Buyers Products 24x24x24 Inch White Steel Underbody Truck Box Model 1704400 Gasoline 6 cu ft 2020 2024 GMC Color:Textured Gray 6 cu ft 2020 2024 GMC Sierra 2500 HD 87 in Full Yes Weather Seal Yes Chevrolet Silverado 1500 Yes Chevrolet Silverado 2500 3500 Yes Ford F 150 Yes Ford F 250 F 350 Yes GMC Sierra 1500 Yes GMC Sierra 2500 3500 Yes Nissan Titan Yes RAM 1500 Yes Toyota Tundra Yes RAM 2500 3500 Yes Bed Length 5 ft 6 in Yes Bed Length 5 ft 7 in Yes Bed Length 5 ft 8 in Yes Bed Length 6 ft Yes Bed Length 6 ft 1 in Yes Bed Length 6 ft 2 in Yes Bed Length 6 ft 4 in Yes Bed Length 6 ft 5 in Yes Bed Length 6 ft 6 in Yes Bed Length 6 ft 7 in Yes Bed Length 8 ft Yes For that reason each professional grade box is made of strong 14 Ga steel with a 12 Ga drop door that can handle the harshest job sites