2024 Isuzu NPR HD 4X2 2dr 71.0 in. BBC Tilt Cab 109-212 in. WB Dump Box Dimensions: 2 E Tracks on Each Side Outside of Box: Length: 13 feet Width: 90 inches Height: 55 inches Inside of Box: Length: 155.5 inches (Measuring tape touching back of box to tip of door closure) Width: 84 inches and opens up to 90 inches in some areas (Call to clarify) Height: 51.5 inches (Measuring tape touching bottom to tip of height box)