This knotty alder entry door is designed around a full-lite glass design, making a warm, confident first impression at your entry. 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. Inside, engineered stiles and rails give it dependable strength and help it stay true through seasonal changes. Finish it your way with stain or paint, or skip the work and have it pre-finished so it shows up sealed, protected, and ready to hang.