We added 1×8′s around the bottoms and 1×2′s to the sides of the BILLY bookcases for decorative molding. We painted them white and mint on the backs. We then brought them into the room and attached them to the wall using L-brackets. The tops are finished with more wood and crown molding. Once in, we painted the top section white to match.
The desktop is a 3/4″ plywood desk wrapped with 1×4’s.