When we moved into this place back in February, we noticed that the left side of the kitchen cabinets were sagging about an inch. Writing it off to normal settling, I didn't think much about it. However, last week, Alexandria noticed that the thing seemd to be sagging a little more. I couldn't tell, and since there were no cracks in the fresh paint I didn't think much about it. On Wednesday, when she told me that it was definitely sagging, I noticed for the first time that "fault cracks" had started to form in the paint. Fascinated, I made marks on the cabinet to see how fast it was sagging.
I made the mark on Wednesday.
On Thursday night, while doing the dishes, I opened my cabinet, and something was definitely wrong.
As you can tell from this photo, in just 24 hours, the cabinets had sagged OVER 1 INCH! Whatever was happening was accelerating.
Total sag was about 3 inches - probably 2" total since I moved in March, of which 1" in the last 24 hours.
Ideally, the bottom of these cabinets would be just under 19" from the countertop. Conveniently, I had a couple of pieces of wood that were 18" long, and about 12" wide. I also had a 3/4" plank of wood that's 12" wide and about 4' long. I was lucky.
I went to Home Depot and rented a jack for $14 (I didn't realize until later that I could use the jack in my car, but whatever), and placed the long board directly underneath the cabinet, and started jacking it up.
By the time I was finished, the marks I had made on Wednesday were now about an inch apart in the other direction.
And the cabinet went almost all the way to the ceiling.
I set the two pieces of wood underneath the cabinet, and stabilized it.
Of course, this is about as stable as a house of cards, because the only thing holding those boards in place is friction and gravity. I picked up a few corner brackets to hold things in place, but I'm not sure how effective that's going to be against an accidental knock. But at least, with a little prudence, the cabinets won't fall on us now.