28.375 in. x 48 in. 400 series casement wood window with white exterior, right hand help your home stay warm in the winter and help your home stay warm in the winter and cool in the summer with the andersen 400 series casement window, 2838 in. x 48 in. white, with lowe4 insulated glass. the window's durable pine wood frame is treated with a smooth white finish to create a charming, classic.