How to measure a rug for a UK room

By Emma Whitfield · Published 22 September 2026 · 6 min read

UK rooms are smaller and narrower than the US ones most rug guides quote. Copying an American diagram lands you a 240 × 305 cm piece that swallows a British sitting room. Here is what actually works.

The four rules that cover 90% of cases

  1. 60 cm exposed floor on each side of the rug. That is the visual margin that reads as a finished room and lets a Miele C3 or Dyson V15 turn cleanly along the perimeter.
  2. Front legs of every seat on the rug. In a UK 3+2 sitting-room layout, that means a 200 × 290 rug minimum. A 160 × 230 leaves the front legs of a standard 190 cm sofa hanging off the edge.
  3. Dining chair sweep of 60 cm on all four sides. Chairs are pulled out 45–55 cm to sit down; the extra centimetres stop the back legs coming off the pile.
  4. 60 cm exposed floor at each end of a hallway runner. Doors sit on hard floor, both ends. A 200 cm runner between a 300 cm hallway leaves the two 50 cm ends bare.

Room by room

Living room

Measure the sofa width. If it is under 190 cm, a 160 × 230 works with front-legs-on. If it is 200 cm or more, jump to 200 × 290. In an open-plan layout with an armchair opposite the sofa, size the rug to the seating cluster, not the room – extend the rug 20 cm beyond the outer edge of the outer seat.

Bedroom

Bed size drives everything. UK king (150 × 200 cm bed): 200 × 290 rug sits under the lower two-thirds with 60 cm exposed each side of the bed. UK super king (180 × 200 cm bed): 240 × 340 rug for the same effect. Alternatively, two 80 × 300 runners flanking the bed – cheaper, easier to launder, and popular in rental flats.

Dining

Measure the table extended (leaves in), not folded. Add 60 cm on all four sides. A 180 cm rectangular table extends to 240 cm with the leaf; add sweep and you need 360 × 300 cm at minimum – the standard 240 × 340 is generous but not oversized. Round tables: the rug diameter is the table diameter plus 120 cm.

Kitchen and bathroom

Standard bath mat is 50 × 80 (basin) or 60 × 90 (bath-side). In a galley kitchen, a 50 × 150 runner in front of the sink covers the standing zone. Machine washable is not a nice-to-have here – spills happen and no professional cleaner will collect a food-stained rug.

Test with masking tape before you buy

Mark the four corners of the intended rug on the floor with masking tape, live with it for 24 hours, then buy. This one step catches 80% of returns – the rug that read as small on paper often reads as huge in a UK sitting room, and vice versa.

Frequently asked questions

Should the sofa sit fully on the rug?

Ideally yes for a large living room (240 × 340 or bigger). In a UK 3+2 arrangement the pragmatic compromise is 200 × 290 with the sofa front legs on the rug – the back legs sit on hard floor. Both are correct; a sofa half-on-half-off partial (only two legs of a three-seater) is what looks wrong.

What tool do I actually need?

A 5-metre steel tape (Stanley Powerlock is the shop standard, £8 on Amazon.co.uk) and masking tape. Mark the rug outline on the floor with masking tape before you buy – every rug looks smaller in the box.

Do I subtract for skirting boards?

No. Skirting boards are outside the pile plan. Measure to the wall, then subtract 30–45 cm on each side for the exposed floor border that reads as a finished room.

Our verdict

Measure the furniture, not the room. Test with masking tape. Buy to the standard UK sizes (160×230, 200×290, 240×340) because that is where the stock, the choice and the price competition sit – non-standard sizes on Amazon.co.uk carry a 20–40% premium for the same construction.

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