Half circle shades for windows offer a blend of light control, privacy, and style for arched and semi-circular windows. This guide highlights five top-rated options, focusing on blackout and light-filtering performance, easy installation, and flexibility for irregularly shaped arches. All selections are cordless and designed for quick, tool-free setup, making them suitable for a wide range of rooms and decors.
| Product | Features | Radius Fit | Installation |
|---|---|---|---|
| MYshade Arch Window Shades Half Circle Blackout (72″W x 36″H) | Blackout, cordless, half-moon honeycomb, no tools | 36″ radius | Easy install with double-sided tape |
| Touri Arch Window Light Filtering Pleated Shade (72″ x 36″) | Light filtering 60-70%, easy cut, taped installation | 36″ radius | Cut to length, no tools required |
| MYshade Arch Window Shades Half Circle Blackout (36″W x 18″H) | Blackout, cordless, half-moon honeycomb, no tools | 18″ radius | Double-sided tape for quick install |
| Grandekor No Drill Arch Window Shades Blackout (48″W x 24″H) | Honeycomb, dual-sided color, privacy and light blocking | 24″ radius | Includes arched fixed bracket and tape |
| Changshade Arch Window Shades Blackout (Radius 24″) | Blackout pleated, half-moon, easy cut, no drill | 24″ radius | Double-sided tape for tool-free install |
MYshade Arch Window Shades Half Circle Blackout 72″ x 36″

Arch honeycomb blackout shades are made from durable non-woven fabric for long-lasting performance and easy maintenance. A laminated aluminum foil film ensures complete blackout and privacy. Designed for half-round windows with a 36″ radius, suitable for radii 6 to 36″. The shade can be trimmed to fit irregular arches. Each package includes accessories to prevent tilting or falling, plus sturdy double-sided tape for tool-free installation.
Touri Arch Window Light Filtering Pleated Shade (2 PCS)

These pleated shades offer light filtering to reduce glare while maintaining privacy. They filter about 60% to 70% of sunlight, protecting furnishings from UV damage. Easy to cut to length and install using included tape. The shade is designed for a maximum 36″ radius arch, aligning with most standard semi-circle windows.
MYshade Arch Window Shades Half Circle Blackout 36″ x 18″

Half round blackout shades in a smaller 18″ radius fit arched windows with radii from 6 to 18″. The fabric is durable and easy to maintain, with laminated aluminum foil to provide full blackout and privacy. The product trims to match irregular arches and includes accessories to prevent tilting, along with strong double-sided tape for simple installation.
Grandekor No Drill Arch Window Shades Blackout 48″ x 24″

Grandekor’s half-moon blackout shades combine premium white non-woven fabric with an inner honeycomb design and laminated foil for heat reduction and privacy. The 24″ radius can be trimmed to fit 6–24″ radius arches, and the kit includes arched brackets and tape for stable, tool-free installation. Edge light leakage may occur on non-half-round windows, so proper fit is essential.
Changshade Arch Window Shades Blackout, Radius 24″

Changshade offers a blackout pleated option for half-moon windows with a 24″ radius. The shade is designed for easy trimming to fit irregular arches, using a sturdy double-sided tape for a tool-free installation. The fabric is durable and dust-resistant, blocking strong light while maintaining a private interior environment.
Buying Guide: Key Purchase Considerations
- Window radius compatibility: Ensure the product radius matches your arch window (commonly 18″, 24″, or 36″). Some shades are trim-friendly to fit a range of radii.
- Light control needs: Choose blackout fabrics for complete darkness or light-filtering options for ambient glow and glare reduction.
- Installation method: Cordless designs with tape or fixed brackets offer tool-free installation, ideal for renters or quick updates.
- Material and durability: Look for double-sided tape, laminated foil backing, and honeycomb construction for privacy and insulation benefits.
- Aesthetic and color: Pick colors that complement your decor; many options include white, gray, and neutral tones for versatility.
- Maintenance: Non-woven fabrics are typically easy to wipe clean; consider washable or stain-resistant finishes if applicable.
- Potential edge light leakage: Some arch shades can leave light gaps on non-half-round frames. Confirm fit before purchasing.
When selecting half circle shades for windows, balance light control, fit, and DIY installation. The options above emphasize ease of installation, arched compatibility, and a mix of blackout and light-filtering performance to suit different rooms and privacy needs.