My family has two side door, one is the study, the other is the kitchen. For me to live alone, I may not need two doors to close at the same time. Now I have a barn door on top of two openings, a barn door, a practical function to meet, and save money, the key is also get their own super like effect.
And Guchangmon can be torn down. If you move, it makes no sense to take a normal door to the house, because the size of the gap can not be used for a new home, and when the barn door is demolished it often finds its own new home.
Sealing and noise-proof effect can not be compared with the general door, unable to install the door lock. Not suitable for the bedroom, bathroom and other space.
The problem of the inability to install the door lock can be solved by installing the traditional clasp lock, but the problem of sealing and noise-proof effect is really impossible to solve. Toilet is absolutely not recommended, because the smell and water vapor will be dispersed to the outside space, it is not very embarrassing.