What Size Rug Do I Need? Standard Sizes for Every Room

The short answer

The right rug leaves a border of bare floor all round it. A room 14 × 12 ft with 18 in of border has room for a rug of 11 × 9 ft, so the largest standard size is 8 × 10 ft. The rug size calculator finds it for your room.

Rug Size Calculator: The Right Area Rug for a RoomThe area rug size that leaves a border of bare floor round it, and the largest standard rug that fits the room.
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Part of the project planner: Planning new floors and tile.

The largest standard rug for common rooms

With 18 inches of bare floor round the rug.

RoomIdeal rugLargest standard rug
10 × 10 ft7.0 × 7.0 ftNone fits
10 × 12 ft7.0 × 9.0 ft6 × 9 ft
12 × 12 ft9.0 × 9.0 ft6 × 9 ft
12 × 14 ft9.0 × 11.0 ft8 × 10 ft
14 × 16 ft11.0 × 13.0 ft9 × 12 ft
15 × 20 ft12.0 × 17.0 ft12 × 15 ft
18 × 20 ft15.0 × 17.0 ft12 × 15 ft

How the border changes the size

For a room of 14 × 12 ft:

BorderIdeal rugLargest standard rug
12 in10.0 × 12.0 ft9 × 12 ft
18 in9.0 × 11.0 ft8 × 10 ft
24 in8.0 × 10.0 ft8 × 10 ft

Where the rug goes

  • Living room. At least the front legs of the sofa and the chairs on the rug.
  • Dining room. The rug should reach 24 inches past the table on every side, so the chairs stay on it when pulled out.
  • Bedroom. A rug under the bed that shows about 24 inches on each side and at the foot.

Before you buy

  • Mark the rug on the floor with painter's tape and look at it for a day.
  • Between two sizes, the larger usually looks better.
  • Buy a rug pad one or two inches smaller than the rug.

See also the carpet calculator and the flooring calculator. Rug sizes vary a little by maker.

Frequently asked questions

What size rug do I need for my room?

Take the room less 12 to 24 inches on each side. For 14 × 12 ft and 18 in, the ideal is 11 × 9 ft, so an 8 × 10 ft rug.

How much floor should show around a rug?

About 12 to 24 inches. Eighteen inches is the usual figure.

Is 8×10 big enough for a living room?

In many rooms, yes: about 11 × 14 ft up to 14 × 18 ft. A larger room or a sectional may need 9 × 12 ft.

Should the sofa be on the rug?

At least the front legs of the sofa and the chairs, so the seating looks tied together.

What are the standard rug sizes?

5 × 8, 6 × 9, 8 × 10, 9 × 12, 10 × 14 and 12 × 15 ft, with round, runner and custom sizes besides.

Carpet CalculatorHow much carpet to order for a room, with roll width, seams and pad.
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Flooring CalculatorBoxes of laminate, vinyl plank or hardwood for a room.
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Rug Size Calculator: The Right Area Rug for a RoomThe area rug size that leaves a border of bare floor round it, and the largest standard rug that fits the room.
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More guides

Tools & materials for this project

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Estimates only. Quantities depend on your materials, site and supplier. Confirm important numbers before you order, and follow local building codes for anything structural.