i heard there's a kind of opener that can be installed at side of your garage beside the track, it turns the axis instead of pulling up the door. it saves spaces over head of your garage ceiling. only thing, normally builder will only have electrical outlet where the traditional opener would be, not at the side of the door.
see this one, it's called Residential Jackshaft Garage Door Opener
Amazon.com: LiftMaster 3800 Residential Jackshaft Garage Door Opener: Home Improvement
i wish i had known this before i put in my garage openers. the ceiling of your garage will be much more clean without those traditional openers.