Awesome built-in bookcases. Spent $400 & about 7 hours. Start w/ our of these 15 inch deep Billy bookcases from IKEA (31.5" wide by 79.5" tall; use molding, Carefully cut existing molding from wall, lined up the bookcases, reused the molding in the front of the bookcases, re-routed elec outlets, etc. See the DIY project HERE. Way cool!!