You're using the wrong decoration for over the top (it should be the one where the bottom section has no edges) and the doorframe needs to be offset by 16 pixels to map correctly with that door.  At one point all the doors and windows and such were set up for multiple alignments but it got a little rediculous and it was decided to skip it and let the users align them how they wanted.  That's why some of the items are in multiple places with the only difference being placement on the grid and others don't.