Heavy-Duty Capacity for Versatile Use: Built to handle demanding tasks, this stair climber hand truck supports up to 550 lbs on flat surfaces and 440 lbs when climbing stairs. Whether you're transporting appliances, furniture, or heavy boxes, it's a reliable companion for delivery drivers, warehouse workers, builders, and farmers. Rugged & Lightweight Aluminum Frame: Constructed from high-strength aluminum, this hand truck offers the perfect balance of durability and portability. It resists rust and corrosion while remaining easy to maneuver, making it ideal for both indoor and outdoor use in commercial or residential environments.