What are those half circle windows called?
Half-circle windows are typically referred to as semicircle or fanlight windows. These elegant, curved-top windows are often installed above doors or large rectangular windows to enhance architectural appeal and bring in additional natural light. The curved design offers a visually striking focal point in any room.
Overview: What Are Those Half Circle Windows Called
Our arched window blinds are fully moveable, making them a perfect fit for virtually any arched or curved window. Whether you have a classic arch, half-moon, or an eyebrow arch, our blinds will provide protection from the sun when needed and offer wide-open views when desired.



Exclusive Operation: What Are Those Half Circle Windows Called?
BCC Arched & Angled Blinds specializes in providing custom blinds and shades for semicircle windows. Our exclusive designs ensure the window treatments fit perfectly, complementing the curved shape and enhancing the elegance of the space.
Measuring Specialty-Shaped Windows: General Guidelines

1
Measure the Overall Width
Measure the widest point of the window opening.
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Take measurements straight across, from left to right
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Measure in more than one location if the window shape changes
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Record the largest width to the nearest 1/8 inch
2
Measure the
Overall Height
Measure from the lowest point of the window opening to the highest point of the shape.
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Measure vertically at the center whenever possible
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For curved or angled windows, note where the highest point occurs
3
Do I Need a Template for Specialty-Shaped Windows?
No — a physical template is not required in most cases.
For specialty-shaped windows, a photo or simple drawing with clearly labeled measurements is typically sufficient to capture the shape accurately. This approach allows custom blinds or shades to be fabricated precisely without the need for tracing or cutting templates.
Templates are generally unnecessary as long as:
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Measurements are taken carefully
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All key dimensions are clearly labeled
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The shape is visually documented with a photo or sketch
This makes the measuring process simpler while still ensuring an accurate, custom fit.
Remote Control Operation: What Are Those Half Circle Windows Called
Remote-controlled blinds or shades provide ease of use for half-circle windows. Our custom solutions ensure precise alignment with the window’s curvature, allowing you to control the amount of light entering the room with the simple press of a button.

Sun Control, Heat Control, and Light Control: What Are Those Half Circle Windows Called
Half-circle windows can let in a lot of sunlight, which may lead to overheating or glare. Our custom shades and blinds offer superior sun control, helping to regulate heat and light while maintaining the visual appeal of the window.
Motorization: What Are Those Half Circle Windows Called
Motorized window treatments for half-circle windows offer an ideal solution for managing light and privacy. With custom motorized shades, you can adjust the level of light effortlessly while ensuring a seamless fit for the window’s unique curved shape.

Half Circle Window Blinds: Any Size. Any Shape.
Since 1998, BCC Arched & Angled Blinds has been crafting custom window treatments for a wide variety of shapes, including half-circle windows. With a focus on quality and precision, our blinds and shades can accommodate any size or style. Contact us today for the perfect fit for your unique windows.




