Amazon.com: Platform Truck Cart, Foldable Push Cart Dolly w/Five 360° Swivel 6'' Wheels, 1600LBS Capacity Heavy Duty Moving Platform Trucks Hand Cart for Groceries, Garage, Warehouse (43" L x25 W) : Industrial
Magliner 2,800 lb. Capacity 30 in. x 60 in. Tread Deck Aluminum Platform Truck w/ One Handle, 8 in. Thermoplastic Rubber Wheels PTK3060T1-Q - The Home Depot
Heavy-Duty Plastic Platform Trucks (PPT) - Product Family Page