A sectional garage door is a model that is made of four or more horizontal sections that are hinged together and mounted with rollers on tracks on each side, enabling it to roll straight up and back. Sectional garage door models are generally favored over tilt-up models because of their easy operation, they allow more headroom, and can be opened even with a car parked right in front of them. A sectional garage door is also more secure and weather tight than the tilt-up models, but tend to cost a little more. Start with Garage Door Central for a great price on a sectional garage door.