How high should I hang a wall sconce?
Generally, sconces should be placed on a wall 60" from the floor.
What guidelines should I follow in choosing a chandelier for a foyer or other room?
Add the room dimensions together. If the room is 14' by 16', add 14 + 16. The answer is 30, which means that your chandelier should be approximately 30" in diameter. Again, remember that other factors such as the height of the ceiling may influence the proper size.
How do I know the correct size of a chandelier for a dining table?
A general guideline is to choose a chandelier that has a diameter equal to one-half the width of the table. The general appearance of the chandelier must be taken into account, too; that is, if it is a light airy piece it may be slightly larger than the standard.