The best half circle window shade depends on matching the shade’s radius and width to your arch. These five no-drill options use blackout-backed fabric and can be trimmed, making them worth considering for different window sizes. MYshade’s 36-by-18-inch option suits smaller arches, while its 72-by-36-inch version and Changshade’s 36-inch-radius shade are intended for larger ones. For a 24-inch radius, consider Changshade; for a compact 12-inch radius, consider MYshade’s black shade.
| Product | Listed radius range | Notable fit detail |
|---|---|---|
| MYshade, White 36 × 18 inches | 6–18 inches | Trim-to-fit design |
| MYshade, White 72 × 36 inches | 6–36 inches | Larger listed size |
| Changshade, 24-inch radius | 6–24 inches | Tool-free installation |
| Changshade, 36-inch radius | 6–36 inches | Trim-to-fit design |
| MYshade, Black 24 × 12 inches | 6–12 inches | Compact size and black color |
MYshade White 36 × 18-Inch Arch Shade
This MYshade option is best for a smaller half-circle window with a radius within the listed 6-to-18-inch range. Its 36-by-18-inch dimensions and trimmable design may help accommodate an irregular arch, but measure the window before cutting.
The shade uses non-woven honeycomb fabric with a laminated aluminum foil film backing. The listing describes it as blackout and privacy-focused. Included accessories are intended to help prevent tilting or falling, and double-sided tape enables installation without tools.
- Best for: Smaller arches and shoppers seeking a white, tool-free shade.
- Consider: The listed radius range tops out at 18 inches, so it is not the right listed size for larger arches.
MYshade White 72 × 36-Inch Arch Shade
Choose this MYshade model if your arch is larger and falls within the stated 6-to-36-inch radius range. Its listed dimensions are 72 by 36 inches, making it the larger MYshade option in this selection. The material and backing are described as durable non-woven fabric and laminated aluminum foil film.
Like the smaller model, it can be trimmed for an irregular arch and attaches with double-sided tape rather than a tool-based mounting process. The included accessories are intended to reduce tilting or falling.
- Best for: Larger half-circle windows that fit its listed size and radius range.
- Consider: Confirm the full shade dimensions and arch radius; the product’s large format may not suit a compact window.
Changshade 24-Inch-Radius Blackout Shade
This Changshade shade is best for half-moon and half-circle windows with a radius up to 24 inches, according to the listing. It is described as suitable for arches from 6 to 24 inches and can be cut for an irregularly shaped window.
Its non-woven fabric has a laminated aluminum foil backing, which the manufacturer describes as providing blackout and privacy. Accessories help hold the shade in place, while strong double-sided tape supports tool-free installation.
- Best for: Buyers whose measured arch falls within the 6-to-24-inch range.
- Consider: This model’s stated upper radius limit is lower than the 36-inch-radius alternatives.
Changshade 36-Inch-Radius Blackout Shade
For a larger arch, this Changshade model lists a radius range of 6 to 36 inches. It is made from non-woven fabric with laminated aluminum foil backing and is designed for half-moon or half-circle windows. Its trimmable format is intended to help with irregular window shapes.
The included accessories are designed to prevent the shade from tilting or falling, and double-sided tape makes installation tool-free. The listing does not provide a specific overall width and height in the product name, so compare the actual shade dimensions with your window before ordering.
- Best for: Larger arches within the stated 36-inch maximum radius.
- Consider: Verify the product’s dimensions, not just its radius range, before purchase.
MYshade Black 24 × 12-Inch Arch Shade
This compact MYshade shade is best for a small arch with a radius between 6 and 12 inches. The listed size is 24 by 12 inches, and the black color makes it a distinct choice among the white options here. Its non-woven honeycomb fabric has a laminated aluminum foil film backing.
The product can be trimmed for a closer fit and uses double-sided tape for no-tool installation. Accessories are included to help prevent tilting or falling.
- Best for: Compact windows and buyers seeking a black shade.
- Consider: Its 12-inch maximum radius limits its use on larger arches.
Buying Guide: How to Choose a Half Circle Window Shade
How do you measure an arched window?
Measure the arch radius and the shade area’s width and height before selecting a product. Compare those measurements with both the listed radius range and the shade’s stated dimensions. A radius range alone does not confirm that the shade’s overall width and height will cover your window.
Which radius range should you choose?
Match your measured radius to the product range. The compact MYshade black model lists a 6-to-12-inch range; the MYshade white 36-by-18-inch model lists 6 to 18 inches; Changshade’s smaller model lists 6 to 24 inches. The two larger-radius options list ranges up to 36 inches.
Does trimming make every shade a custom fit?
The listings say these shades can be trimmed for irregular arches, but trimming does not replace measuring. Check the product instructions and dimensions before cutting, because an incorrect cut may leave gaps or make the shade unsuitable for the window.
What should you know about installation and light control?
All five products describe double-sided tape and tool-free installation. They also describe blackout fabric or backing, but actual light control can depend on how closely the shade fits the opening. Consider whether you need a close fit for privacy and room darkening, and follow the included installation guidance.
Frequently Asked Questions
Can these shades fit an irregular half-circle window?
The listings describe each shade as trimmable for irregular arches. Measure carefully and confirm that the selected model’s dimensions and radius range suit the window.
Do these half circle shades require tools?
Each product listing describes installation with double-sided tape and says tools are not required. Accessories are also included to help prevent tilting or falling.
Which option is intended for the largest radius?
The 72-by-36-inch MYshade white shade and the Changshade 36-inch-radius shade both list suitability for arches up to a 36-inch radius.
Are all five shades the same color?
No. Four listed options are white, while the compact MYshade 24-by-12-inch option is black.
Are these shades designed for privacy?
The product listings describe their laminated aluminum foil backing as providing blackout and privacy. Fit and installation can affect how much light or visibility remains around the edges.