"In this user-friendly project guide using IKEA Billy bookcases and Oxberg doors, you can easily build a fireplace that makes a custom statement, without the custom cost. This is an intermediate DIY project (if you know how to measure properly and make mitered cuts on your miter saw, you can absolutely build this!) Hiring a contractor would cost $3,000-$10,000 for a build of this caliber. Using this plan, you'll only spend ~$1,300 all in and a few days of your time. Because of Ikea's…