U-Boat platform trucks are perfect for stocking or picking stock on aisles that are narrow or too tight of a fit for a standard width platform truck. Only 16 in. wide. Truck has a capacity of 1800 Lbs. Center wheels are 8" x 2" and made of polyurethane. End wheels are 4" x 1 1/4" and constructed of durable rubber. FOB shipping.