What type of design does a folding camper utilize?

A folding camper predominantly employs a pop-up design, which is characterized by its ability to compact down for ease of transport and then expand or "pop up" when set up at a campsite. This design typically includes a frame and canvas that allow the camper to be lightweight and easy to maneuver while still providing adequate living space once deployed. The pop-up feature is essential for maximizing both storage efficiency when traveling and livable space upon arrival, making it a popular choice among recreational vehicle enthusiasts who value portability and convenience.

In contrast, the other design options mentioned don't align with the typical characteristics of a folding camper. A solid frame design usually denotes a more rigid structure that does not incorporate the flexible materials found in pop-up campers. Modular design refers to components that can be rearranged or replaced, while expandable slide-out design typically pertains to larger, more stationary RVs that extend living areas through additional sections rather than folding as in pop-up campers.