Wood is the most customizable window material, making it a great option for many window types of various shapes, styles, and sizes. At Pella, you can choose from pine, douglas fir, mahogany, white and ...

Wind resistance measures each window"s ability to keep out drafts with 25 and 50 mph winds an an outdoor temperatures of 70º F. The Pella 150 Series is part of the Replacement Windows test ...