What Is the Most Common Window Size? Standard Window Sizes

The most common window size or average window size is 24x36. See all common window sizes & dimensions for fixed, standard & double-hung windows.

What Is the Most Common Window Size? Standard Window Sizes

Installing or replacing windows is no easy task. In addition to choosing the type of windows, you also need to consider the size, framing materials, and number of panes. It goes without saying that windows come in all shapes and sizes. Fortunately, manufacturers have standard window sizes to ease the burden of crafting, manufacturing and installing windows. So, what is the most common window size that you can find and need?

Average Window Size / Standard Window Sizes

Average Standard Window: 24×36
24″ wide (up to 28, 32, 40 inches)
36″ tall (up to 44, 52, 54, 62, 72 inches)
Average Window Size

What Is the Most Common Window Size?

In this article, our designers will be discussing the most common window size as well as different types of windows and their respective sizes for when you’re ready to replace your windows or install ones into your new home. This article will also go over how to determine the window sizes you need for every room.

Standard Window Sizes & Measurements

When measuring a window to determine the standard size, you’ll need to start by measuring the size of the rough opening (the measurement from the inside of one side of the window frame to the other). Manufacturers, therefore, find the standard size of your window by deducting half and inch for flashing materials and for the window to operate properly.

The Most Common Window Size

A 2020 standard window is one of the most common window sizes you’ll come across in most homes, small-scale office buildings and apartments. This window size typically refers to a 24×24-inch frame. However, half an inch is usually trimmed off the length and width of the window to give plenty of room for installation. Also keep in mind that there are different types of window frames that may affect the size of the windows.

What Is The Most Common Window Size

Double Hung Windows

These are the most common window types in homes across the US. Since they’re so popular, they come in a wide range of sizes. Double hung windows typically range between 24 and 48 inches in width and 36-72 inches in height.

Standard Size Starts from 24×48″

Picture Windows

Picture windows are big and beautiful, designed to provide maximum natural lighting for rooms with lots of space, such as living rooms and entertainment areas. Picture windows also come in several standard sizes, ranging from 24-96 inches in width and 12-96 inches in height.

Standard sizes up to 5′ wide and 6′ high

Sliding Windows

Sliding windows are popular for their functionality and that’s why you’ll likely find them in kitchens, bedrooms, basements, etc.

Standard sizes ranging from 36-84 inches in width and 24-60 inches in height

Bay Windows

These types of windows work well to emphasize and exemplify areas of your home you want to shine. Some other benefits of bay windows include that they provide a great view of the outdoors and offer excellent natural lighting.

Bay windows come in sizes ranging from 3’6” to 10’6” in width and 3’’ to 6’6” in height
Common Window Size

Casement Windows

Also referred to as hinged windows, casement windows are designed to open from the side with a crank. They’re ideal for warm climate areas or areas of the home that can benefit from extra ventilation, such as a kitchen or bathroom.

Standard sizes include widths in the 1’2” to 2’11.5” range and heights ranging from 2'5.5" to 6’5.5”

Awning Windows

Awning windows are hinged at the top and open outward, offering plenty of ventilation like casement windows.

Standard sizes for awning windows include widths ranging from 2’to 5’and heights ranging from 1’8” to 3’6”
Most Common Window Sizes


Q: What are Standard Wndow Sizes for Homes, Condos, and New Construction Luxury Remodels?
A: Standard window sizes can vary depending on the type of property. Here are commonly used dimensions for each:

  • Homes: In residential homes, standard window sizes typically range from 24 inches to 48 inches in width and 36 inches to 72 inches in height. However, the most common window size for homes is often 24 inches wide by 36 inches tall (2 feet by 3 feet).
  • Condos: Window sizes in condos can vary, but common standard dimensions include 24 inches to 36 inches in width and 48 inches to 60 inches in height. It's important to check with the specific condominium building or development for any specific requirements or restrictions.
  • New Construction Luxury Remodels: Luxury remodels often feature larger windows to enhance natural light and provide a more spacious feel. Standard window sizes for luxury remodels can range from 48 inches to 72 inches in width and 60 inches to 96 inches in height, or even larger, depending on the design and architectural preferences.

Q: What Is the Most Common Window Size for Residential Properties?
A: The most common window size for residential properties is typically 24 inches wide by 36 inches tall (2 feet by 3 feet). This size is commonly used for bedrooms, living rooms, and other areas in homes.

Q: Are There Standard Window Sizes for Commercial Buildings?
A: Yes, commercial buildings often have larger window sizes to allow more natural light into the space. Common standard sizes for commercial windows include 48 inches wide by 72 inches tall (4 feet by 6 feet) or even larger, depending on the specific requirements of the building.

Q: Can Window Sizes Be Customized?
A: Yes, window sizes can be customized to fit specific architectural designs or unique requirements. However, custom-sized windows may be more expensive and have longer lead times for production and delivery compared to standard window sizes.

So, What Is The Most Common Window Size?

The most common window size or average window size is 24×36. All common window sizes & dimensions for fixed, standard & double-hung windows can differ on manufacture. At PHX ID, we are happy to further discuss “What is the most common window size?” and options for standard or custom replacement. However, be sure to hire a professional window installer to ensure your windows are fit well and function properly. Do your due diligence and hire an installer who will guarantee quality work. With the help of this guide, readers will have a better understanding on which are the best windows for a new construction home, and the basics of choosing windows and be able to enjoy the benefits of having new windows.