Most queen and full beds take an 8x10 rug, set about two thirds of the way under the bed so rug shows on both sides and past the foot. A king takes a 9x12 or 10x14. A twin takes a 5x7 or 5x8, or a 3x5 rug on each side. Plan on 2 to 3 feet of rug past the sides of the bed.
The rug should be big enough that your feet land on it when you get out of bed. That one test rules out most rugs that are too small.
Rug size by bed size
Retailer guides agree on the basics. Ruggable suggests a 5x7 for a twin, an 8x10 or 6x9 for a full or queen, and a 9x12 or 10x14 for a king. Rugs.com adds the clearance: 2 to 3 feet of rug past the sides of a twin, full, or queen, and at least 3 feet past the sides and foot of a king.
| Bed size | Rug size | Rug past the sides | Side option |
|---|---|---|---|
| Twin | 5x7 or 5x8 | 2 to 3 feet | A 3x5 rug on each side |
| Full | 6x9 or 8x10 | 2 to 3 feet, and past the foot | A runner or 3x5 on each side |
| Queen | 8x10, or 6x9 in a small room | 2 to 3 feet, and past the foot | A runner or 3x5 on each side |
| King | 9x12 or 10x14 | At least 3 feet, and past the foot | A runner on each side |
Three ways to place a bedroom rug
There are three standard placements, and the right one depends on the size of the room and the rug.
Two thirds under the bed is where most guides start. The rug runs sideways under the lower part of the bed and starts just in front of the nightstands, which stay on bare floor. Room & Board recommends this placement for an 8x10.
Full under the bed and nightstands takes a bigger rug. Room & Board points to a 10x14 for a king bed with two nightstands. In a larger room, it suggests leaving about 18 inches between the rug and the walls.
Runners on each side work in narrow rooms. Room & Board suggests a runner or a 3x5 rug on either side of the bed for balance. Ruggable lists two 3x5 rugs as an option for a twin.
How to check the size before you buy
Step 1: Tape the outline on the floor
Mark the rug's edges with painter's tape and walk around the bed. Doors, drawers, and the closet should open without catching the rug.
Step 2: See the rug in your room first
Upload a photo of the bedroom to House AI, set the room type to bedroom, and describe the rug and placement in your own words. Each design takes about 15 seconds, and every user gets 3 free designs a day. AI doesn't measure your room, and small details can drift, so trust your tape for the size and the render for the look.
Frequently asked questions
Is a 5x8 rug big enough for a queen bed?
Usually not. Ruggable and Rugs.com both point to a 6x9 or 8x10 for a queen. Room & Board shows a 5x8 under half or more of the bed only in small layouts.
Should a rug go all the way under the bed?
It can, if the rug is big enough to also hold the nightstands, such as a 10x14 with a king. Otherwise, two thirds under the bed looks more balanced.
How far should a bedroom rug extend past the bed?
About 2 to 3 feet past the sides for a twin, full, or queen, and at least 3 feet for a king, according to Rugs.com.
Can I use runners instead of one big rug?
Yes. A runner or a 3x5 rug on each side of the bed gives both sides a soft landing and works well in narrow rooms.
Keep reading
- What Size Rug Do I Need for My Living Room?
- Bedroom Design Ideas for 2026, Tested on Real Rooms
- How Much Does It Cost to Furnish a Bedroom?
- How Long Should Curtains Be?
- How Do I Make a Small Room Look Bigger?
Sources: Ruggable, "Bedroom Guide," checked October 17, 2026. Rugs.com, "Complete Your Bedroom Retreat with Perfectly Sized Rugs: A Guide by Bed Size," August 25, 2023, checked October 17, 2026. Room & Board, "How to Choose a Rug Size," checked October 17, 2026. House AI figures come from the House AI app.