The two most popular garage entry doors are the overhead sectional and tilt-up doors. The overhead sectional door is a motor-driven door that moves horizontally along tracks mounted on the ceiling of your garage. It's a good choice if you have limited headroom or want to avoid having a threshold at the entrance to your garage. The tilt-up door is a one-piece door that tilts up and out to open. It's a good choice if you have plenty of headroom and want to save money on installation because no track is required.