Here you see the before and after.
As mentioned before her husband opened the wall and framed an opening for the shelving. Then it sat this way for several years, because her husband had no clue how to build the shelves.
NOTE: Take precautions when opening up a wall for additional storage space. If it’s a structural supporting wall, framing will need to include a header for the wall to maintain stability. If you’re not sure, ask for help. You don’t want to compromise the structure of your home.