Larger travel trailers are made with the seasonal or full-time user in mind. These generally range from long and contain all the comforts of a luxury condominium. These amenity-laden models can reach or more, requiring a purpose-built tow vehicle, highway tractor or large truck or SUV. While trailers may weigh in even above that, most long-bed pickups have a maximum tow-weight of . Multiple televisions and air conditioners are common in units of this size. Slide-out rooms and screen porches add to livability. By law, travel trailers are limited to of living area, and many models offer exactly that plus any optional slide-outs.