What size chandelier should I choose? Diameter, height, and hanging rules

A magnificent light fixture can seem disappointing once installed, simply because it is too small for the room or hung too high. Before choosing a model, you must therefore answer a very concrete question: what size chandelier for which room? Diameter, total height, suspension height above a table or in a stairwell: here are the sizing rules used by decorators, with the figures to remember.

Calculate the ideal chandelier diameter in one step

The simplest method consists of adding the length and width of the room in meters, then multiplying the result by 10: you get the recommended diameter for the light fixture in centimeters. A living room of 5 m by 4 m gives 5 + 4 = 9, meaning a chandelier of approximately 90 cm in diameter. A bedroom of 4 m by 3 m calls for a 70 cm model instead.

This rule provides a basis, not an obligation. If the ceiling is high or the room is very open, you can go 10 to 20% above the result without risk: it is almost always under-sizing, never the opposite, that gives the impression of a light fixture being "lost" in the middle of the ceiling. Conversely, in a densely furnished room, stick to the calculated figure.

At what height should a chandelier be hung above a table?

Above a dining table, the rule is constant regardless of the ceiling height: the bottom of the fixture should be between 70 and 85 cm from the tabletop. Below 70 cm, the suspension obstructs the view between guests; above 85 cm, the light disperses and the table loses its "convivial bubble" effect.

Regarding width, aim for a fixture that covers half to two-thirds of the table width, centered over the tabletop and not the room — this is a frequent error when the table is not in the middle of the living room. For a rectangular table over 1.80 m, a linear suspension or two identical aligned fixtures provide better lighting than a single round chandelier.

2.50 m or 3 m ceiling or stairwell

In a hallway or passage, the bottom of the fixture must remain at least 2.10 m from the floor so that one can walk underneath without thinking about it. With a standard 2.50 m ceiling, this leaves about 40 cm for the total height: favor a flush mount or a semi-flush model rather than a chandelier with a long stem.

Beyond that, allow 7 to 8 cm of fixture height per 30 cm increment of ceiling height. A 3 m ceiling can therefore accommodate a chandelier of about 70 to 80 cm in height, a 3.50 m ceiling a model of 85 to 95 cm. In a stairwell or double-height space, the low point is determined differently: it must be visible from the floor above as well as from the ground floor, generally level with the landing or just below, and never less than 2.20 m from the first step.

Kitchen island, entryway, hallway: special cases

Above an island, stick to 75 to 90 cm from the countertop, with one or more suspensions whose combined width does not exceed two-thirds of the island. In an entryway, it is better to have a compact, bright model than a large chandelier that overwhelms the space as soon as you step through the door. In a hallway, a series of regularly spaced wall sconces creates a more elegant path than a single central ceiling light.

The most frequent sizing errors

Three errors occur systematically. The first: choosing based on a catalog photo without looking at the stated diameter — the same model often exists in 40, 60, and 80 cm versions. The second: forgetting the total height once the stem or chain is deployed, which is what determines whether or not you will bump into it. The third: centering the fixture on the room when the true point of reference is the furniture it illuminates, whether it be a table or an island.

The template method, before ordering

Cut out a circle of kraft paper at the intended diameter and tape it to the ceiling, then hang a string at the planned suspension height with a light object at the end. In ten minutes, you can see the actual bulk, check the clearance, and decide between two diameters much more reliably than by looking at a product sheet. Also note the available height under the ceiling and the diameter of the existing canopy before ordering.

Find the right format in our catalog

Each product sheet indicates the exact diameter and height, which allows you to compare directly with your measurements. For a large volume, explore our exceptional blown glass chandeliers or a generous model like this large white opaline glass chandelier. For a table, look into our glass disc chandeliers or this linear frosted glass suspension. For a bedroom or entryway, all of our chandeliers and wall sconces cover the more compact formats.