Most chandelier regrets trace back to one number nobody measured. Not style, not budget — diameter. Here is the sizing method we walk every customer through, with the two formulas and one table that settle ninety percent of cases.
The Diameter Formula
Add your room’s length and width in feet. That sum, read as inches, is your target diameter. A 12 × 15 ft living room wants roughly a 27-inch fixture. Over a dining table, ignore the room and size to the table instead: diameter ≈ half to two-thirds of the table width, so a 48-inch round table carries a 24–32 inch chandelier comfortably.
How High to Hang It
| 位置 | Rule |
| Over a dining table | 30–34 in from tabletop to fixture bottom |
| Open room, 8 ft ceiling | Bottom edge ≥ 7 ft from floor — consider semi-flush |
| Open room, 9–10 ft | Chain-hung, bottom edge around 7 ft–7⁄6 |
| Two-story foyer / stairwell | Center the fixture on the second-floor window line |

Three Sizing Cases From Our Order Book
The safe pick: a 24-inch Qatar alabaster ring ($540) over a 42-inch table — formula says 21–28, lands mid-range, never wrong.
The linear exception: over rectangles, switch from diameter to length — a garland-style piece should run about two-thirds of the table. Our linear chandeliers collection is sorted by length for exactly this.
The statement gamble: the Gingko Combination ($12,000) breaks the formula on purpose — commissioned scale for double-height foyers. Rules are for rooms; foyers reward ambition.
Quick Answers
Can a chandelier be too small? Yes, and it is the most common mistake — undersized reads as an accident. When between two sizes, go larger.
Do I need a dimmer? For dining, always. You are lighting food at 7pm and conversation at 10pm; those are different rooms.