Best Arch Moon Window Shades for Half-Circle Windows in 2026
Answering the question: these arch moon window shades provide effective blackout, privacy, and light control for half-round windows without tools. They’re ideal for homeowners upgrading arched openings, renters seeking easy installs, and anyone wanting a neat, stain-free look. The top picks below cover a range of radii (6–36 inches), colors, and sizes, helping you choose the best fit for your half-circle window. A quick buying table follows to compare standout details at a glance.
- MYshade Arch Window Shades Half Circle Blackout Cellular Shades (White, 72″ W x 36″ H)
- MYshade Arch Window Shades Half Circle Blackout Cellular Shades (Black, 72″ W x 36″ H)
- Grandekor No Drill Arch Window Shades Blackout (White, 48″ W x 24″ H)
- Redi Shade No Tools Original Arch Light Blocking Pleated Shade (White, 72″ W x 36″ H)
- Maritown Arch Window Shade Blackout Cellular Shade (White, 36″ W x 18″ H)
Buying guide snapshot for quick comparison:
| Product | Best For | Radius Range (inches) | Installation | |
|---|---|---|---|---|
| MYshade White 72×36 | Full blackout in living rooms | 6–36 | No tools | High |
| MYshade Black 72×36 | Dark bedrooms or media rooms | 6–36 | No tools | High |
| Grandekor White 48×24 | Dual-use for smaller arches | 6–24 | DIY cut | Medium |
| Redi Shade 72×36 | Easy, tool-free customization | 6–36 | Trimming only | Medium-High |
| Maritown White 36×18 | Budget-friendly option | 6–18 | Double-sided tape | High |
MYshade Arch Window Shades Half Circle White 72″ W x 36″ H

Overview: These arch honeycomb blackout shades are crafted from durable non-woven fabric with a laminated aluminium foil film. They provide complete blackout and privacy protection for half-round windows with a 36″ radius. They’re designed to fit radii from 6 to 36″ and can be trimmed for irregular arches. Installation is tool-free thanks to double-sided tape, and accessories prevent tilting or falling. Best for: living rooms or bedrooms with large half-circle windows where full darkness is desired. Caution: trimming must be precise to maintain blackout performance.
Why selected: Strong blackout performance, flexible radius coverage, and easy, tool-free installation. The included accessories support stable mounting on curved frames, making this a versatile pick for many arch sizes.
Best for: Homeowners with large arched windows seeking complete privacy and room-darkening capability without drilling.
MYshade Arch Window Shades Half Circle White 24″ W x 12″ H

Overview: A compact option with the same arch design and tool-free installation. The 12″ height accommodates smaller arch openings and provides privacy with a subtle light filter. Best for: smaller half-round windows or spaces where a lighter silhouette is preferred. Caution: smaller sizes may offer less total blackout area than larger panels.
Why selected: Excellent for tight arches or bathrooms where a discreet, easy-to-install shade is needed without bulk.
MYshade Arch Window Shades Black 72″ W x 36″ H

Overview: This black version mirrors the white model’s features with blackout performance and tool-free installation. The 36″ radius arch is compatible with radii from 6 to 36″. It includes accessories to prevent tilting and double-sided tape for easy mounting. Best for: media rooms or bedrooms where a darker environment is preferred for sleep or streaming. Caution: color may show lint more easily than lighter fabrics in high-traffic rooms.
Why selected: Consistent blackout capabilities with a dark shade that reduces glare and enhances viewing comfort, while remaining simple to install.
Grandekor No Drill Arch Window Shades White 48″ W x 24″ H

Overview: A no-drill arch window shade with blackout capabilities and a cellular honeycomb design. The 24″ radius fits arches sized for 6–24″ radii and can be trimmed to a precise fit. It supports heat insulation and light blocking, benefiting rooms that require temperature and glare control. Best for: smaller half-circle windows in bedrooms or nurseries where a clean, white look is desired. Caution: edge light leakage may occur if installed on non-half-round windows.
Why selected: Flexible trimming for precise fits and a dual-function design that helps manage both light and temperature in compact arches.
Redi Shade No Tools Original Arch Light Blocking Pleated Shade White

Overview: A trim-at-home pleated shade designed for half-round arches. No tools required. It offers light control, privacy, and a heat-reflective layer to reduce glare. Best for: renters or temporary setups where quick, tool-free installation is valued. Caution: the product relies on the user’s trimming accuracy for a perfect fit, which may affect blackout performance if mis-trimmed.
Why selected: Easy, tool-free installation and straightforward trimming make this a practical choice for quick updates on multiple arches or temporary spaces.
Maritown Arch Window Shade White 36×18

Overview: A low-profile option with four available sizes and five color choices, including white. Built-in silver coating improves light and heat blocking, with a double-sided tape setup to simplify installation. Best for: spaces where a balance of price, color variety, and arch fit is needed. Caution: edge light leakage can occur on non-half-round installations if not trimmed to the correct radius.
Why selected: Value-driven choice that covers common arch sizes while offering color options to match decor, plus a two-sided design for even performance from either side.
Buying Guide
What to consider when choosing arch moon shades
- Radius compatibility: Confirm the window’s radial measurement aligns with the shade’s supported radius (common ranges cover 6–24″ and 6–36″).
- Installation method: Tool-free options with double-sided tape are ideal for renters; drilling-free designs work best for temporary installations.
- Material and blackout: Cellular honeycomb fabrics commonly deliver both light blocking and heat insulation, while pleated fabrics focus on light control and privacy.
- Fit and trimming: Some shades are easily trimmed to fit irregular arches; others require careful measurement and, in some cases, professional trimming.
- Color and glare: Lighter colors reflect heat but may show dust more readily; darker shades hide stains and reduce glare but can show lint.
Frequently Asked Questions
- What is the typical radius range for arch moon shades?
Answer: Many products cover radii from 6 to 24 inches, while some models support up to 36 inches for larger half-circle openings. - Can these shades be installed without tools?
Answer: Yes, several options include double-sided tape and no-drill installation for tool-free mounting. - Are these shades suitable for very large arch windows?
Answer: Some models accommodate larger radii (up to 36″), but verify the exact width and radius match before purchase. - Do these shades provide full blackout?
Answer: Cellular blackout shades with aluminum foil backing offer stronger blackout and privacy protections than standard pleated designs. - Can shades be trimmed to fit irregular arches?
Answer: Many products offer trimming to fit irregular arches; check the manufacturer guidance for precise steps. - Are there color options beyond white?
Answer: Several models are available in white, with options in beige, gray, and other colors to suit decor.