Staircase Hidden Door14. Additionally, the Hidden Door Store has an innovative way of avoiding faulty hinges, a common problem with doors. This is an advanced do-it-yourself project. Image courtesy of . The InvisiDoor can be used to conceal a seldom used room, create a hidden safe room or turn a door into a functional storage and display area. Mirror Secret Door19. But that’s not even the best of them. 4.3 out of 5 stars 495. A whole library is created here disguising a room door and a cupboard within the wall of books. Sep 23, 2020 - Here's a bunch of ideas that you can use to create your own custom Murphy Still pricy… around $140. Alamic Door Pivot Hinges Heavy Duty Hinges for Doors Stainless Steel Pivot Door Hinge System. $17.99 $ 17.