A lift gate is a mechanical device attached to the back of a truck or trailer that helps load and unload heavy items. It operates like a small elevator, lowering to the ground to create a ramp for easy access. This feature is especially useful for transporting large or bulky goods, making deliveries more efficient. Lift gates come in various types, including hydraulic and electric models, each designed to handle different weight capacities. They are commonly used in the logistics and transportation industry, allowing for safer and more convenient handling of cargo without the need for additional equipment.