10 popular window designs

Double-hung windows

The double-panel sash window is probably the most-used style today. It has two vertically arranged panels, both of which can be moved all the way up and down.

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Casement windows

The casement window was popular in the United Kingdom before the invention of the sash window, and it is still popular in many European countries. In this design, the operable panel — installed singly or in pairs — hangs on a hinge that lets the window open like a door.

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Awning windows

The awning window is a casement that's mounted vertically, with the hinge at the top so the window pushes out. This style of window is especially useful for allowing air to flow without admitting seasonal debris, such as falling leaves, or rainfall.

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Bay windows

Since their use in castles during the English Renaissance, bay windows have come a long way. Today — in mansions and modest homes alike — bay windows are beloved for allowing maximum light to enter a room, as the sun moves across the sky over the course of a day.

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Bow windows

The bow window depends on a curved architecture and uses more glass panels than a bay window does, to account for the curve. The window pictured is from the Hôtel Otlet in Brussels.

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Jalousie windows

The jalousie window is a distinctly American style, invented by Joseph W. Walker of Massachusetts in 1900. It consists of thin, staggered strips of glass that open and close together like a Venetian blind.

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Palladian windows

The Palladian window is derived from the work of Renaissance architect Andrea Palladio. The Palladian design is usually a large panel embellished by an arched top and two smaller side panels.

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Sliding-sash windows

The sliding-sash window consists of two horizontally mounted sashes that open and close easily by sliding along on a track. Sliders are an excellent choice of window to mount over a counter or sink — anywhere there is an obstacle to access.

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Fixed windows

Fixed windows do not open. They can either be located on exterior walls to admit natural light or set into interior walls — e.g., over a door. These windows come in all shapes and sizes, custom options are also available.

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