Dollar coins have never been very popular in the United States since the removal of specie coins from circulation. Despite efforts by the government to promote their use, such as the Presidential $1 Coin Program, most Americans currently use the one-dollar bill rather than dollar coins.
Width and Height. An interior passage door is any door that you use to move from one room to another, and the code requires these to be 80 inches in height. Because this corresponds to 6 feet 8 inches, door manufacturers refer to this as a 6/8 door.
Dimensions of a Standard Door. In the U.S., the standard door size is 36 inches by 80 inches or 0.91 meter by 2.03 meters. In some areas, the usual door size is 1.2 meters by 2.1 meters, which is widely used in comfort rooms, bedrooms as well as in main entries. The width of doors is 0.8 meters or more, depending on the purpose.