A 20ft multifunctional prefabricated folding house can be a great option for various purposes, including setting up a small container shop for a cafe.  These houses are designed to be compact, portable, and easy to assemble.  Here are a few steps you can follow to create a container shop using a smaller 20ft folding house:

Planning: Determine the layout and design of your container shop.  Consider the necessary equipment, seating area, counter space, storage, and other requirements for a cafe.

Choose a suitable folding house: Look for a 20ft folding house that meets your specifications, such as the one provided by GUIZU Container.  Ensure it has the necessary features, such as insulation, electrical wiring, and plumbing connections.

Site selection: Find a suitable location to place your container shop.  This could be a vacant lot, a park, or other appropriate areas with proper permissions and permits.

Prep the site: Prepare the site by ensuring it is level and clear of any obstacles that could hinder the installation process.

Assembly: Unfold the folding house and follow the manufacturer's instructions for assembly.  Typically, these houses come with pre-installed windows, doors, and basic interior fittings.  However, you may need to customize the interior to fit your cafe requirements.

Electrical and plumbing connections: Once the house is assembled, hire professionals to handle the electrical and plumbing connections.  Ensure they meet safety and building code regulations.

Interior setup: Install the necessary equipment, such as coffee machines, refrigerators, shelving units, and seating arrangements.  Customize the interior to create an appealing and functional cafe space.

Outdoor space: Consider creating an outdoor seating area or a small patio to enhance the cafe experience for customers.

Safety and security: Implement safety measures such as fire extinguishers, security cameras, and proper lighting to ensure the safety of customers and the shop.

Licenses and permits: Obtain the necessary licenses and permits required to operate a cafe in your location.  Verify the local regulations regarding food handling and safety.

Marketing and promotion: Develop a marketing strategy to promote your cafe.  Utilize online platforms, social media, and local advertising to attract customers.

Remember to consult local authorities and professionals for guidance specific to your area and project.