Custom transom windows are an excellent way to brighten your foyer and add unique character to your entryway. Here’s what you need to know about these windows, their benefits, and the different styles available via Clark Hall Doors and Windows.
What is a Transom Window?
Transom windows are horizontal windows that sit above doors or windows, supported by a vertical structure (which is the transom itself). While they’re not doors or true windows themselves, they’re often recognized as a door’s transom “light,” since the light flows naturally through the transom window, over the crosspiece, and into the space.What’s The Purpose of a Transom Window?
Traditionally, transom windows were used as a passage of sorts, allowing air and light to flow through rooms and entryways even when doors are closed. Today, they are typically used as an added architectural element that accompanies custom door designs. Many homeowners also appreciate the privacy and utility transom windows bring to a space. They’re considered by many to be a fantastic use of space between the wall and the ceiling, especially if the length between the two is “odd” or shortened. Depending on the style you choose, your transom window can function doubly as a privacy tool. Lastly, many homeowners choose to design a door with a custom transom window because it adds a unique architectural element to the home’s design—but that’s not the only reason. Follow along as we dive into the benefits of these windows, as well as installation and design tips and frequently asked questions.3 Key Benefits of Transom Windows
Now that we’ve defined and answered the question: “what is a transom window?” It’s time to dig into the benefits. These include:- Increased natural light. Equip your door with an extra window to enjoy a brighter space, and to enhance the seamless flow between your exterior and interior. For added light, try pairing it with sidelights as well.
- Distinctive character. Transoms have been used for centuries, and today, they offer limitless customization. Whether you embrace their historic charm or opt for a sleek modern design, they add unique character to any space.
- Design functionality: Transom windows can help fill an entryway space without making the doors scale to an odd height. They’re ideal if you want double doors that aren’t too tall—simply add a transom to balance the space and enhance the design.
Designing & Installing a Custom Transom Window
To add a transom window, you’ll need to design a new iron door, as we replace the entire unit. Our transom windows must be attached to the same steel frame as the door for a secure fit. Otherwise, a detached “window” that’s added to an existing entry will just be a fixed window that’s positioned above your door. Have a tricky entryway layout? Our experts will work with you to customize the height of your door to match nearly any vision. While you’re sketching, keep in mind that transom windows can range in height from a few inches to a couple of feet, and their width typically spans the width of the door. Your window can also be designed to complement any decorative door style, including modern, ornate, and traditional. Once you and our experts finish and approve the sketch of your new door and transom, we will send your piece through the custom fabrication process. Installation will then take place in 16-18 weeks.Featured Projects Showcasing Transom Windows
Gather design inspiration from some of our favorite transom-based projects in a variety of door and home styles.Modern & Sleek with Complementary Sidelight

Intricate & Ornate with Detailed Scrollwork

Timeless & Traditional with Classic Silhouette

Frequently Asked Questions
Where did transom windows come from?
Transom windows first appeared in 14th-century Europe and were vital in providing cross-ventilation while still maintaining a home’s privacy. They were commonly found in homes, apartments, schools, and other buildings before central air conditioning and heating became popular in the early- to mid-20th century.
Are transom windows outdated?
While no longer essential for ventilation, transom windows remain popular for adding natural light and architectural charm.
What are mullions and transom windows?
By definition, transom windows are transverse horizontal structures that separate a door from a window, and they contrast with a mullion, which is a vertical structure. A mullion, much like a muntin, is primarily used for decorative purposes only.
Learn more about iron doors today.
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