This knotty alder entry door is designed around an arch-top 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. The glazing fills the space with natural light without sacrificing the door's solid, substantial feel, and the insulated, tempered glass adds strength, safety, and a quieter interior. It is built around engineered stiles and rails for lasting stability and everyday durability. Order it unfinished to stain or paint yourself, or opt for a factory pre-finished unit that is ready to install the moment it arrives.