I purchased the door block off plates because the plastic liner on my Ford F-250 was not sealed and water was coming through. The plates are solid, but not heavy. They fit perfectly and seal the large door hole quite well to prevent water from entering into the cab and soaking the carpet. Easy installation with metal screws. Screw spacing is adequate for a solid mount, but I would have liked a little tighter spacing along the bottom for water seal purposes. I recommended these for my coworkers suffering from the water leak problem on their Ford trucks as well.