So most of the room will be full height but one section of the cabinet has to conceal an obstruction? Easy for any custom shop. Doable for a qualified installer with stock cabinets. More tricky diy

There is nothing wrong with a hidden hinge system on a swinging door, if that's what you want. But it requires a special jamb, special hinges and someone who will take the time to do a good install. This installation probably has RocYork or Soss hinges. The two companies that I am aware of that make these systems for the US are EZYJamb and FryReglet. It's expensive compared to regular door systems in cost and labor. I don't want to make any assumptions about your budget, but the system shown in the picture below is an expensive option. The closet where I uses the Euro hinges like on a kitchen cabinet was a shallow reach-in utility closet that was not opened and closed on a daily basis, and it was in an awkward location so I wanted to minimize it. That is the only time I would use a cabinet hinge for something like this. *However a number of kitchen cabinet companies are now including "hidden pantry" type things where it looks like a cabinet but you walk through into a pantry or rear kitchen. Maybe whatever sorts of hinges they use for them would work. I personally would want something other than a cabinet hinge if I were going in and out all the time. The above requires this sort of hinge mortised into the door. These hinges should also probablly last forever under normal use. But they are expensive, this particular size of this hinge is probably $120-150. A very high quality butt hinge might be $25-35. Here is a walk-in pantry. This is all the further these hinges open, so I would consider these doors "in the way". Actually in my upcoming kitchen I am using old school exposed hinges on my kitchen cabinets because I don't care much for Euro style cabinet hinges. They need to be adjusted in use, and in one of my workplace settings they have continual problems with the hinges going out of adjustment or breaking because of the weight of the doors.

I did this, The contractor had to make a box that fit into the framing. sat flush with the drywall and was able to be mudded into the drywall to sit completely flush with the wall. The door is hinged with concealed hinges, like you would used on a kitchen cabinet. My door has a small knob instead of an edge pull, but an edge pull would have been fine. It is covered with wallpaper to match the wall. I do not like push to open mechanisms because they often get out of whack and don't sit flush with the wall and doors with that type of mechanism do get wear marks or burnish marks from touching them all the time and you don't really want this. Comparing to hanging a recessed medicine cabinet that is prefab (hours) this was a detail that took days to execute spread throughout a week or more because of finishing, spackling, sanding and so forth.

Hi, Maybe an irrigation box. That is a box with no bottom. Don"t buy it yet just measure it out. This fix would involve digging a hole, cutting the pipe , gluing an adapter with a threaded cap that will end up a couple of inches below the surface. When done surface will be level and you can run a lawnmower over it. Just a thought. Good Luck Woodbutcher