You should consider that it then has to be executed quite bulky on the wall. Since we don't know where the entrance is or where the hallway at the bottom of the plan leads (I would already plan about 15-20 cm in thickness there), you really can't advise anything anymore now. Basically, it is almost ideal and unobtrusive if a door "slims down" in front of a cupboard. You could store things in the wardrobe in that area that you don't always need, e.g. the sports bags.