Wood Windows and Patio Doors – Wood interiors offer more design flexibility — windows and patio doors can be stained or painted to match your decor. Explore the interior and exterior finish options available for Pella's wood products.As part of Pella Corporation’s commitment to environmentally-friendly practices, we use Water-Based Green Chemistry. Our factory-applied stain is water-based, which significantly decreases the amount of volatile organic compounds (VOCs) emitted into the air.Fiberglass Windows and Patio Doors – Available in colors offering the quality look of painted wood — including a dual-color option. Explore the interior and exterior finish options available for Pella's fiberglass products.Vinyl Windows and Patio Doors – Pella's unique vinyl formula is performance-tested for excellent weathering, durability, and color retention. Solid- and Dual-Color frames are available. Explore the interior and exterior finish options available for Pella's vinyl products.Fiberglass and Steel Entry Doors – You'll save time and finishing costs when your entry door arrives prefinished in your choice of paint or stain color that will look beautiful for years. Explore interior and exterior finish options for Pella's fiberglass and steel entry doors.