Remodel Guide: Custom Window Types

Round-top and other geometrically-shaped windows are used as architectural accents.
Bow window is made from several windows positioned side-by-side to create an arcing form. Similar to a bay window, it provides drama in a room.
A seamless bent-glass corner window is a fairly new product that offers unobstructed views at the corner of a house.
The bay window, made from a central sash and two angled side sashes, is a classic favorite for expanding a room with light, views and drama. Angled side windows are often operable casements or double-hung windows.
Glass block is a light-allowing alternative to conventional windows, used both in exterior and interior walls. Various patterns allow varying degrees of view or privacy. Typical sizes are 6, 8 and 12-inch squares and 4 by 8 and 6 by 8 rectangles made for 4-inch-thick walls.