Enter the room's length and width. We check every standard rug size against the border rules.
Rug size calculator
Room size.
Best fit (18 in of floor showing)
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How it works
Room & Board suggests leaving about 18 inches of floor exposed around a large rug. The calculator lists the standard sizes that leave at least that much on every side, and marks the largest as the best fit for an all-legs-on layout. For bedrooms and dining rooms, see the rules in standard rug sizes.