{
  "tool": "rug-size",
  "version": "1.0.0",
  "inputs": {
    "sofa_width_cm": 210,
    "sofa_depth_cm": 90,
    "room_width_cm": 400,
    "room_length_cm": 450,
    "legs_on_rug": "front",
    "armchairs": "none"
  },
  "answer": {
    "uk_rug": {
      "name": "200 × 290 cm",
      "width_cm": 290,
      "depth_cm": 200,
      "turned": false,
      "meets_rule": true,
      "past_sofa_end_cm": 40,
      "floor_each_side_cm": 55,
      "floor_far_end_cm": 175,
      "sofa_share": 0.72
    },
    "us_rug": {
      "name": "6 × 9 ft",
      "width_cm": 274,
      "depth_cm": 183,
      "turned": false,
      "meets_rule": true,
      "past_sofa_end_cm": 32,
      "floor_each_side_cm": 63,
      "floor_far_end_cm": 192,
      "sofa_share": 0.77
    },
    "needed": {
      "width_cm": 240,
      "ideal_width_cm": 250,
      "depth_cm": 160
    },
    "least_floor_cm": 20,
    "plan": {
      "rug_from_cm": 75,
      "table_from_cm": 135,
      "table_length_cm": 125,
      "chairs_from_cm": 240
    }
  },
  "summary": "For a 210 cm sofa in a 400 × 450 cm room, choose a 200 × 290 cm rug (6 × 9 ft in US sizes), with the sofa’s front legs on it: it runs 40 cm past each end of the sofa and leaves 55 cm of floor each side.",
  "working": [
    "Along the sofa: 210 + 2 × 15 = 240 cm at least, 250 cm ideally (15–20 cm past each end).",
    "Into the room: 160 cm, for the sofa’s front legs on it.",
    "At least 20 cm of bare floor between the rug and each wall of the 400 × 450 cm room.",
    "Smallest UK stock size that meets both: 200 × 290 cm."
  ],
  "notes": [],
  "sources": [
    {
      "label": "Love-Rugs, Rug size guide UK (120 × 170, 160 × 230, 200 × 300, 240 × 340 cm)",
      "url": "https://www.love-rugs.com/blogs/advice/rug-size-guide-uk-dimensions",
      "checked": "2026-10-31"
    },
    {
      "label": "Ruglove, What size rug for living room? (200 × 290 cm)",
      "url": "https://www.ruglove.co.uk/blogs/rugs/what-size-rug-for-living-room",
      "checked": "2026-10-31"
    },
    {
      "label": "IKEA UK: the rug should be longer than the sofa",
      "url": "https://www.ikea.com/gb/en/rooms/living-room/how-to/how-to-choose-the-right-rug-size-pub4eafcf30/",
      "checked": "2026-10-31"
    },
    {
      "label": "Rugs.com, What size rug do I need? The complete rug size guide",
      "url": "https://rugs.com/blog/what-size-rug-do-i-need-the-complete-rug-size-guide-for-every-room/",
      "checked": "2026-10-15"
    },
    {
      "label": "Emily Henderson, Living room rug size (10–18 in in a small room, about 24 in in a large one)",
      "url": "https://stylebyemilyhenderson.com/living-room-rug-size",
      "checked": "2026-10-15"
    },
    {
      "label": "Livingetc (Wolfe, 22 Aug 2025), The two-thirds rule (12–18 in border)",
      "url": "https://www.livingetc.com/advice/two-thirds-living-room-rule",
      "checked": "2026-10-24"
    },
    {
      "label": "Architectural Digest, How to choose the right size rug (about 15–35 cm)",
      "url": "https://www.architecturaldigest.com/story/how-to-choose-the-right-size-rug-for-every-room",
      "checked": "2026-10-24"
    },
    {
      "label": "Castlery UK, Coffee table dimensions (5 Aug 2026)",
      "url": "https://www.castlery.com/uk/blog/coffee-table-dimensions",
      "checked": "2026-10-24"
    }
  ],
  "page_url": "https://snuug.app/tools/rug-size",
  "snuug": "Snuug is an iPhone app that rebuilds your room in 3D, to within about 3% of its real size, so you can redesign it and see what fits before you buy a thing. Not yet on the App Store (31 October 2026)."
}