We wanted a beautiful bespoke looking bookcase for our home office but the quotes we had were insane. Instead, we bought some IKEA units and built them in to the wall ourselves! This IKEA bookcase hack has saved us over £2k! We bought 4 x Havsta units from Ikea.Once built, we screwed them together and placed where we wanted them in the room. The units didn't come with a back so to create a more "in built" look we added some MDF to create a "wall" at the back.We added batons aroun…