For a full (double) bed, a 6x9 rug is the best size — placed sideways under the bed it leaves a generous border of about 27 inches of rug showing on each side. A 5x7 works when the bed sits in a corner or as a bedside accent, and an 8x10 gives the full, hotel-style border if your room can take it. A full mattress measures 54 x 75 inches, and that number is the key to every calculation below.
- A full/double mattress is 54 x 75 in (137 x 190 cm) — size the rug to that, not the room.
- Best all-round pick: 6x9, placed sideways (perpendicular) under the bed.
- 5x7 = corner-bed or bedside accent; 8x10 = luxury full-coverage.
- Place the rug under the lower two-thirds of the bed, stopping before the nightstands.
- Can't fit a big rug? Two 2x6 runners beside the bed do the same job for less.
The exact numbers: how much rug shows with each size
This is the part most guides skip. A full mattress is 54 inches wide, so simple subtraction tells you exactly how much rug you'll see on each side of the bed. "Sideways" below means the rug's longer side runs across the bed — the way designers usually place a bedroom rug.
| Rug size | In inches / cm | Rug visible each side (sideways) | Verdict for a full bed |
|---|---|---|---|
| 5x7 | 60x84 in / 152x213 cm | ~15 in | Workable; best for corner beds or beside the bed |
| 6x9 | 72x108 in / 183x274 cm | ~27 in | Best fit — balanced border, sensible price |
| 8x10 | 96x120 in / 244x305 cm | ~33 in | Luxury look; needs a room ~12x12 or larger |
One honest warning from those numbers: a 5x7 placed lengthwise under a full bed leaves barely 3 inches of rug on each side — it disappears. If a 5x7 is the budget, run it sideways under the lower half of the bed, or skip under-bed placement entirely and lay it alongside.
Four layouts that work for a full bed
- Sideways under the lower two-thirds (the classic). Slide the rug under the bed so it starts just in front of the nightstands and extends past the foot. Even borders on three sides, warm floor where your feet land.
- Corner bed + 5x7 beside it. If the bed sits against a wall or in a corner, only one or two sides are exposed — a 5x7 laid along the open side covers everything that matters.
- Rug at the foot of the bed. A 5x7 placed fully past the footboard adds colour and works in rooms too tight for under-bed placement.
- Two runners instead of one big rug. A 2x6 runner on each side of the bed gives soft landings on both sides, costs less than a 6x9, and each one fits in your washing machine. See our runner rugs.
Don't forget the bed frame
Mattress math is the starting point, but your frame or headboard usually adds 2 to 6 inches of width. Measure the frame, not the mattress, if your bed has a chunky base — otherwise your calculated border shrinks in real life. And if the rug sits on a hard floor, a thin non-slip pad keeps it from creeping every time you get out of bed.
Why a washable rug makes sense in a bedroom
Bedrooms collect dust, and a rug under a bed is awkward to deep-clean in place. A low-pile machine washable rug solves that — pull it out once a season and wash it instead of living with whatever's settled into it. For allergy sufferers that's the difference between vacuuming over dust and actually removing it.
Full bed vs other bed sizes
If you're furnishing more than one room: a queen (60 in wide) steps up to an 8x10, and a king (76 in wide) wants a 9x12 — our guides to queen bed rug sizes and bedroom rug sizing by bed cover those. For every standard size in one place, see the complete rug size guide, or browse bedroom rugs.
Written by the Arconiz team. We work directly with Turkish manufacturers, no middleman, and we wash-test the rugs we sell.
