How to bring the outside into your home. The 25-by-16-foot window wall in the home of Ginni Mulligan was designed to maximize a dramatic backyard view while meeting tight local code regulations. To accomplish dual goals, Sun Design replaced the bulky traditional bulky wooden frame with a steel “moment” frame that covers less of the window surface. Sitting at the dining counter and looking out at nature has become a favorite activity for the Mulligans and guests.