That's enough room for a 4-post. I have one that is 8'-8" wide no motor, 9'-6" wide with motor. It's about 14'-6" long minus the ramps and a little over 17' long with the ramps. It will lift a whisker over 7'. That's enough I can get a car on the lift and another one under it, and I am 12' to the bottom of my trusses. If you are tight for working room I'd install it so the lift itself is close to the door, requiring the ramps to go outside for entry/exit. Then remove the ramps and close the door with the car on the lift. That would give you about 6' in front of the car. You can move one of these around pretty easy, mine came with a set of wheels. That lets you play with positioning till you find the sweet spot. My space here is about 20' wall to wall, but you can make do with 12'.
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