I decided to build bookshelves on either side of the fireplace, where it was just drywall. I wanted them to be flush with the wall, and the garage is behind the wall. So, I built them into the garage.
I put headers above where the bookshelves would be, and framed the back side in the garage with just 2x4's. I used full sheets of bead board to cover the backs and sides, and tops. Then I bought pre made shelves and put them up using quarter round to support the shelves on all three sides.
I then bought a door frame kit that I liked, that came with fluted pieces for the sides and top with decorative squares to put at the corners. I caulked and painted it all once it was built. I used a circular saw, framing nail gun, compressor, trim nail gun, chop saw and a hammer total. It was a pretty simple project but has made the space much more useable and pretty. My next project is to build a mantle and surround that matches the bookshelves.
