Hang a staircase chandelier in the open well, not over the treads, with its lowest point 84 inches (7 ft) above the nosing of the tread below it. Center it level with the second-floor line, size the body at a quarter to a third of the well's net height, and use a cascade above 16 ft.
Where does a staircase chandelier hang?
In the well — the shaft of air between the stair's nosing line and the ceiling. Over the treads, three things go wrong: it crowds whoever is climbing, lights the top of a head instead of the tread edge, and loses clearance with every riser.
Center it on the open side of the well, not on the raking line of the flight: the middle of the shaft in a switchback stair, the low end in a narrow straight one.
The second anchor is the second-floor line, about 10 ft above the first floor. Higher and everyone below reads the bottom of the fixture; lower and the second floor stares at the top plate.
How high should a staircase chandelier hang?
Measure from the tread, never from the floor. A staircase is a sloped floor, so "7 ft above the ground" is not a measurement anyone can take; the nosing beneath the fixture is.
- 84 in (7 ft) is the floor of the range, from the fixture's lowest point to that nosing.
- 8 ft on a busy stair, or with anyone over 6 ft 2 in in the house.
- 96-100 in is where you land when the center sits on the second-floor line and the body runs 40 to 48 in.
Every tread the fixture covers costs about 7.5 in of clearance: a lowest point 8 ft 10 in above the first floor clears the second tread by 90 in, the fifth by 67 in, the eighth by 43 in. So most stairwell fixtures end up over the foot of the flight.
How big should the body be?
A stairwell fixture reads right at a quarter to a third of the well's net height, first floor to ceiling. A 24 in pendant in an 18 ft well is the classic American error — a doorknob at the top of a gymnasium.
| Net well height, first floor to ceiling | Fixture body height | Diameter | Form |
|---|---|---|---|
| 9-10 ft, stair only | 12-20 in | 18-24 in | One centered piece |
| 12-14 ft | 20-30 in | 20-26 in | One piece, or two if wide |
| 16-18 ft | 40-60 in | 24-32 in | Cascade down the void |
| 20 ft and up | 60-100 in | 28-40 in | Cascade, or a grouped set |
Diameter has a hard ceiling here too: with 24 in of clear air needed from the railing or wall on each side, a 6 ft well caps the diameter near 24 in whatever the table suggests.
Cascade or one body? The 16-foot line
To about 14 ft, one centered piece is the answer. At 16 ft and above, a single body stops working however large you make it: a 60 in fixture in an 18 ft void still reads as an object suspended in air, lighting one band.
A cascade separates the elements down the drop: the eye reads a column instead of an object, light spreads into three or four bands, and the silhouette stays narrow.
Total drop = ceiling minus the lowest point
Drop is what the fixture and its hardware must span: ceiling height minus the height of the fixture's lowest point above the first floor, canopy, rods or chain and body counted in that number.
- An 18 ft stairwell is 216 in. With the lowest point 8 ft 10 in up (106 in), the drop is 110 in.
- A 20 ft well is 240 in, so a lowest point at 10 ft needs 120 in of drop — it rules out anything topping out below that.
- Body height is not the drop: a 40 in body needs 70 in of chain, rod and canopy above it.
Spec sheets list a minimum and a maximum installed height, and the maximum decides the order here.
Keep 24 inches off the railing
The widest point needs 24 in of air between itself and the railing, banister or wall it passes — for the person leaning over the rail, and for the fixture, which swings when a load goes up on someone's shoulder. Two clearances come off the well width: 24 in of diameter in a 6 ft well, 36 in in a 7 ft one.
Three viewpoints, one fixture
- From the first floor you see the bottom, so an open cascade or a tiered body beats a flat drum shade.
- From the middle of the flight you are level with it, so shield or diffuse the source; bare high-output bulbs hurt head-on.
- From the second floor you see the top of the fixture, the cable routing and the canopy joint.
What it will not do: light the treads
A fixture in the well throws light across the void, not along the rake, and its shadow falls behind the riser — the same reason a bare ceiling can fails over a stair. A turning flight or a stairwell with no window needs wall step lights or a shielded strip under the nosing.
Step lights mount about 60 in above the nosing of the tread they serve, each measured from its own tread, so the group climbs with the flight. On the wall side, the Ravelle Double Sconce Stairwell Wall Sconce, $259, is 10 in wide by 5 in deep by 12 in tall on a 10 by 8 in backplate — a stair wall fixture rather than a void fixture.
Setting the height, in order
- Measure the net well height, first floor to ceiling.
- Find the nosing of the tread directly below the hanging point.
- Set the lowest point 84 in above that nosing, or 8 ft above the first floor, whichever is greater.
- Sit the center on the second-floor line; recheck the lowest point.
- Subtract the lowest point from the ceiling height for the total drop.
- Compare that with the fixture's maximum installed height, rods and canopy included.
- Keep 24 in from the widest point to the railing or wall.
- Past about 50 lb, brace the ceiling box to structure, not drywall.
Products that fit the arithmetic
The one that sizes to the well. The Modern Alabaster Global Staircase Chandelier, $690, sets alabaster globes on a black frame in 3, 5, 7, 9, 16 or 18 light versions, with diameters of 7.9 in at 3 and 5 lights, 11.8 in at 7, 13.8 in at 9, 19.7 in at 16 and 23.6 in at 18 — a width ladder to match to the well. Integrated LED at 3000K, UL certified.
The cascade for a tall void. The Rain Round Modern Chandelier, $1,089, hangs 5 in by 11 in glass drops at about 5 lb each, so its elements spread down the drop instead of stacking into one mass: 18 in with 7 drops, 36 in with 13, 47 in with 21, 60 in with 31. It adjusts from 14 in to 81 in, with the 36 in and 47 in sizes extending to 118 in: in an 18 ft stairwell the lowest point then sits 8 ft 2 in up.
The grand-scale answer. The Mia Smoke Glass Tiered Round Chandelier 62", $8,099, carries a 61.5 in by 25.25 in body from 36 in to 102 in installed; at 334 lb net it wants a braced box and a structural drop.
The wall-side companion. The same Ravelle sconce, up to three times along a flight.
Sources
- ENERGY STAR — Brightness — energystar.gov.
- ENERGY STAR — Light Fixtures — energystar.gov.
- DOE — LED Basics — energy.gov.
- NEMA — Standards — nema.org.
- NFPA 70 (NEC) — nfpa.org.
- UL — Services — ul.com.
FAQ
How high should a staircase chandelier hang?
At least 84 in (7 ft) from its lowest point to the nosing of the tread directly below it, and 8 ft on a stair used all day. Measure to the tread.
Should a chandelier hang over the stairs or in the open well?
In the open well, centered on the open side, with the center level with the second-floor line. Over the treads it crowds the climb and shortens clearance with every riser.
How big should a stairwell chandelier be?
Body height about a quarter to a third of the net well height: 12-20 in in a 9-10 ft stairwell, 40-60 in in a 16-18 ft one, 60-100 in at 20 ft and up. Diameter is capped by 24 in of clear air to the railing.
Does a stairwell chandelier have to be a cascade?
Above 16 ft, yes. One body that tall reads as an object suspended in air and lights a single band; a cascade spreads elements down the drop, so the fixture reads as a column from floor to second floor.
Heights and clearances here follow published design practice and the fixture specifications we publish, not electrical code. Confirm the drop on site, and have hard-wired fixtures installed by a licensed electrician.
