By definition, an exterior door is a doorway that allows entrance into a building or an exit into the outside world. It is also the first element of a house that might prelude how it will be inside before we actually enter it. It can also act as an identifier so that guests can easily spot your place. This is very common in places like London where there are a lot of identical houses in a row and painting your door a bright easily differentiated color is a sure way to make it very easy to spot. There are lots of different materials that can be used for doors, like…