Best Half Circle Window Blinds for Arched Windows: Top Picks and Buying Guide

Half circle or half moon window blinds are designed to fit arched windows and offer a blend of light control, privacy, and style. This article highlights five reputable options that fit radius arches from 6 to 36 inches, are easy to install, and provide room-darkening or light-filtering performance. Each product is evaluated on blackout capability, material quality, installation ease, and fit for curved window frames. Use the buying guide below to compare sizes, mounting options, and durability to find the best half circle window blind for your space.

Summary Of Selected Products

Product Brand Approx. Fit Key Feature
Arch Window Shades Half Circle, 72″W x 36″H MYshade 36″ radius Blackout cellular, cordless, no drill, easy install
Arch Window Shade Blackout, 36×18 Maritown 36″ x 18″ Two-sided color, no drill, strong double-sided tape
Arch Window Shades Half Circle, 48″W x 24″H MYshade 36″ radius Light blocking, cordless, no tools
HOMEDEMO Arch Window Shade, 48″ x 24″ HOMEDEMO Half moon, 24″ radius Velcro removable, 100% blackout, no drill
Grandekor Arch Window Shade, 48″ x 24″ Grandekor Radius 24″ Honeycomb, DIY cut, white finish

Myshade Arch Window Shades Half Circle Blackout Cordless 72″x36″

MYshade Arch Window Shades Half Circle White 72x36

Check Price on Amazon

MYshade Arch Window Shades use a durable non-woven fabric layered with laminated aluminum foil to deliver full blackout and privacy. The half round shade fits arched windows with a 36-inch radius, covering radii from 6 to 36 inches. A key benefit is its tool-free installation, supported by sturdy double-sided tape and a set of accessories to prevent tilting or falling. The design is cordless for a clean appearance and safer operation, making it a practical choice for bedrooms or media rooms that require complete darkness when needed.

The product is easy to trim to fit irregular arches and ships with components that simplify alignment and secure attachment. Reviewers typically note solid light control and a neat, minimalist look that complements modern window framing. This option is well-suited for homeowners seeking a high blackout level with a straightforward, drill-free setup.

Arch Window Shade Blackout Half Circle Moon, 36×18

Arch Window Shade Blackout Moon 36x18

Check Price on Amazon

Maritown’s Arch Window Shade offers multiple sizes and colors to fit diverse decors. The product line includes half-round shades in 12×24, 18×36, 24×48, 30×60, and 36×72 inches, with five color choices. It uses a thick non-woven fabric with a built-in silver coating for effective light and heat blocking. The back is white for a clean look from the exterior, while installation relies on a fixed arched bracket and strong double-sided tape, enabling a tool-free setup that resists tilting or detaching. The dual-color feature adds versatility for coordinating with room aesthetics.

Overall, this option emphasizes flexible sizing, a robust light-blocking profile, and a straightforward installation method. The two-sided color approach can appeal to buyers who want a bright exterior look with a dark interior, though some may prefer deeper blackout in very bright rooms. As with all no-drill solutions, alignment accuracy matters for edge-to-edge coverage.

Myshade Arch Window Shades Half Circle White, 48×24

MYshade Arch Window Shades 48x24 White

Check Price on Amazon

The half circle shade from MYshade in a 48″W by 24″H size shares the same blackout-focused construction as the larger model, featuring a durable non-woven fabric with laminated aluminum foil for privacy protection. The 24-inch radius suits arched openings within the 6-24 inch range. It is trimmed easily for an exact fit on irregular arches, and the kit includes accessories and double-sided tape to ensure a stable, tool-free installation. The cordless design maintains a clean window line and reduces the risk of accidental pull-downs by children or pets.

For spaces needing a lower profile look with reliable darkness, this size provides a balanced option between coverage and light control. It does not require drilling, which is a compelling benefit for renters or those who want to avoid permanent mounting. Note that edge-to-edge blackout requires careful measurement and proper adherence of the tape and brackets during installation.

HOMEDEMO Arch Window Shade Blackout, 48×24

HOMEDEMO Arch Window Shade 48x24

Check Price on Amazon

HOMEDEMO’s arch window shade emphasizes Velcro-based removal for cleaning, using adhesive Velcro strips instead of traditional double-sided tape. It delivers 100% blackout due to a reflective aluminum foil layer and a fade-resistant polyester fabric, offering both excellent privacy and insulation benefits. The kit includes two Velcro strips, a support bracket, a measuring tape, and two clips, enabling quick, tool-free installation on arched windows. This model is designed for easy detachment for cleaning and maintenance, making it a practical option in homes where periodic shade removal is desired.

When evaluating this option, consider the long-term adhesive performance of Velcro in high-humidity areas and the packing of the kit during installation. If you frequently reposition or clean the shade, removable mounting is advantageous. For permanent fixtures, some users may prefer a more seamless look with a fixed mounting system.

Myshade Arch Window Shades Half Circle Blackout Black 72×36

MYshade Arch Window Shades Black 72x36

Check Price on Amazon

This variant of the MYshade half circle shade adds a black fabric option to its line, offering the same 36-inch radius and blackout performance as the white version. The product maintains the non-woven fabric construction with laminated aluminum foil for total privacy and room-darkening effects. It is designed for arched windows with radii from 6 to 36 inches, and features a tool-free installation approach with double-sided tape and installation accessories. The black finish can provide a dramatic contrast for modern interiors and can help reduce glare more aggressively in bright environments.

As with other MYshade arched shades, trimming is possible for precise sizing. The overall durability and ease of use make it a solid choice for both bedrooms and media rooms where complete light control is a priority, while maintaining a streamlined aesthetic.

Buying Guide: Key Purchase Considerations For Half Circle Window Blinds

  • Fit and radius: Measure your arch radius (in inches) and confirm the product supports radii within 6–36 inches. Some options specify a fixed radius (e.g., 24″ or 36″), while others offer a range that accommodates various arches. Accurate sizing prevents light leakage and ensures a neat edge finish.
  • Light control level: If you need full blackout for sleeping or media viewing, choose products explicitly labeled as blackout and with a reflective or dense fabric. If you prefer some natural light, a light-filtering model may suit better.
  • Installation method: No-drill or tool-free options are ideal for renters. Check whether mounting relies on double-sided tape, Velcro, fixed brackets, or a combination. Confirm if tape or Velcro adhesive adheres well to your window frame material (wood, vinyl, PVC).
  • Durability and maintenance: Look for non-woven fabric with a durable finish and a foil-backed layer for insulation and privacy. Consider whether the shade is easy to remove for cleaning and whether it includes a way to trim for exact fit.
  • Color options: A two-sided color design can offer interior-darkening flexibility (e.g., white backside for a clean exterior look). Decide whether you want a white, black, or other color on the inner side to harmonize with your room aesthetics.
  • Edge-to-edge coverage: Some products require careful alignment of the arched bracket and adhesive to prevent light leakage at the edges. Plan on a precise measurement and a clean install for optimal results.
  • Maintenance cycle: For cleaning, consider shades that offer detachable components or removable fabric. If frequent cleaning is anticipated, a design that allows easy detachment without tools may save time.
  • Budget and warranty: Compare the long-term cost of multiple components, potential replacements, and the warranty coverage. A model with robust brackets and reliable adhesives typically yields lower maintenance concerns.