Alpine's special shape windows are designed to add elegance and charm to you home, as well as that special designer's touch. With more choices than ever before, each different shape in the collection is as exceptional as your home is to you. Our special shapes whether half-round or octagonal, add an attractive air and a distinct quality of light to any room. Backed by Alpine's performance guarantee, our windows deliver weather-resistant views and decorative comfort to ensure the performance and endurance that you desire - in a subtle but beautiful way. See your Alpine representative for a full list of special shape options.