The walls in my room are not at an angle to each other (angle slightly greater than 90 °) zuert I dache "shit, because I have to return again my shelves". But when I have looked at the suspension of shelves, I noticed that the shelves or the suspension of shelves may compensate for this angle error.
Fortunately!
Hanging Now my 4 shelves 40x40 beech beautiful in my corner, can be loaded (fixed with 4 dowels in the wall) and look good.
Buy recommendation! (: