In Canada, windows come in standard sizes, making it much simpler to find the styles you need. From upgrades and renovations to building a home from scratch, understanding standard window sizes can help you achieve both aesthetic appeal and functionality for your living space.
We’ve put together a helpful homeowner’s guide to standard window sizes in Canada to help you learn everything you need and to make more informed decisions about your home.
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Standard Window Sizes in Canada
Most homes in Canada have typical window sizes suitable to common home styles. Others may have custom window shapes, sizes, and measurements for different architectural styles and structural requirements. We review some of the most common window sizes found in Canada below.
Picture Windows
Picture windows give expansive views and largely unobstructed sightlines—a popular choice for modern Canadian homes. They come in standard sizes ranging from small to large:
- Double-glazed Picture Windows: Minimum of 12”x12”; maximum of 90”x90”
- Triple-glazed Picture Windows: Minimum of 12″x12″; maximum of 60″x60″
🪟 Read More: What Is A Picture Window? A Complete Guide
Single and Double Hung Windows
Both single and double hung windows are popular choices in Canadian homes thanks to their classic design and versatile functionality. Standard single and double hung window sizes are as follows:
- Double-glazed Single Hung Windows: Minimum of 15″x27″; maximum of 46″x66″
- Triple-glazed Single Hung Windows: Minimum of 15″x27″; maximum of 36″x64″
- Double-glazed Double Hung Windows: Minimum of 15″x28″; maximum of 46″x58″
- Triple-glazed Double Hung Windows: Minimum of 15″x38″; maximum of 36″x54″
Casement Windows
Casement windows are a popular and stylish window design that brings more natural light. They feature hinges on one side that allow them to open outward. They come in standard sizes for different room configurations.
- Double-glazed Casement Windows: Minimum of 15.5″x18″; maximum of 38″x72″
- Triple-glazed Casement Windows: Minimum of 15.5″x18″; maximum of 36″x64″
Bay and Bow Windows
Image source: Canva
Bay and bow windows are unique in their protruding design made up of three to four window panels in a circular arrangement. They allow plenty of light in and create additional space and interest. Any window type can be configured as bay and bow windows, but they still follow standard sizes: Bay and Bow Windows: Minimum of 42″x36″; maximum of 1200″78″. Explore beautiful bay windows to give you some inspiration.
🪟 Read more: Ideas for Decorating Your Bay Windows
Awning Windows
Awning windows are hinged at the top and open outward from the bottom, providing excellent ventilation and protection from the elements. They’re a popular window type to allow fresh air and plenty of natural light into a space.
- Double-glazed Awning Windows: Minimum of 14.5″x14″; maximum of 50″x60″
- Triple-glazed Awning Windows: Minimum of 14.5″x14″; maximum of 50″x50″
Sliding Windows
Sliding windows feature sashes that glide horizontally along tracks, and are particularly popular in modern homes or tight spaces. They can either be a slider or lift out in design, and can feature double or triple panes. Standing sliding window sizes are:
- Double-glazed Single Slider Tilt Windows: Minimum of 19″x12″; maximum of 68″x46″
- Triple-glazed Single Slider Tilt Windows: Minimum of 19″x12″; maximum of 64″ 44″
- Double-glazed Single Slider Lift Out Windows: Minimum of 19″x11.5″; maximum of 70″x 48″
- Triple-glazed Single Slider Lift Out Windows: Minimum of 19″x11.5″; maximum of 60″x 46
- Double-glazed Double Slider Tilt Windows: Minimum of 19″x12.5″; maximum of 64″x44″
- Triple-glazed Double Slider Tilt Windows: Minimum of 19″x 12.5″; maximum of 62″x42″
Custom-shaped Windows
By definition, specialty shaped windows are made to a specific size and don’t have standard dimensions. Your chosen window manufacturer can craft them according to your preferences and the house’s structural and aesthetic needs.
🪟 Read more: 5 Types of Luxury Windows for Custom Homes
Legal Window Dimensions for New and Replacement Windows
In Ontario, only egress windows have specific dimensions and requirements listed in the Ontario Building Code—a minimum of 20”x24” with a net clearance of 5.7 square ft., large enough for a person to exit. Other windows only have standard window dimensions followed by window manufacturers, such as Clera Windows + Doors.
When completing any window work on your home, ensure your windows meet these residential standard window sizes or work with window manufacturers that will take care of this on your behalf.
Image source: Canva
Get High-quality Standard Windows from Clera Windows + Doors
If you’re looking for premium-quality windows that combine durability, energy efficiency, and aesthetic appeal, Clera Windows + Doors is your answer. As Ontario’s trusted window manufacturer and provider, we offer a wide range of options suitable to your style and budget.
With excellent customer service and a lifetime warranty, be sure of the best service from Clera. Contact us today for more information about our standard window sizes and a free quote.
