Built a bookshelf that ended up 4 inches too tall for the alcove after I already stained it
Measured three times, cut once, right? Nope. I measured the alcove height but forgot to account for the baseboards being deeper than I thought. So the shelf unit sits on the floor but the top sticks out past the top trim. I had to take the whole thing apart, cut 4 inches off each vertical piece, re-stain the cut ends, and reassemble. Took me an extra 6 hours on a Saturday. Anyone else ever mis-measure something and have to basically rebuild it?