The Auxx-Lift could be mounted on any ceiling (rafters/joists/sloped ceiling) THIS Package IS OPTIONAL: Typically the lift's motors operate parallel to the ceiling joists. If you want the motors to operate perpendicular in your joists you'll need this package. This additional package will change the platform 90 Levels Your entire https://auxx-lift53197.mywikiparty.com/1530786/not_known_facts_about_auxx_lift