WALLS AND WINDOW TREATMENTS 3(1+2)

Lesson 8 : Wall Element – Door

Collapsible Steel Doors

Such doors are used in godowns, workshops, sheds, public buildings etc., for providing increased safety and protection to property. The door neither requires hinges for opening and closing, nor any frame for hanging them. It acts like a steel curtain which can be opened or closed by horizontal push. Such a door is even provided in residential buildings where opening is large but there is not enough space to accommodate leafed shutters.