Among the many features of folding doors, the reason why folding doors are installed in academies and schools is to increase space utilization. It can be used by closing the door to separate the large space, or by folding the door to expand into one space. It is a folding door that is excellent for space efficiency that can be divided into indoor spaces.

Also, the sound insulation effect and insulation effect can be greatly seen. In this regard, this English academy has been installed close to the entrance door inside the academy, blocking outside noise secondaryly. When closed with a rubber gasket on each side of the door, it provides better sound insulation and insulation with higher air tightness and airtightness.

Also, it is excellent for safety in institutes with many students because rubber gaskets allow safe use without injury despite accidental hand clasping due to carelessness.