Fitted these to an awkward solid wall in an old house. The hardware won't allow for a completely flush finish, but that was the least of my worries with the wall variations. I installed them one shelf at a time, bottom up. Removing the vertical part of shelf 2 to drop shelf 3 into place on its hardware, then refitting the vertical. It really needs 6 anchor points but only has 5. I got 3 good fixings and 2 that I have low confidence in but it's holding for now! Unless this is going direct into studs, then keep the load light. Looks great up and product arrived with no damage.