Originally Posted by
dan_pdx
Huh, I can neither confirm nor deny the floor being level, but it's in a garage so it's over a slab. Dog shit mortising from the factory seems very plausible to me because it looks square/plumb as far as I can tell (though I haven't checked with a level). Surprised that the factory would be that far off, but maybe I'm not cynical enough.
Mainly here to bitch, I already chiseled it out and glued chopstick pieces (maybe not a pro approach, but I'm just a dentist) into the existing screw holes so I can drill new holes like 4mm away. I'll use some silly long screws when I reinstall to get down to solid wood