Max Jax lift

The columns are listed at 64", the cylinder at full extension is listed at 89" which is just under 7.5 ft. Yes it needs to be mounted to the floor, however when I bought it it came with lags that I can screw into and take out so it can be removed if not using it. You would need the floor side of those lags to put into floor. That makes it nice for storage.
Rod