A vaulted living room, a mezzanine, a two-storey stairwell: once the ceiling goes above 3.50 m, the usual chandelier rules stop working. A “standard” model gets lost in the space, and a badly hung chandelier ends up either hugging the ceiling or at your guests' eye level. There are, however, simple guidelines for choosing the size, the hanging height and the fixing. Here they are, with the calculations.
Key points
- Diameter: (room length + width in m) × 8 = diameter in cm. In a double-height space, you can go 10 to 20% larger.
- Height of the chandelier itself: 20 to 25 cm per metre of ceiling height. For 6 m, a fitting 1.20 to 1.50 m tall.
- Bottom of the chandelier: roughly level with the mezzanine or upper floor (2.50 to 2.80 m), never below 2.30 m in a walkway.
- Cable length = ceiling height − height of the chandelier's bottom − height of the fitting.
- Fixing: into the roof structure or a joist, not into panelling or plasterboard alone. Check the weight.
What changes above 3.50 m
In a standard room, a chandelier is positioned relative to the floor: 2.10 m clearance for walking, 75 to 90 cm above a table. In a large space, you also have to position it relative to the empty volume above. Three things change:
- Scale: a 60 cm chandelier, perfect in a living room with a 2.50 m ceiling, looks like a pendant under a 6 m ceiling.
- Viewpoints: you see the chandelier from below, but also face-on from a mezzanine, and sometimes from outside through a large window.
- Light: the higher the source, the less light reaches the floor. A chandelier alone is rarely enough.
What size chandelier for a large space?
Start from the same rule as a standard living room, then add a second dimension: the height of the fitting.
Diameter (cm) ≈ (length + width in m) × 8. For an 8 × 5 m living room: 13 × 8 = 104 cm. In a double-height space, you can go up to 115–125 cm, especially with an airy design (rings, wires, clear glass).
Fitting height ≈ 20 to 25 cm per metre of ceiling height. This is the metric equivalent of the rule of thumb of 2.5 to 3 inches per foot.
| Ceiling height | Fitting height | Type of chandelier that works |
|---|---|---|
| 3.50 m | 70 to 90 cm | Two-tier chandelier, large pendant |
| 4.50 m | 90 cm to 1.10 m | Tiered chandelier, stacked rings |
| 5 m | 1 m to 1.25 m | Tiered chandelier, cluster of pendants |
| 6 m | 1.20 to 1.50 m | Cascade, large multi-level chandelier |
| 7 m and above | 1.40 to 1.75 m | Stairwell cascade, arrangement of several fittings |
Don't take these figures to the centimetre. A chandelier slightly smaller than the rule works better than one that is visually too heavy, especially in dark metal or dense crystal.
How high should the chandelier hang?
The right reference point isn't the ceiling, it's the upper floor line. In a living room with a mezzanine, the bottom of the chandelier is usually placed roughly level with the mezzanine floor, i.e. 2.50 to 2.80 m from the ground. The result: the chandelier fills the space, you see it face-on from upstairs, and it stays well clear of people walking underneath.
Other guidelines depending on the room:
- In front of a large window: centre the chandelier on the window and line its middle up with the top or middle of the glazing. In the evening, that's what you see from the street.
- Above a table: the 75 to 90 cm above the tabletop rule still applies, even under 6 m. You just need a long cable.
- In a walkway: never less than 2.30 m between the floor and the bottom of the chandelier. In a large space, a low chandelier looks even lower.
Working out the cable length
The formula fits on one line:
Cable length = ceiling height − desired height of the chandelier's bottom − height of the fitting.
Example: 6 m ceiling, chandelier bottom at 2.60 m, fitting 1.30 m tall. 6 − 2.60 − 1.30 = 2.10 m of cable.
Check the supplied cable length on the product page before ordering. Many chandeliers come with 1 to 1.50 m of adjustable cable. Beyond that, the cable needs replacing with a longer one, which an electrician can do in a few minutes. The electrical flex must not carry the weight: on a heavy chandelier, it's the steel cable or chain that takes the load.
Stairwells
In a stairwell, the chandelier goes in the centre of the void, where it doesn't get in the way of any flight of stairs. Two approaches work:
- The cascade: several pendants or globes at different heights, spread over the full height of the stairwell. It lights every landing.
- A single long chandelier: centred in the void, with its bottom roughly level with the first-floor landing.
The bottom of the chandelier must stay more than 2 m above any step beneath it. Add wall lights 1.80–2 m above the steps, as explained in our wall light height guide.
Vaulted and sloping ceilings: fixing
A sloping ceiling raises two issues: the fitting has to hang vertically, and the fixing has to hold in a surface that isn't horizontal.
- Hanging straight: choose a model with an adjustable canopy or a swivel joint for sloped ceilings. Without one, the cable comes out at an angle and the chandelier tilts.
- Holding firm: fix into the roof structure (rafter, purlin, joist) or into a noggin added between two rafters. Panelling or plasterboard alone is not enough for a chandelier weighing more than a few kilos.
- Weight: large chandeliers often weigh 8 to 25 kg, sometimes more in crystal. The weight is shown on the product page. Use a ceiling fixing rated for the load, and make sure it is itself securely fixed.
In an insulated sloping ceiling, take care not to crush the insulation and keep the cable entry airtight. This is a job for an electrician, ideally planned before the ceiling is finished.
Enough light at floor level: lumens and layered lighting
The higher a light source, the less it lights the floor. In a 6 m space, allow 20 to 30% more lumens than for a normal room, i.e. 120 to 200 lm per m² of floor, all sources combined.
The chandelier shouldn't have to do everything. A large space is lit in three layers:
- The chandelier for atmosphere and visual presence;
- Wall lights at 2 to 2.20 m on the large walls, to light at head height;
- Lamps (floor lamp, table lamp) for reading and the evening.
Keep the same colour temperature throughout, 2,700 to 3,000 K, and put the chandelier on a dimmer.
Changing a bulb 6 m up
It's the question people forget when buying. Three options:
- Integrated LEDs or long-life bulbs: 25,000 hours or more, around fifteen years at four hours a day. The simplest choice.
- A chandelier hoist (manual or motorised) installed in the ceiling: it lowers the chandelier to head height. Essential for very large crystal chandeliers that need regular cleaning.
- Access from the mezzanine: if the chandelier is close to the balustrade, you can reach it with a pole. Mind your safety.
For dust, smooth materials (metal, clear glass, paper) are much easier to look after than crystal drops.
Three typical set-ups
| Room | Dimensions | Our recommendation |
|---|---|---|
| Vaulted living room | 8 × 5 m, 5 m to the ridge | Chandelier 100 to 120 cm in diameter and 1 to 1.25 m tall, bottom at around 2.60 m, swivel joint for the slope |
| Loft with mezzanine | 7 × 6 m, 6 m ceiling | Tiered or ring chandelier 1.20 to 1.50 m tall, bottom level with the mezzanine, wall lights at 2 m |
| Stairwell | 2 × 2 m void over 7 m | Cascade of pendants spread over the height, or a long centred chandelier, bottom more than 2 m above the steps |
Frequently asked questions
Which chandelier for a 5 m ceiling?
A chandelier around 1 to 1.25 m tall, tiered or clustered, with a diameter based on the room: (length + width in m) × 8 cm. Hang it so its bottom is at around 2.50 to 2.80 m from the floor.
How high should a chandelier hang in a double-height room?
The bottom of the chandelier usually sits level with the upper floor or mezzanine, between 2.50 and 2.80 m from the ground. Above a table, keep it 75–90 cm above the top.
How do you fix a chandelier to a sloping ceiling?
With an adjustable canopy or swivel joint so the cable hangs straight, and a fixing into the roof structure (rafter or added noggin), never into panelling alone.
What cable length for a chandelier in a high space?
Ceiling height minus the desired height of the chandelier's bottom, minus the height of the fitting. Under 6 m, with the bottom at 2.60 m and a 1.30 m chandelier, you need 2.10 m of cable.
Is one chandelier enough to light a vaulted room?
Rarely. It sets the mood, but the light is weaker by the time it reaches the floor. Add wall lights at around 2 m and supplementary lamps.
See also: our stairwell and duplex lighting, our pendant chandeliers and how to choose a living room chandelier.
