Casement windows are hinged on the side and open outward to the left or right, allowing you to catch breezes and direct the flow of fresh air into your home. Usually taller than they are wide, their entire sash opens to provide top-to-bottom ventilation. This also makes them a frequent choice for use as egress windows—ones that can be used as an emergency exit.

Andersen® 400 Series casement windows start with a design that is extremely energy efficient. Add to that a solid-wood sash covered inside and out by low maintenance Perma-Shield® cladding to protect against water damage. Then give them rich, natural pine interiors that create a perfect frame for art glass or grille patterns. It’s easy to see why they have become our best-selling casement window of all time.