Window Operating Styles

Shamrock Window Operating Styles

The Best Modern and Most Popular Window Operating Styles for Your Home

Window Styles That Create a Modern Feel

Double-hung and casement windows are two of the most common window styles. Casement windows, which are side-hinged and swing outward, are the more modern option.

Casement windows are available in our wood, fiberglass and vinyl product lines. This window style provides open sightlines, allows natural light to shine through and offers ventilation.

Another way to open up a room is to install a bay or bow window that extends from the wall. Bay and bow windows offer exceptional sightlines, increasing the perceived size of the room.

Sliding windows are another great alternative to consider if you’re looking for a fiberglass or vinyl window option that lets in light and ventilation, while still giving your home a modern feel.

Whether you’re installing them in multiples or in combination with other window styles, awning windows can add some extra character to your home while letting in plenty of natural light.

Double Hung

Double-Hung—Top and bottom sash slide up and down within the window frame. With most current window models, the sash not only vertically, but tilt in for cleaning. Single-hung windows look similar, but only the lower sash moves up and down. Other variations of hung windows include cottage windows, which feature a bottom sash that is greater in height than the upper sash. Triple-hung windows, with three sliding sash, are also used in some very large openings

doublehung window operating style
bay and bow window operating styles

Bay And Bow

Bay—Windows that protrude from the exterior wall and consist of a center fixed or picture window and two operable flanking units on either side,
angled back toward the main wall.

Bow—Like bays, bow windows also protrude from the exterior wall. They generally consist of a series of narrow casement or fixed windows combined in a gently-formed arc. An oriel is an older term for a bay or bow window unit that is supported at the bottom by brackets or corbels


Picture windows are stationary, rectangular, non-opening windows that allow light into the room. Browse picture window options for your ideal style and price.

picture window operating style
radius window operating style


In an ‘arch’ or ‘radius‘ window, the bottom half of the window is rectangular while the top is an arch or half-circle. … Arch shaped windows bring a softness to a room and juxtaposes the straight corners of rectangular windows and walls for a contrasting effect.

Single Hung  

 In a singlehung window the bottom panel, or sash, moves vertically, while the upper sash remains stationary. When opened, the bottom sash obstructs, at least partially, the upper sash.

single hung window operating style


Similar to casements, except the sash is hinged to the top of the window frame. Opening out in this manner


Horizontal Slider—Sash slide horizontally within the frame.

Also called sliding windows or gliders, these units may feature one fixed (non-moving) sash and usually one or two sliding sash.

sliding window operating style
garden window operating style


Garden—These windows, generally designed to provide a location to grow plants, protrude from a wall and generally feature a fixed window in the middle with two operable flanking units, typically at a 90° angle to the wall. The top of the window features sloped or curved glass to maximize exposure of sunlight on plants.


Casement—The sash of casement windows are hinged on the side of the window frame and swing out left or right. Most are operated by a crank. Models that don’t use a crank are commonly referred to as push-out casements. A French casement features two push-out sash that are hinged on opposite sides of the same frame.

casemwnt window operating style
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