ok, so maybe this is a stoopid question, but I'll risk it. In the squat videos I've watched online, the squat racks just look like two vertical poles with hooks all the way down on either side for the bar to rest on at a selected height. Sort of like what the Smith machine looks like at my gym. what I've been using for squats at my gym, the poles with the hooks come off at a slight angle from two other vertical poles and go down to about hip height, where there are two horizontal flat bars that run parallel to the floor and extend out 2-3 feet. Is that a squat rack also? Is it different from what most other people use? Is there some purpose for the horizontal bars (other than people leaving the fully loaded barbell there for me to have to re-rack all of their weights before I can get started)? Let the mocking begin!
