the ideal height and width. if one person is passing with luggage & other is coming from opposite direction, both should pass easily through door. 99% of the target population must pass the door without bending, as smaller people won’t be bothered by a door that is too high.
as human, we judge the height of certain things in a particular way, e.g. we judge the height of persons by seeing when they walk through a doorway. we judge it by seeing how much space there is between their head and top of the doorway. closer their head is to the top, the taller they are!
normally the basic home itself as 