Turns out hidden doors aren't just for suspenseful moments in mystery movies after all, Matt Risinger is a huge fan of hidden doors, not only for how purposeful they are but also for the craftsmanship that goes into creating one. This particular door is pretty cool, it's a door that's hidden in a bookshelf in a bedroom, leading to a hidden art studio. The challenge is making it easy to access but also easy to operate, especially if it's in a child's bedroom. Risinger says it's important to try to use true plywood and poplar on the trim, because you don't want the paint to wear or the wood to sag over time, which would totally give away the door eventually. The floor also really needs to be perfectly level, otherwise the door is a giveaway and might as well just be a regular door. When buying hinges, always remember to upsize the because you're going to need heavy duty with the weight of all those books. And one last thing is making sure there is a return air system, since air would escape from the room and make it pretty stuffy and uncomfortable. Watch the full video to see how this hidden door turned out!