cab and chassis truck is a commercial vehicle sold as just the front-end driving unit — including the cab, engine, frame rails, and axles — without a body or upfitted work area, allowing buyers to customize the vehicle with whatever specialized body or equipment best suits their specific application. They serve as the foundation for an enormous range of work vehicles across industries including construction, utilities, municipalities, towing, agriculture, emergency services, and logistics, where purpose-built bodies such as flatbeds, service bodies, crane beds, dump beds, water tanks, and aerial lifts are mounted to create highly specialized trucks tailored to exact operational needs. Their greatest advantage is the flexibility they offer — rather than purchasing a pre-built truck that may only partially meet their requirements, fleet operators and businesses can engineer a vehicle from the ground up to match precise payload, reach, storage, and functional demands while still benefiting from the reliability and warranty of a proven OEM chassis. This combination of commercial-grade mechanical underpinnings and fully customizable body configurations makes cab and chassis trucks one of the most versatile and widely deployed vehicle platforms in the commercial work truck market.