This knotty alder entry door is designed around a three-quarter lite glass design, setting a welcoming tone the moment guests arrive. The door is built from knotty alder, a warm, characterful wood whose natural knots give every door a one-of-a-kind, rustic personality. Daylight pours through the glass to brighten the room and make the entry feel larger and more welcoming, and the insulated, tempered glass adds strength, safety, and a quieter interior. Inside, engineered stiles and rails give it dependable strength and help it stay true through seasonal changes. Available unfinished and ready for your own stain or paint, or choose a pre-finished door that arrives ready to install.