Stephen wrote:

Hello,

I have got a cupboard hung to the wall of my kitchen. There's a small
gap between the cupboard and the door, so whomever fitted it has
filled this gap with a small corner unit: its just a few shelves big
enough to put a few photos or ornaments on.

I would like to remove this corner unit but I don't know how. The big
cupboard has two metal "boxes" that protrude in each top corner but
other than that there are no obvious fittings. There are certainly no
fittings on the corner unit. There were three small screws attaching
the side of the cupboard to the side of the corner unit but I have
removed those and the corner unit is still firm.

I think that the corner unit is secured to the big cupboard but how?
Glue? How can I remove the corner unit?

Those corner shelf units are generally fixed by pushing a threaded bush
in from one side, then the screws go into that bush from t'other side.
If that's the case with yours, & you haven't removed the bushes, they
may be holding things together. If the screws are self-tappers, there
won't be bushes.

There may also be a fourth screw underneath the hanging mechanism (the
metal box in the top corner). There should be a couple of screws on the
end of that box - 1 adjusts the height & 1 pulls the cupboard into the
wall. Slacken the latter on both boxes & you should be able to lift the
cupboards off the wall. The box will be screwed to the side of the
cupboard. Take it off & you'll see if there's a screw underneath for
the shelf unit.

--
Preston.