Good find. Makes you want to look for more. My sofa leg punched through the floor and when I pulled the sofa out from the wall I found 2 huge holes cut through the floor in the rear corners where wiring and fresh water hose came through. I could see the ground. Enough space for a squirrel to enter. I got a can of expanding foam and filled them in. Then hunted down and filled several more smaller ones.
2013 Rockwood 8282WS
Reese Revolution Pin, Reese 16K
2008 Tundra Limited Double Cab 5.7L
Air Lift 5000 w/Wireless Air