Pella Corporation. Pre-finished wood entry doors feature a factory-applied stained finish covering the door’s interior and exterior. The pre-finishing eliminates on-the-job staining and finishing, and also ensures a consistent look to both sides of the door. Six new stain colors are available for mahogany, rustic walnut, Demense cherry, and white oak wood doors. 800.374.4758. www.pella.com.