Chassis cab

2011 Ram 3500 chassis cab

A chassis cab or cab chassis is a body style, and type of vehicle construction, often found in medium duty truck commercial vehicles.

Instead of supplying the customer with a factory pre-assembled flatbed, cargo container, or other equipment - the customer is given the vehicle with just 'chassis' rails and a 'cab'. This allows the customer to assemble any desired aftermarket equipment -- for instance, fire apparatus, an ambulance, towing equipment or a recreational vehicle conversion package -- which can be customized for the specific needs of the customer.

Aftermarket equippers, including coachbuilders, often make their own packages that can be ordered for the truck.