Decor Innovation Designs. A rule of thumb for crystal chandeliers: If your dining room is eight feet tall, hang the chandelier 30 to 34 inches above the table. If the ceiling is more than eight feet high, shorten that chandelier chain by an additional three inches.n an eight-foot-high dining room, most chandeliers will hang about 30 inches above the dining room table. If you need help on chosen the right size of chandelier for the size of table you have, let me know and i will help you.. Hope this helps you out..