What Are The Common Standard Double-Hung Window Sizes?

What Are The Common Standard Double-Hung Window Sizes

Windows come in a variety of shapes and sizes, from standard sizes to custom window sizes for unique spaces. This is the same case for double-hung windows – but do you know what size your double-hung window should be?

Knowing the standard double-hung window sizes will help you when it comes time to choose one for your home or business. In this blog post, we’ll cover everything you need to know about standard double-hung windows so that you can make an informed decision when it comes time to purchase and install them.

We’ll discuss topics such as how manufacturers determine the dimensions of their windows, how to measure double-hung windows for replacements, common types of windows, and more! So let’s get started!

Standard Double-Hung Window Sizes

What is a Double-Hung Window?

A double-hung window is one of the most common types of windows that you’ll find in homes and businesses. They are made up of two sashes (or frames) that slide vertically up and down, which makes them great for ventilation as well as makes them easy to open and close.

They are often used in living rooms and bathrooms, but even in other spaces like kitchens and bedrooms. The lock or latch in the middle of the window, where the two sashes meet.

Standard Window Sizes for Double-Hung Windows

First, let’s look at the standard dimensions of double-hung windows. The standard sizes are typically determined by whole numbers, meaning the window’s height and width measurements come in increments of two (or divisible by 2).

For example, some of the standard double-hung window dimensions include:

  • a width of 22 inches, 28 inches, 32 inches, or 40 inches
  • a height of 36 inches, 44 inches, 52 inches, 54 inches, and 62 inches

These are standard sizes that many window manufacturers use when producing their windows, although some may offer smaller or larger sizes too.

Understanding a Window’s Size Notation

Once you’ve determined a standard window size that you want, it’s important to understand how the measurements are denoted. The width of the window will usually come first, followed by the height measurement. These measurements are listed in feet and inches.

For example, a double-hung window with a width of 24 inches and a height of 36 inches would have a size notation of 2030. This means that the window is two feet (24 inches) wide, and three feet (36 inches) tall.

Knowing this trick will make it much easier for you to order new windows should you ever need them. And if you get confused on the math, there are plenty of window size charts around the internet that you can use.

Pro tip: When measuring a double-hung window, you’ll need to measure both the height and width of the frame itself – not just the glass panes or sash – as the entire width and height is used to determine its size notation.

Lastly, you will want to remember that these whole numbers are rounded up or down to the nearest half inch. Therefore, the actual measurement of a 2030 window might be more like 23 1/2″ by 35 1/2″ – so don’t be alarmed if your measurements aren’t exact.

How to Measure Double-Hung Windows for Replacement

Now that you know what a standard double-hung window size looks like, let’s move on to how to measure the dimensions you will need for replacement windows.

If you need to measure your existing double-hung window frames for replacement windows isn’t as tricky as it sounds.

  • You will need to measure the jamb liner (vertical right side and left side of the window, on the inside of the frame) as well as the middle sash (the horizontal piece of the window where it latches).
  • You will use a basic measuring tape to do this. Simply press the end of your tape against one side, hold it firm, and pull the tape tightly across with your other hand to the place where you want measuring.
  • Read and record the measurements, and then take them with you when you order your replacement window panes.

When installing double hung windows, be sure the installer uses proper flashing materials around the window frame in order to ensure it is installed correctly. The wrong type of flashing could lead to water damage and other problems if it’s not done properly.

What if My Double-Hung Windows are Custom Window Sizes?

If your double-hung windows are not standard window sizes, you may need to get a custom or made-to-order window. This is actually quite common in older homes or historical buildings where the rough opening size of the window doesn’t match any of the standard measurements.

In this case, you will need to measure the exact width and height of both sides of the frame as well as the middle sash for an accurate measurement. You can then use these measurements to order custom-made windows that fit perfectly in your space.

Always make sure you double check these measurements before buying new windows – if they don’t fit correctly then you may be stuck with a big headache and extra expenses down the line!

Other Types of Windows Available to Purchase

Other Types of Windows Available to Purchase
Image Credit: Pinterest

You may have moved into a home with pre-existing double-hung windows, but what if you want something different? You might be wondering if there are other types of windows available to purchase.

The answer is yes! The most common window types are casement windows, sliding windows, bay windows, and picture windows. Each of these window types offers a unique look and style to any room or space, giving you the flexibility to choose the one that best fits your home.

However, do keep in mind that when choosing one of these window types, you’ll need to measure the spots on the walls where you will want to replace your pre-existing double-hung windows. This is because each type of window will require a different size and shape to fit correctly – the standard sizes of picture windows, for example, are quite different than the standard sizes for double-hung windows. It will require a little widening of the window’s rough openings, which is a job best left to a professional carpenter.

If you need help with measuring for any of these types of windows, or if you need a free quote for replacement windows, don’t hesitate to contact your local home improvement store.

Frequently Asked Questions About Double-Hung Windows

Now that you know how to measure double-hung windows for replacement, let’s answer a few of the most common questions about this type of window.

What is the Average Cost to Replace a Double-Hung Window?

The average cost to replace a double-hung window depends on the size of the window and the type of materials being used. Generally speaking, you can expect to pay anywhere from $300 to $700 per window for standard double-hung windows, on average.

Can You Just Replace the Window and Not the Frame?

Yes, you can replace the window without replacing the frame. However, it is recommended to replace both if the frame is old. Older frames may be showing signs of wear and tear, which will negatively affect the lifespan of your new window.  Replacing both ensures that the frame and window are both up to date and in good condition.

How Much Does a Custom Double-Hung Window Cost?

Custom double-hung windows will cost more than standard double-hung windows because they are made to measure. The exact cost of a custom double-hung window will greatly depend on the size, style, and material you choose for your window. While a standard double-hung window may cost between $300 and $600, a custom one may be between $350 and $1,050, so you just never know.

It is best to get a free quote from a local professional before purchasing a custom double-hung window.


Overall, double-hung windows are an efficient and affordable option for replacing existing windows in your home. They are, after all, one of the most common window types out on the market today.

Remember that knowing how to accurately measure double-hung windows is essential in order to ensure that the window you purchase will fit correctly in the space. Additionally, it is important to consider the cost and material of your new window before making any decisions. With all the right information, you’ll be able to find the perfect double-hung window for your home in no time.

Good luck!

What other questions do you have about double-hung windows? Let us know in the comments below.

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