Six Ways To Determine The Opening Direction Of Windows


Right or left? This makes a difference. Learn how to ch […]

Right or left? This makes a difference. Learn how to choose the best home for you.


Casement windows (sometimes called crank windows) provide wide, unobstructed glass windows, which are more energy efficient than other types of windows, and are good at catching breeze and providing fresh air to the house. When choosing to install a casement window, in addition to the overall size and shape, you also need to consider the opening direction of the window. Technically speaking, there is no wrong choice, but when deciding in which direction the casement window should open, several factors must be considered, including better ventilation angles, noise control and easy operation.


The open casement window next to the chair.

A simple way to determine the swing


The direction in which the casement window opens is called processing. Casement windows are marked as FCL (from the left edge) or FCR (from the right edge). If you stand outside looking at the window, the left side of the FCL window is the hinge, and the right side of the FCR window is the hinge. The upper window is the FCR window. This information only applies to casement windows. Inner casement windows do exist, but they are rarely installed.


One bedroom corner casement window.
Window hinge at the corner


If two casement windows are installed in one corner of the room, it is aesthetically pleasing from the perspective of the hinge side of the window closest to the corner.


Three windows, two of which are casement windows on the outside and stationery in the middle.
Hinge outside multiple windows


When two casement windows are installed next to each other, merged with each other (connected) or combined with a fixed (inoperable) window in the middle, the outer hinge is usually seen.


The porch has casement windows.
Catch the cool breeze


The casement windows can catch the cool breeze and guide it into the room. But this only happens when the windows are open to the wind. If a room has only one window, consider installing a casement window to catch the prevailing wind. Of course, the wind does not always blow in the same direction, so a room with multiple windows should have at least one opening in each direction.


A bedroom with three casement windows.
Noise reduction


When choosing a hand with a casement window, the noise is usually ignored. The casement window can not only capture the cool breeze, but also redirect the noisy indoor noise. It may be a good idea to choose windows away from busy streets or noisy neighbors. This is especially important when planning bedroom windows.



Casement windows with tinted or frosted glass can serve as dressing partitions in bathrooms and bedrooms. With proper treatment, casement windows can be opened to enjoy the beautiful backyard view while maintaining the privacy of the street or nearby houses.


A kitchen with four casement windows.
Convenient crank


Most people find it more intuitive to manipulate the window crank with their usual hands. If you consider all the factors listed above, and the window can indeed swing in either direction, then consider the 90% right-handed population. The FCL window with the right hand crank and the left latch may be the best choice... Sorry lefties.


A construction worker sealing a window outside the building.


If you are a builder or window installation contractor, please be sure to inform your customers of their casement window treatment options. If you are the homeowner and are going to pull the trigger when you are in a new house or undertaking a renovation project, please tell the contractor your preference. When everyone is on the same page, the project can always run more smoothly.

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