TikToker Renee Renovates was on a mission to turn her parents' guest room into ... to create the built-in shelving. Together, these made two massive walls of built-in bookshelves.

[Korostelevm] did an amazing job of hiding a small closet with a bookcase-door. It’s something straight out of a Hardy Boys novel. Possibly the most important part of the build is figuring out ...

Built-ins are essentially pieces of furniture or storage spaces that are permanent parts of the home - such as a bench seat nestled below a window or a set of bookcases flanking a fireplace.