Rug Size Calculator

Most living rooms need an 8' × 10' rug. Ruggable pairs it with rooms of about 11' × 13' and up, leaving 12 to 18 in of floor to the walls. The rug should run at least 6 in past each end of your sofa. Small rooms suit a 5' × 7' or 6' × 9' under the coffee table; large or open-plan rooms suit a 9' × 12'.

Usually not. An 8' × 10' suits living rooms of about 11' × 13' and larger, and it is the size most guides give for a front-legs layout with a three-seat sofa. It is too big only when it leaves less than about 12 in of floor to a wall, or when the sofa can't sit with its front legs on it. In a 10' × 12' room, a 6' × 9' fits better.

Not for a room of 12' × 18' or larger, or an open plan, where Ruggable recommends a 9' × 12'. In a 12' × 15' room it leaves about 18 in of floor on each side and works best with all the furniture legs on it. In smaller rooms it crowds the walls, so an 8' × 10' is the better choice.

An 8' × 10' rug, laid sideways under the lower two-thirds of the bed (Saatva, Ruggable). Under a 60 in wide queen mattress it shows 30 in of rug on each side and about 43 in past the foot, more than the 18 to 24 in Ruggable asks for. To fit the bed and both nightstands on one rug, go up to a 9' × 12'.

A 9' × 12' rug, with the 12 ft side across the bed and the lower two-thirds of the bed on it (Saatva, Ruggable). Under a 76 in wide king it shows 34 in of rug on each side. It also suits a California king, which no guide lists separately. In a smaller bedroom, an 8' × 10' still leaves 22 in at each side of a king.

Choose a rug that extends at least 24 in past every edge of the table, so chairs stay on it when pulled out (Ruggable). Add 48 in to the table's length and width: a 72 × 40 in table needs 120 × 88 in, which an 8' × 10' covers; a 9' × 12' gives 30 in of room. For a round table, add 48 in to the diameter.

Leave 12 to 18 in of bare floor between the rug and the walls in most rooms (Ruggable); The Rug Decor suggests 18 to 24 in. Large rugs such as a 10' × 14' can leave 18 to 36 in. Less than 12 in makes the rug look wall to wall, and much more than 36 in all round can make it look too small for the room.

Pick a runner that leaves 4 to 6 in of floor on each side and about 6 to 12 in at each end. Atlanta Designer Rugs suggests a 26 to 28 in runner for a 36 in hall, 28 to 32 in for a 42 in hall and 30 to 36 in for a 46 to 48 in hall. Standard runner widths are 2 ft, 2' 6" and 3 ft.

A 4x6 rug measures 4 ft by 6 ft: 48 × 72 in, or about 122 × 183 cm, and covers 24 sq ft. That is accent size, too small to sit under a sofa or a bed. For a small living-room seating area, Ruggable starts at a 5' × 7' or 6' × 9' under the coffee table.