Convertible hand trucks are similar to regular hand trucks, but with an extra set of wheels that fold out behind the main frame quickly and easily to create a four-wheel hand truck. Convertible hand trucks allow a single worker to move heavier loads safely, typically between 500 and 1500 pounds. They’re great for moving a variety of heavy items with fewer trips and reducing repetitive lifting, thereby lowering the risk of physical injury. Choose a straight-back or curved-back frame depending on the types of loads you need it for: straight-back frames are good for boxes, while curved-back frames are a better choice for cylinders, barrels, kegs, and other rounded shapes. Check out California Caster’s complete line of convertible hand trucks online, or give us a call anytime for fast, friendly service.