IKEA Hacker featured this project using a Bonde bookcase. Nicole added 4 castors to the bottom and a sliding rail at top, along with reinforcing the cabinet, to create a sliding bookcase door for a half bath. This isn’t completely secret since the rail is fully...
This custom installation, documented on Imgur, shows a hot tub mounted in the floor near a fireplace. It can be completely hidden under a “walk on” cover and an area rug.
