Walls are usually a permanent structure that defines a place or range and ensures its safety. The vertical side of a building is generally called a wall. The shape of the building is created because of the walls. The walls can also be responsible for the structure of the building unless it is high. The wall responsible for the structure is called the load bearing wall. Separating different ranges is also one of the functions of walls. In ancient times, walls were made of sun-dried bricks, wood, bamboo, stone, etc. Later bricks were used extensively in almost all civilizations. Nowadays concrete walls have become quite popular.
Windows and doors are important accessories for walls. Windows are the medium of light and ventilation in the interior space that is created by the combination of walls and roof. And the door is a means of bringing people or other elements into that range.
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