We have a bonus room on the top story of our house. The room is built inside the attic; on the other side of every wall is open attic space. I want to use this space to recess our AV equipment in a custom built cabinet; the spot is not load bearing.
The cabinet is 36" x 20" x 20" (HxWxD). I realized the normal width between stud is 16" so I have to accommodate that. I plan to use 1/2" or 3/4" birch plywood from big box, pocket hold jig, and a shelf jig.
Here is where I'm stuck. Do I need to frame out the shelf with 2x4's and lay down dry wall? Or can I build the shelf the width of the stud and join it to the studs? The ladder I would support the back with 2x4 from the floor to roof in the attic. Either way I will need ample insulation around the unit.