Your starting point
Choose the furniture arrangement first and measure the footprint you want the rug to connect. Then compare that with the room’s usable floor area. A larger rug often joins a seating group, but “go bigger” stops being helpful when a door, route, or chair no longer works.
Measure the arrangement, not just the floor
For a living room, decide whether all furniture legs or only the front portions will sit on the rug. Measure from the outside of one seat to the outside of the other. Include any chair angled into the grouping. A sofa-only measurement will miss the space occupied by companion chairs.
For dining, pull out the chairs as if people were leaving the table. For a bedroom, check where bare feet land and whether under-bed drawers open over the proposed rug. These are different jobs and should not use the same sizing shortcut.
IKEA’s guide supports connecting living-room furniture fully or partially and extending a dining rug beyond the table so pulled-out chairs remain on it. Our calculator translates those principles into an explicit footprint and room-fit test.
Use stock sizes as candidates
Common North American labels include 5 × 8, 6 × 9, 8 × 10, and 9 × 12 ft. Metric ranges often include 160 × 230, 200 × 300, and 240 × 340 cm. These are separate product conventions, not exact conversions. Read the actual measurements on the item you intend to order.
A 200 × 300 cm rug is approximately 6.56 × 9.84 ft; it is not precisely an 8 × 10. If you are shopping across countries, compare dimensions in one unit throughout. Round or irregular rugs need a separate shape check. The calculator handles rectangular rugs only.
| Area | Measure this | Verify in the room |
|---|---|---|
| Living | Seating-group width and depth | Every intended seat touches the rug consistently |
| Dining | Table plus actual chair pullback | No chair leg catches the edge during use |
| Bedroom | Bed and the desired landing space | Doors and drawers clear the finished thickness |
Tape out two sizes
Mark each candidate with low-tack tape suitable for the surface, testing an inconspicuous spot first. Leave it for a normal day of movement. If the outline runs into a door swing or gives only one person a soft bedside landing, revise the arrangement.
Consider thickness as well as width and length. A plush pile plus underlay may jam a door or make chair movement difficult. Ask for a sample when surface texture matters. Product photographs rarely reveal the feel of a rug under bare feet or how easily a chair rolls.
Use the rug size finder to narrow the candidates, then make the final choice with the room test. If no stock size passes, it reports that rather than forcing a recommendation.
Choose material for your routines
Write down what the rug will face: outdoor shoes, crumbs, pets, direct sun, rolling chairs, or frequent washing. Then read the actual care instructions. A natural-fiber label does not tell you whether the rug tolerates moisture, and a washable label does not mean a large size fits your machine.
Low pile can suit moving dining chairs and frequent vacuuming. A more textured or plush surface may feel better beside a bed. Looped construction can be a poor match for pets that snag it. Request manufacturer guidance for the specific fiber and construction instead of assuming every wool, cotton, or synthetic rug behaves alike.
Choose an underlay compatible with both floor and rug. Check the floor manufacturer’s advice, especially for coated timber and vinyl. Keep edges flat and avoid a small loose mat directly in a busy route.
Budget for the whole purchase
Add the price of underlay, delivery, and possible return shipping to the rug itself. Large rolled items can be inconvenient to return. Confirm the return conditions before ordering, including packaging requirements and whether a trial in the room affects eligibility.
If the ideal large rug exceeds the budget, compare a simpler construction or wait for the right dimensions instead of automatically buying a smaller decorative rectangle. In a bedroom, separate runners may solve the actual comfort problem. In a dining room, no rug may be the better choice.
Pattern can be a useful bridge between existing colors, but avoid asking a rug to rescue a layout that still does not work. Fit first, care second, appearance third is a practical purchase sequence.
Your practical checklist
Tick these as you go. Choices are saved in this browser when storage is available.
Common questions
Is an 8 × 10 rug enough for my living room?
The size label alone cannot answer that. Measure your seating arrangement and usable room area, then test its exact dimensions.
Can I put a rug over carpet?
Sometimes, but movement, rippling, furniture stability, and product compatibility need checking. Ask the rug and carpet suppliers about the specific combination.
What if the calculator finds no size?
Recheck the measurements and orientation, consider a different arrangement or custom size, or use smaller functional rugs where suitable. Do not buy a size known not to fit.
Sources & editorial approach
- IKEA Canada: A complete rug size guide — Furniture placement and dining-chair extension. Product sizes vary; our calculator uses an independently defined stock-size list.
Source links reviewed October 3, 2026. Advice and examples are our editorial synthesis; dimensions are starting points, not universal requirements. How we create our guides.