The structure could actually fairly simple design if the instructions had not an error which was corrected wrong. The distance between the upper and lower angle sheet has been corrected from 61,5cm to 60,5cm by hand, but must 62,5cm or 62,7cm be better, so that the good piece fits. Here is also another point to which to watch out for, who does not find enough mention in the manual: Both the upper hinge and the lower feature a locking tab and both must be fitted into the recess of the gussets as the door with only one holding nose has too much play. Are these cliffs firstonce overcome the grid is just recommended. My suggestion would be accompanied by a template out of cardboard for the holes, then you might also cause problems any more errors in the dimensioning and I would give the grid five instead of four stars.