Originally Posted by cruzinquick
Good info I've been putting off getting one too because of this reason.
Before anyone spends the money though, measure the height or the two cars from the ground to about 2" above the roof line then add another 4" to that ( thickness of the drive ramp). Total that all up and subtract from your ceiling height. My stacker is a Superior 7000. If you buy a four post one, make sure you get the wheel kit for it. This way it is easy to move around or bring outside.