The Attic-Lift uses two tubular motors synced through the Regulate device to ensure the platform stays amount. Each motors are mounted on steel strut channels anchored with lag screws on your attic's ground joists/rafters. Installing the Auxx-Lift Attic-Lift is a fairly easy Do it yourself task should you be handy. https://garageatticlift00875.life3dblog.com/34272161/the-2-minute-rule-for-auxx-lift-attic