How to size a chandelier in relation to the room and a table
A good rule of thumb for a dining room chandelier is to be certain the chandelier is at least half the width of the table. It should not be larger than one foot smaller than the table. So, for example, if your table is 48 inches wide, your chandelier should be no larger than 36 inches wide or smaller than 24 inches wide.
What is the recommended wattage for lamps in a chandelier?
For arm chandeliers, 25-watt bulbs are recommended. They provide good light without being too glaring. And even though shades can hide bulbs and filter light, don’t go above 40 watts or you risk burning the shades.
It’s easy to determine the distance from the table to the bottom of a chandelier
For an 8-foot ceiling, the bottom of the chandelier works well at 30 inches above the table. For higher ceilings the chandelier should be raised 3 inches for every foot higher than 8 feet the ceiling is. For example, for a 10-foot ceiling the proper height off the table would be 36 inches.
Some simple guidelines on chandelier placement