The most appropriate unit of measurement for determining the width of a room is usually the yard, but it is dependant on the size of the room being measured. If the room is small, it is more suitable to measure in feet.
The width and the length of a room is used to measure the total area of the room. If the room is rectangular, the width measured in yards or feet is multiplied by the height measured in the same unit; this produces the area of the room in square yards or square feet. Another appropriate unit for measuring the width of a room is meters.