5 points to anyone who can explain this. Did a 1994 house today with very few issues and no jackleg alterations that I noticed. In the crawlspace, directly below the kitchen, I see this peice of pressure-treated sandwiched between 2x6s and bolted to the underside of the joists. It dead ends into thin air on both ends (about 12 feet long) and doesn’t rest on anything else, although there are other piers nearby. Why?