Condensed Look At Standard Window And Door Sizes

  • Justin Woo
  • January 22, 2020
  • Window Tips
  • Windows And Doors

Standard window sizes, as well as entryway sizes, can often become the most extensive component while undertaking the task of revamping portions of your home. Moreover, it is important to gather the appropriate information in order to make the right decision that is able to meet your specific needs for the area at hand. To gain insight on how window and entryway pieces are installed in the proper location and what they add, it is crucial to have a working knowledge of the common terminology you will hear in the business.
Given that every window or door part is important, the ideal course of action would be to attempt to fully understand what is necessary to find the proper components in order to make everything go along much more smoothly. Everything comes in to play, from the material, security level, as well as the design and size as they can all positively or negatively affect the end result. Due to this, individuals should not compromise on any portion, whether they can be modified or upgraded in the future or not.
A useful aspect to take note of is how the door and window sizes may change from place to place, by this I mean pay attention to how each country differs in terms of the rules and guidelines regarding standard sizing that manufacturers are expected to follow. In relation to the standard sizing of windows and doors made within Canada, here is an outline detailing their attributes based on the region:

Standard Windows sizes within Canada

Before installing new windows a great tip is to first take a look at the profile and width their frame. Each window can have a different profile, leaving it up to the homeowners to decide which one they prefer. For example, end-vent and slider windows often have a low profile frame in comparison to awnings and casements that have higher or wider frames (similar to fixed picture windows). This is even more important if windows are being put in place of the previous ones, as the product will not be ideal if the profiles are a poor match.

Depending on whether you choose a low or high profile will impact the amount of natural lighting that will be able to permeate the area. A high profile option, for example, will often provide less surface area which results in less light. To further aid you, here are a few factors to consider when choosing the right window profile.

  • Casing- the trim or casing surrounding a window will have varying measurements due to being manufactured by different companies. However, the standard size for vinyl trim is usually around 2 ⅝ inches.
  • Brickmould- is a material strip that is found on the exterior, meant to occupy the space between the wall and the frame (similar to a seal used for air and water infiltration). When deciding upon a new window or door, the sizing of the brickmould must be similar to the previous one, whereas a special case can utilize a larger brickmould.
  • Jamb Extensions- is intended to cover an area that is exposed to rough openings as well as to connect the frame and casing. The size of the Jamb extension is based on the width of the window. Total Home Windows and Doors offers extensions reaching 3 ¼ in width that are sure to meet all your needs. This said, there are multiple alternatives options if this is not what you are looking for.

Maximum and Minimum window sizing within Canada

With that out of the way, we can now take a look at the chart outlining Candian guidelines regarding doors height:

Window style Max width Max height area Max (sqft)

  • Single Hung (Double Paned) 49” 80” 24”
  • Single Hung (Triple Paned) 45” 78” 21.66”
  • Double Hung (Double Paned) 49” 78” 24”
  • Double Hung (Triple Paned) 48” 68” 21.66”
  • Single Slider (Double Paned) 78” 54” 24”
  • Single Slider (Triple Paned) 78” 54” 24”
  • Double Slider (Double Paned) 78” 54” 24”
  • Double Slider (Triple Paned) 72” 48” 21.66”
  • Awning (Double Paned) 48” 60” 24”
  • Awning (Triple Paned) 50” 50” 17.36”
  • Casement (Double Paned) 38” 78” 18.5”
  • Casement (Triple Paned) 36” 78” 16.05”

Notably, it should be mentioned that homeowners can not have both of the maximum measurements simultaneously. Instead, it is best to keep the maximum amount of square footage available, otherwise, the doors and windows may not fit as seamlessly into the opening.

Window style Max width Max height area Max (sqft)

  • Single Hung (Double) 49” 80” 24”
  • Single Hung (Triple) 45” 78” 21.66”
  • Double Hung (Double) 49” 78” 24”
  • Double Hung (Triple) 48” 68” 21.66”
  • Single Slider (Double) 78” 24” 54”
  • Single Slider (Triple) 78” 24” 54”
  • Double Slider (Double) 78” 54” 24”
  • Double Slider (Triple) 72” 48” 21.66”
  • Awning (Double) 48” 50” 24”
  • Awning (Triple 50) 50” 50” 17.36”
  • Casement (Double) 38” 78” 18.5”
  • Casement (Triple) 36” 78” 16.05”

With this basic sizing chart as a reference, it should become much easier to find the right selection to fit the dimensions of your home. While there is no golden rule surrounding the process, it is helpful to gain a better understanding of the legal procedures revolving around replacing your old doors and windows to avoid a potential headache in the long run.

Sizing for standard doors

In terms of the standard door height, like windows, there are also some general rules and guidelines to keep in mind when installing doors that can aid you in the process. These depend greatly on the type of door you wish to install, as the dimensions of the door will most likely vary based on which door you are looking to purchase.
For exterior doors, the standard size is 6’8” by 3 ft 96”. However, with newer doors, it is possible to have a dimension of 30 and 32” in width. Moreover, some doors have also been measured at roughly 7-8” as well as 24-42” in height.

In contrast, sliding doors will generally be approximately 6’0” in height and around 6’8” in width to allow plenty of room. Additionally, with this much space, there is a plethora of natural lighting that can shine through.
Interior doors standard sizing in Canada is often 80” in height. However, the width can vary greatly, ranging from anywhere between 28, 30, 32, or 36 inches in width. Finally, the thickness of this door is commonly 1-⅜”.

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