Doors serve as a connecting link between the various exterior and interior portions of a building
Doors when open, admit ventilation and light, facilitate views and act as a barrier to noise.
Doors have an aesthetic role in creating an impression to the viewers.
Doors are also used to control flow of traffic.
Doors control climate, provide light and ventilation, sounds, smells, breezes, warmth and cold to travel in and out of home and between rooms and expand visibility
Doors are generally used to separate interior spaces (rooms, closets, etc.) for privacy, convenience, security, and safety reasons.
Doors influence furniture arrangement, add decoration, emphasize the overall design of building.
The number of doors in a room should be kept minimum since larger number of doors cause obstruction, and consume more area in circulation.
The location of a door should meet functional requirements of a room. It should not be located in the centre of the length of a wall.
A door should preferably be located near the corner of a room-nearly 20 cm away from the corner.
If there are two doors in a room, the doors should preferably be located in opposite walls, facing each other, so as to provide good ventilation and free-air circulation in the rooms.
A number of other factors that influence the location of doors are circulation path, furniture arrangement, view and privacy and also light, heat and cold control.
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