SLIDING WINDOWS from Pella® of Saint Louis From elegant curves to contemporary angles, Pella Windows and Doors Special Shape windows offer seemingly endless design possibilities and help you achieve a custom look at a competitive rate. Special shape windows are sold in curves and angles to strengthen the architectural interest and strengthen the natural light in your home. Our windows help you combine different shapes, sizes and styles to form a stunning focal point. Special shape windows can be paired with grille types that match your other Pella windows so you’ll have a quality, consistentlook throughout your home. Made in multiple sizes, these factory-assembled window combinations will leave you witha custom look using standard windows. If you don’t see the shape you would like, please see more about Custom Windows. Pella Windows and Doors can make virtually any window shape or size you need.Schedule an in-home consultation or visit the showroom in Saint Louis to learn more. Schedule Now!