Chandelier sizing and hanging heights

At a glance

Millimetres, heights from the finished floor unless stated. These are design conventions from published guides, not standards; the only regulated figure is the 2,000 mm headroom. A lighting designer sets the final figures.

Read this first: conventions, not standards

No British Standard sets the size or the hanging height of a chandelier. What exists is a body of rules of thumb in lighting guides, mostly in inches and feet, and they disagree in places: one guide gives both 28 and 30 inches as the minimum height above a table, and another gives 6 ft 8 in and 7 ft as the clearance over a walkway. This sheet collects the common rules in millimetres, says what each is based on, shows where it breaks, and keeps separate the one place where numbers are regulated: head clearance over stairs and escape routes.

• Every height and size here, except the headroom in Approved Document K, is a design convention, not a standard and not a guarantee.
• A lighting designer sets the final figures for your room, and a structural engineer designs the fixing. This sheet gives no weights.
• Pair heights with the furniture. Table tops and seat heights are in our Table heights guide.

Words are used differently by different suppliers, so the sheet fixes its own: C is the finished ceiling height; D, the drop, is the distance from the finished ceiling to the lowest point of the fitting; B is the body, the height of the fitting without its canopy, chain or rod; and S, the suspension, is what is left: canopy plus chain or rod, so that S = D minus B. Our Specifying Murano glass lighting factsheet (TL-LIG-01) uses the same drop.

Sizing: three methods and where each fails

Three methods are in common use. They start from different things, so for the same room they can give different answers. Use the table-based rule over a table, judge the room separately, and treat the ceiling rule as a check on proportion rather than a size.

Diameter by table width

The table-based rule worked through for common table widths. The clearance column is how much table is left visible on each side: it is the width minus the diameter, divided by two.

For a rectangular table, the diameter is set against the table's width, not its length. A fitting that is right across a 1,200 mm table can look small along a 2,400 mm one, which is why guides move to several smaller fittings in a line on long tables. The lighting designer sets the number and the spacing.

Hanging height: from the surface, not the ceiling

Hang a fitting from the surface it serves, not from the ceiling. Over a table, set the lowest point from the table top; over a bed, from the mattress; over circulation, from the floor. The ceiling then decides how much chain or rod is left over, which is the next section.

The table-top figure of 750 to 900 mm is the one the guides most nearly agree on. Everywhere else they differ by 50 to 150 mm, which is within the range a lighting designer would adjust on site anyway. Provide adjustment in the chain or rod, and confirm the height on a mock-up.

Head clearance: the part that is regulated

The one place where a figure is regulated is headroom over stairs and escape routes. In England, Approved Document K (2013 edition) says:

• Stairs, all buildings (paragraph 1.11, Diagram 1.3): a minimum headroom of 2 m, measured from the pitch line of the flight and from the landing.
• Means of escape routes in buildings other than dwellings (paragraph 1.12): a minimum clear headroom of 2 m, except in doorways.

The document does not mention hung light fittings, so how the headroom is measured around a fitting is for the building control body to confirm. A design clearance above 2 m is usual, and a fitting that hangs over a stair or a walkway is worth raising with building control early. We read Approved Document M, Volume 2 (2015 edition incorporating 2024 amendments) and found no headroom figure for hung fittings. Scotland, Wales and Northern Ireland have their own documents, which we have not read.

From heights to suspension length

Once the height is chosen, the arithmetic is exact. The lowest point is the ceiling height minus the drop, so the drop is the ceiling height minus the height you want the lowest point at, and the suspension is the drop minus the body.

• Lowest point above the floor = table top + clear height above it (over a table), or the chosen clearance (over circulation).
• D = C minus the lowest point above the floor.
• S = D minus B. If S is negative the fitting does not fit; use a shorter body or a semi-flush fitting.

Worked example for the drawing: C 2,700, table top 750, clear height above it 800, so the lowest point is 1,550 above the floor. D = 2,700 minus 1,550 = 1,150. With a body of 600, S = 1,150 minus 600 = 550. These are example figures, not recommendations.

The same body at four ceiling heights

The same body of 600 mm at different ceiling heights, in millimetres. Over a dining table the lowest point is 1,550 above the floor; over circulation it is 2,100 mm. At a 2,400 mm ceiling over circulation there is no room for a chandelier of this height, which is the practical reason low ceilings call for flush or semi-flush fittings.

Where the rules break

• Long tables: one large fitting does not suit a table much longer than it is wide. Guides move to two or more smaller fittings in a line; the lighting designer sets the number and spacing.
• Low ceilings: over circulation the rules leave no room below about 2.7 m for a tall body (see the table above). Use flush or semi-flush fittings.
• Bars and restaurants: sightlines between standing guests, seated guests and staff, and glare onto faces, matter more than any table rule. We found no convention for bars. Mock up at full size.
• Stair and double-height voids: scale by the volume and the sightlines from each landing, not by the ceiling rule, and have the structural engineer design the fixing. Lowering gear and access need planning.
• Repeated fittings: spacing is set by the light level you need and the look you want. The guides give no rule we would rely on.
• Heavy glass: weight does not follow diameter alone. For a Murano glass fitting, the workshop declares the weight and a structural engineer designs the fixing.

The cheapest test of any figure is a full-size template: a ring of card or light fabric at the drawn diameter, hung at the drawn height, looked at from the seats, the doorway and the stair.

Overall diameter [700] mm. Body height [600] mm. Suspension (canopy and chain or rod) [550] mm, adjustable on site by [ ] mm. Drop [1,150] mm from finished ceiling level to the lowest point. Finished ceiling level [2,700] mm and finished floor level shown on the same elevation. Lowest point [1,550] mm above finished floor level. Definitions of diameter, body, suspension and drop to be stated on the drawing.

Lowest point of the fitting [800] mm above the finished table top (range [750 to 900] mm); table top [750] mm above finished floor level. Fitting centred on the table [in both directions]. Diameter not more than [two-thirds] of the table width. Height to be confirmed on site against a full-size template before the chain or rod is cut or fixed.

Lowest point not lower than [2,100] mm above finished floor level over circulation, and not lower than [ ] mm above the pitch line over a stair, as set by the lighting designer and confirmed with the building control body. The minimum clear headroom required by building control (not less than 2,000 mm under Approved Document K in England) is not to be reduced.

Chain or rod supplied [over-length / adjustable by [ ] mm] so that the lowest point can be set after floor and table levels are final. Final length to be set on site by [installer] and recorded on the as-built drawing. The structural engineer's fixing is not to be altered to achieve a height.

Standards and sources

• Approved Document K, 2013 edition (England): Read 5 Nov 2026: paragraphs 1.11 and 1.12, Diagram 1.3 (2 m headroom).
• Approved Document M, Volume 2, 2015 edition incl. 2024 amendments (England): Checked: no headroom figure for hung fittings.
• British Standards: No British Standard for chandelier size or hanging height was identified.
• Published lighting guides (UK and US retail): Source of the conventions, read 5 Nov 2026. Not authorities.
• Make Bespoke Studio journal: Table heights: table tops and seat heights.

Questions we are asked

How big should a chandelier be over a dining table?

The common convention is a diameter of half to two-thirds of the table's width, so 600 to 800 mm over a table 1,200 mm wide. It is a rule of thumb, not a standard, and a lighting designer sets the final size.

How high should a chandelier hang above a dining table?

Commonly 750 to 900 mm from the table top to the lowest point of the fitting. Lower feels more intimate and higher keeps sightlines clear. Confirm it against a full-size template on site.

How do I work out the length of chain or rod?

The drop is the ceiling height minus the height you want the lowest point at above the floor, and the suspension is the drop minus the height of the body. With a 2,700 mm ceiling, a 750 mm table, 800 mm clear above it and a 600 mm body, the suspension is 550 mm.

How low can a chandelier hang over stairs or a walkway?

In England, Approved Document K (2013 edition) requires at least 2,000 mm of clear headroom on stairs, measured from the pitch line, and on means of escape in buildings other than dwellings, except in doorways. Design clearances over circulation are usually higher, from about 2,100 mm. Building control decides how this applies to a hung fitting.

Is there a British Standard for chandelier size?

None that we could identify. The sizes and heights quoted by lighting guides are conventions, and they disagree in places. Treat them as a starting point for the lighting designer.