A rug can turn a boring room into a bright, exciting and comfortable room. Why should almost every room have a rug in it? A rug is the heart of every room. Rugs come in all different shapes, sizes, and material.Rug’s can come in different sizes such as, 2 by 3, 3 by 5, 4 by 6, 6 by 9, 8 by 10, 9 by 12, 10 by 14, 12 by 15, 10-foot runners, and so on. Those are just the standard sizes of rugs. The size of the rug you buy depends on the room you will put it in. Most of the time you would want a rug to cover about 4/5ths of a room so you can contrast the regular floor with the rug. The best way to know the size of the rug you should buy is by simply taking a ruler and measuring the size of the area you would like to place the rug.