Popsugar Living Diy DIY Ikea Built-In Bookcases This Genius Ikea Hack Adds Loads of Storage June 17, 2018 by Laura Irion View On One Page Photo 22 of 24 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 22 Step 15: Put on Doors and Knobs Put the doors on. The IKEA instructions will tell you how to install them and how to level them. Leveling them is key. Install new knobs. Previous Next Start Slideshow DIYIkea