A square tensile membrane design scheme typically refers to a plan for constructing a tensile membrane structure with a square footprint. These structures are known for their innovative and lightweight design, often used in public spaces, events, and architectural projects. They are made from materials such as ETFE (Ethylene Tetrafluoroethylene), which is a durable and weather-resistant plastic. The design process involves considerations for structural integrity, tension, shape, and aesthetic integration with the surrounding environment.