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When it comes to windows for our homes, we want something stylish. Something that suits the look and feel of each room, as well as bring in natural light. However, the right windows can and should do so much more for a home. Being energy efficient and providing crucial safety features, such as an escape route in case of a fire, are but two examples.

We would love to be able to pick out any window for any room in our house. But, there are some structural factors that need to be considered first. This is why it is important that we understand the standard window sizes for Canadian homes. This way, we can better known our options in terms of styles and customizations.

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Standard Window Profiles in Canada

Different window manufacturers will have their own products to offer. But all the factors for windows are the same, with the most obvious of these being the window profile (width) of the frame.

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Casements, Brickmould and Jamb Extensions

There are different profiles for different types of windows. Casement and awning windows generally have a higher (wider) frame while slider hung and end-vent windows usually have a low frame. Fixed picture windows can come with both. This is important to consider when installing new windows next to older ones to make sure the profiles are similar. A high or low profile frame can influence how much light gets in with a high profile frame meaning there is less area for glazing and therefore less light than a low profile frame.

Another obvious feature is the casing, or trim, around the window. Standard window sizes usually have a 2 5/8in or 3 3/8in vinyl casing, but this can slightly vary, especially depending on the type of brickmould used. Brickmould is the seal between the wall and frame, keeping out the outside elements such as moisture and air. For window replacements, the brickmould size is often made to match the one on the existing window.

A jamb extension is another important element to a window. It is a frame that fills the depth of the wall space from the interior facing window frame. It helps create a perfect edge for the casing. Jamb extensions come in various sizes, depending on the width of your custom-made window.

When it comes to the actual window dimensions, this varies depending on the type. Some of us would love big windows for a big, bright room. However it is important to consider the maximum standard window height for each type of window. They should not exceed these measurements because they can become prone to breakage and be structurally unsound.

Triple pane windows are also slightly smaller than double pane, so this is important to consider when choosing your windows. Our maximum window sizes chart will help as a guideline to determine the right window size for you. Please note that you cannot have both the maximum width and maximum height for a structurally sound window.

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Minimum and Maximum Legal Window Sizes in Canada

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A bit of understanding on these main components can help homeowners decide what windows work best for them and are the most energy efficient for their home and give them an idea of what to ask and look for when dealing with a window installation company.