Hello!
I have a problem with our staircase; it started with the part just above the top step becoming loose and moving when you walk on it (see the first picture). I didn't think much more of it, but when I analyzed the problem a bit more, I realized that the entire staircase has "settled" by 0.5-1 cm.
It feels a bit worrying! So I tore off the Masonite under the staircase to see what might have happened. I can't find anything obvious. One strange thing is that the vangstycke running along the wall doesn't seem to be screwed into the wall. Is that normal? I assume the staircase is supported by leaning against the wall (like a ladder).
What might have happened, has the vangstycke shrunk?
EDIT: I see that the pictures are upside down...