When figuring the size of your rug, consider the size of your room and your decorating tastes. How much floor space do you wish to show?
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Would you like your furniture on the rug for a warm feeling?
Would you prefer your furniture off your rug for a crisper look?
A small area rug can provide a focal point.
When placing a rug under a dining table, remember to leave enough room so that the chair legs remain on the carpet when pulled out. About two and a half feet beyond each dimension of the table should leave enough room.
A room-size rug sets the ambience for the room.
Don't forget comfort too - for example, installed broadloom in a bedroom, hallway, or family room insulates while creating a comfortable place to relax and play.