Strip drains and flat drains are prefabricated drains that consist of a high-profile, perforated, three-dimensional core that is fully wrapped with a filter fabric. The filter fabric is securely bonded to prevent soil intrusion into the core flow channel while allowing water to freely enter the drainage channel. Strip drains function as a direct replacement for perforated pipe and stone drainage systems. The high water collection and flow capacity allow strip drains to be used alone or as the transportation system for sheet drains. Typical applications are basement footers, lawns and yards, golf courses, athletic fields, and edge and curb drains.