{
  "description": "Ceiling heights, ceiling fan blade heights, door widths, lift car dimensions, floor live loads and flat sizes for Indian homes.",
  "licence": "CC-BY-4.0",
  "attribution": "https://fitmyflat.com",
  "source": "https://fitmyflat.com/reference/indian-flat-constraints",
  "ceilings": [
    {
      "context": "Habitable room (bedroom, living, dining) — NBC 2016 minimum",
      "clear_height_m": 2.75,
      "source": "National Building Code of India 2016, habitable room clear height",
      "confidence": "high",
      "notes": "This is a legal minimum, not a typical value. Many flats sit close to it."
    },
    {
      "context": "Typical Indian flat, 10 ft floor-to-floor",
      "clear_height_m": 2.84,
      "source": "Common Indian construction practice: 3.05 m slab-to-slab less slab and finishes",
      "confidence": "medium",
      "notes": "About 9 ft 4 in clear below the slab soffit."
    },
    {
      "context": "Generous / premium construction",
      "clear_height_m": 3.05,
      "source": "Upper end of the 2.75-3.05 m residential range",
      "confidence": "medium"
    },
    {
      "context": "Air-conditioned room — NBC 2016 minimum",
      "clear_height_m": 2.4,
      "source": "National Building Code of India 2016",
      "confidence": "high",
      "notes": "A room built to this minimum leaves very little headroom above a treadmill deck."
    },
    {
      "context": "Room with a false ceiling",
      "clear_height_m": null,
      "source": null,
      "confidence": "low",
      "notes": "False ceilings commonly remove 100-300 mm, but the figure depends entirely on the installation. We do not publish a number for this: measure it."
    }
  ],
  "fans": [
    {
      "context": "Blade underside — recommended minimum clearance from floor",
      "blade_height_m": 2.13,
      "source": "Ceiling fan safety guidance: minimum 7 ft from floor to blades",
      "confidence": "high"
    },
    {
      "context": "Blade underside — typical Indian installation, standard downrod",
      "blade_height_m": 2.45,
      "source": "Derived: 2.75 m NBC-minimum ceiling less a standard 75-125 mm downrod, fan canopy and blade depth (approx. 250-300 mm total drop)",
      "confidence": "medium",
      "notes": "Indian fans are usually mounted 8-10 ft from the floor. On a 2.75 m ceiling with a standard downrod the blades typically sit around 2.45 m."
    },
    {
      "context": "Blade underside — long downrod or high ceiling",
      "blade_height_m": 2.6,
      "source": "Derived from a 3.05 m ceiling with a standard drop",
      "confidence": "low"
    },
    {
      "context": "Standard Indian fan sweep",
      "blade_height_m": null,
      "sweep_mm": 1200,
      "source": "1200 mm sweep is the common residential size in India",
      "confidence": "high"
    }
  ],
  "doors": [
    {
      "type": "Main entrance door",
      "width_mm": 1000,
      "height_mm": 2100,
      "source": "NBC 2016 minimum exit door width 1000 mm; standard leaf height 2100 mm",
      "confidence": "high",
      "notes": "Commonly 1000-1200 mm wide. The frame steals 30-50 mm of clear opening."
    },
    {
      "type": "Bedroom door",
      "width_mm": 900,
      "height_mm": 2100,
      "source": "Standard Indian residential door schedule",
      "confidence": "high"
    },
    {
      "type": "Bathroom door",
      "width_mm": 700,
      "height_mm": 2100,
      "source": "Standard Indian residential door schedule",
      "confidence": "high",
      "notes": "Too narrow for almost any assembled equipment."
    },
    {
      "type": "Accessible dwelling — clear opening",
      "width_mm": 810,
      "height_mm": 2100,
      "source": "NBC 2016 accessibility: minimum 810 mm clear opening",
      "confidence": "high"
    }
  ],
  "lifts": [
    {
      "capacity_persons": 4,
      "load_kg": 272,
      "car_w_mm": 1000,
      "car_d_mm": 1250,
      "door_w_mm": 700,
      "source": "Typical clear cabin published for Indian 4-person lifts (IS 14665 family)",
      "confidence": "low"
    },
    {
      "capacity_persons": 6,
      "load_kg": 408,
      "car_w_mm": 1100,
      "car_d_mm": 1400,
      "door_w_mm": 800,
      "source": "Typical clear cabin published for Indian 6-person lifts (IS 14665 family)",
      "confidence": "medium"
    },
    {
      "capacity_persons": 8,
      "load_kg": 544,
      "car_w_mm": 1100,
      "car_d_mm": 1400,
      "door_w_mm": 800,
      "source": "Typical clear cabin published for Indian 8-person lifts (IS 14665 family)",
      "confidence": "medium",
      "notes": "Same width as 6-person in most vendor ranges; the car is deeper."
    },
    {
      "capacity_persons": 8,
      "load_kg": 630,
      "car_w_mm": 1100,
      "car_d_mm": 1400,
      "door_w_mm": 900,
      "source": "CPWD accessible-lift benchmark: 1100 x 1400 mm car, 900 mm clear door",
      "confidence": "medium",
      "notes": "The wheelchair-accessible benchmark; common in newer buildings."
    }
  ],
  "floors": [
    {
      "room": "Bedroom, living room, private room",
      "live_load_kn_m2": 2.0,
      "source": "IS 875 (Part 2): 1987, imposed loads for residential buildings",
      "confidence": "high"
    },
    {
      "room": "Kitchen, staircase, balcony",
      "live_load_kn_m2": 3.0,
      "source": "IS 875 (Part 2): 1987",
      "confidence": "high"
    }
  ],
  "flats": [
    {
      "context": "Average across India's top 7 cities",
      "area_sqft": 1540,
      "source": "ANAROCK Research, 2024",
      "confidence": "medium"
    },
    {
      "context": "Mumbai Metropolitan Region average",
      "area_sqft": 849,
      "source": "ANAROCK Research, 2024",
      "confidence": "medium",
      "notes": "The tightest major market in the country."
    },
    {
      "context": "Typical bedroom / spare room",
      "area_sqft": 100,
      "room_l_m": 3.05,
      "room_w_m": 3.05,
      "source": "Most Indian residential bedrooms fall between 100 and 150 sq ft",
      "confidence": "medium",
      "notes": "A 10 x 10 ft room is the usual home-gym space."
    }
  ],
  "rooms": [
    {
      "slug": "compact-bedroom",
      "label": "compact code-minimum bedroom",
      "context": "Code-minimum habitable room — NBC 2016",
      "room_l_m": 3.96,
      "room_w_m": 2.4,
      "source": "National Building Code of India 2016 — habitable room: minimum area 9.5 m2, minimum width 2.4 m",
      "confidence": "medium",
      "notes": "The legal floor, not a typical room. Rented 1RK and studio rooms sit close to it."
    },
    {
      "slug": "10x10-bedroom",
      "label": "10 x 10 ft bedroom",
      "context": "Typical 10 x 10 ft bedroom",
      "room_l_m": 3.05,
      "room_w_m": 3.05,
      "source": "Most Indian residential bedrooms fall between 100 and 150 sq ft",
      "confidence": "medium",
      "notes": "The usual home-gym room in a 1 or 2 BHK — the spare bedroom."
    },
    {
      "slug": "10x12-bedroom",
      "label": "10 x 12 ft bedroom",
      "context": "Larger 10 x 12 ft bedroom",
      "room_l_m": 3.66,
      "room_w_m": 3.05,
      "source": "Most Indian residential bedrooms fall between 100 and 150 sq ft",
      "confidence": "medium",
      "notes": "The upper end of the common bedroom range."
    }
  ]
}