Best Half Circle Window Coverings for Circular and Arch Windows
The following half circle and arched window coverings offer light control, privacy, and easy installation without drilling. Each option fits arches and semi-circular windows with various radii, using lightweight honeycomb or pleated fabrics, and many come with adhesive installation for a tool-free setup. The selections below highlight popular choices, performance features, and installation details to help American homeowners compare quickly.
| Product | Brand | Radius / Size | Key Feature |
|---|---|---|---|
| Arch Window Shade Blackout Half Circle Moon | Maritown | 36″ radius | Two-sided color, no-drill, strong double-sided tape |
| Myshade Arch Window Shades Half Circle Blackout | MYshade | 72″ W x 36″ H | Cordless, no tools, complete blackout with foil |
| Myshade Arch Window Shades Half Circle Blackout | MYshade | 72″ W x 36″ H | Same great blackout with easy install |
| Arch Window Shade Radius 18 Inch Half Circle | Maritown | 18″ radius | Stick-on, no tools, 40-60% light filter |
| Changshade Arch Window Shades Blackout Half Moon | Changshade | 24″ radius | Customizable fit, tool-free installation |
| Arch Window Shade Radius 12 Inch Half Circle | Maritown | 12″ radius | Stick-on, easy install, 40-60% light filtering |
| OUDUCK Arch Window Shades Blackout Half Circle | OUDUCK | 36″ radius | Built-in aluminum for blackout, thermal insulation |
Note: The table highlights five representative products; additional models with similar designs are also available. This guide focuses on widely compatible, easy-install options designed for U.S. homes and standard arched windows.
Arch Window Shade Blackout Half Circle Moon (Maritown)

This arched, half-round shade is designed for no-drill installation and provides solid light blocking with a double-sided color option. It comes in multiple sizes and colors, including white and beige, to fit various arch radii and aesthetic preferences. The product uses a thick non-woven fabric with a built-in reflective coating to reduce heat transfer while maintaining privacy. An arched fixed bracket and strong double-sided tape simplify mounting, allowing installation without tools. The result is a stable shade that resists tilting or falling, ideal for living rooms, bedrooms, and home offices with curved windows.
Myshade Arch Window Shades Half Circle Blackout (72″ W x 36″ H, White)

MYshade’s arch blackout shades are built to block light effectively, featuring a laminated aluminum foil backing that enhances privacy protection. The 36″ radius fits a wide range of arched windows, and the blinds are easy to trim for irregular shapes. Each kit includes accessories to prevent tilting and falling, plus sturdy double-sided tape for tool-free installation. The cordless design makes operation smooth and child-friendly, suitable for bedrooms, nurseries, and media rooms needing full darkening.
Myshade Arch Window Shades Half Circle Blackout (72″ W x 36″ H, Black)

This black version mirrors the white variant with blackout performance and a cordless, no-tools installation approach. The product uses durable non-woven fabric and a laminated backing to ensure complete privacy while minimizing external light leakage. It’s designed to fit a 36″ radius and is easily trimmed to accommodate slightly irregular arches. Aimed at bedrooms and media rooms, it provides a sturdy, low-profile solution that blends with most decors.
Arch Window Shade Radius 18 Inch Half Circle (Maritown)

This arched shade unfolds to an 18-inch radius, turning a rectangular blind into a curved, half-moon shape. It uses double-sided adhesive for easy stick-on installation and does not require tools. The thickened non-woven fabric filters light and UV rays, providing privacy and a comfortable interior environment. It is particularly suitable for smaller arches or windows with consistent radii across the opening and complements entryways or front doors with semi-circular windows.
Changshade Arch Window Shades Blackout Half Moon (Radius 24″)

Changshade’s arch blackout shades are crafted for a 24″ radius with a long-lasting non-woven fabric base and a laminated aluminum backing to ensure complete blackout and privacy. They’re designed to be trimmed for a perfect fit on irregular arches and include accessories to prevent tilting or slipping, along with double-sided tape for simple, tool-free installation. This option suits rooms where a crisp, darkened environment is desired, such as home theaters or cozy bedrooms.
Arch Window Shade Radius 12 Inch Half Circle (Maritown)

This compact 12-inch radius shade is a stick-on, semi-circular window covering designed for quick, tool-free installation. The double-sided adhesive secures the arch shade to the arched accessory in minutes. The thick non-woven fabric filters 40-60% of incoming light, balancing privacy with natural light. It’s a practical solution for smaller arched windows in kitchens or bathrooms where a discrete, low-profile shade is preferred.
OUDUCK Arch Window Shades Blackout Half Circle (36″ Radius)

OUDUCK’s blackout arch shades feature a built-in aluminum foil backing for extensive light blockage and privacy. The honeycomb design provides thermal insulation, helping to keep rooms warmer in winter and cooler in summer. The shade is designed to fit a 36″ radius and is easily cut to match actual window measurements. It’s well-suited for living rooms and bedrooms where energy efficiency and privacy are priorities.
Buying Guide: Key Considerations For Half Circle Window Coverings
- Radius compatibility: Measure your arch window’s radius and select a shade sized to fit or one that can be trimmed to fit without compromising operation.
- Light control vs privacy: Choose blackout or room-darkening fabrics for maximum privacy and darkness, or lighter filters for natural light with some privacy.
- Installation method: Tools-free, stick-on installations are ideal for rental homes or temporary setups; fixed brackets provide stability for larger arches.
- Material and durability: Look for non-woven fabrics with foil backing for better light blocking and insulation; aluminum-backed options add privacy and thermal performance.
- Maintenance: Consider fabrics that are easy to clean or wipe down and resistant to sagging in larger spans.
- Color and design: Two-sided color options can help match interior decor; white backsides reflect heat and maintain a clean look from outside when closed.
- Cordless operation: Cordless designs reduce hazards and simplify use, especially in bedrooms or nurseries.
- Trimability: Many arched shades can be trimmed to fit irregular arches; verify recommended trimming dimensions before cut.
- Warranty and support: Check manufacturer warranties and return policies for long-term reliability and replacement options.