Our Drywall Lift is made from an all welded steel construction, tool-free assembly and teardown, single stage winch with brake, and can be used by one person. It has a 11' maximum reach for horizontal ceilings, and  when you add a extension bar , it will get 15' maximum reach for walls. It can hold a 4' x 16' single sheet capacity, with a 150 lbs load rating, has 3 casters(with or without break),11’ Maximum Reach for horizontal ceilings (Angled ceilings will have a higher working peak heights, the added heights will vary with pitch) & 15 Maximum Reach for walls.