Choosing the right curtain length can make or break a room. Professional designers follow one hard and fast rule in order to achieve the perfect dimensions, says Kati Curtis of Kati Curtis Design.

A home with lots of natural light is wonderful, but if you find yourself overheating in a midday sunbeam or making extended eye contact with your next-door neighbor, it might be time to buy curtains.

Standard curtains come in three lengths, but experts say you should opt for longer rather than shorter. Choosing the right curtain length can transform how your room feels, making it look taller, ...