Hardware is Unique to your application, depending on what type of finish wall you have, various hardware is needed. Such as if Concrete Wall you will need to Drill and then use Concrete Bolts, or Wood, use deck screws etc. Just match with your material type, we don't include hardware because everyone places these with many material finish walls
Cut out: 3-1/4" H x 13-1/2" W
There is one panel per box.
13" With by 2.5" Height, basically measure in around a Inch all the way around, Still it is Best to have the Panel On-Site before doing Cut-Outs