The best half-circle window covering depends on the arch radius, measured width, and how much light you want to block. The MYshade 18-inch-radius options are suited to smaller arches, while its 36-inch version and Changshade’s 24-inch-radius shade serve larger stated radius ranges. For filtered light instead of blackout, the Jlong pleated shade is the light-filtering choice. Measure the window carefully and compare its shape and dimensions with the product details before ordering.
| Product | Best For | Light Control | Stated Radius Range |
|---|---|---|---|
| MYshade Black, 36 by 18 inches | Smaller arches; black fabric | Blackout | 6–18 inches |
| Changshade, 24-inch radius | Arches up to 24-inch radius | Blackout | 6–24 inches |
| MYshade White, 72 by 36 inches | Larger arches | Blackout | 6–36 inches |
| MYshade White, 36 by 18 inches | Smaller arches; white fabric | Blackout | 6–18 inches |
| Jlong Pleated Shade | Filtered daylight | Light filtering | Not specified |
MYshade Black 36-by-18-Inch Arch Shade
This MYshade shade is best for a smaller half-circle window when a black fabric covering and room-darkening function are priorities. Its listed size is 36 inches wide by 18 inches high, and the product description says it is designed for arched windows with radii from 6 to 18 inches. The non-woven honeycomb fabric has laminated aluminum foil backing for blackout and privacy.
It can be trimmed for an irregular arch, and included accessories are intended to help prevent tilting or falling. Double-sided tape enables installation without tools. Choose this option if its stated dimensions and radius range suit your window. A limitation is that the black color may not match every room’s trim or decor.
Changshade 24-Inch-Radius Blackout Shade
Changshade is best for buyers whose half-moon or half-circle window has a radius within the stated 6-to-24-inch range. The shade uses non-woven fabric with laminated aluminum foil backing for blackout and privacy. Its cut-to-fit design is intended to accommodate irregularly shaped arches, offering more radius coverage than the listed 18-inch-range options.
The set includes accessories to help keep the shade from tilting or falling, plus strong double-sided tape for tool-free installation. Choose it if its radius range matches your arch and you want blackout coverage. The product details do not state a width and height in the supplied listing information, so confirm the available size and dimensions before purchase.
MYshade White 72-by-36-Inch Arch Shade
This MYshade option is best for a larger arch that needs blackout coverage. The listed size is 72 inches wide by 36 inches high, and the manufacturer describes it for arched windows with radii from 6 to 36 inches. Its non-woven cellular fabric has laminated aluminum foil film for light blocking and privacy. The white fabric may be a better visual fit than the black option for some interiors.
The shade can be trimmed for an irregular arch, and the included accessories and double-sided tape are intended to support tool-free installation and reduce tilting or falling. Choose this model when the larger stated dimensions and radius range fit your window. Because trimming changes the shade, measure carefully before cutting.
MYshade White 36-by-18-Inch Arch Shade
This is the white-fabric counterpart to MYshade’s listed 36-by-18-inch black shade. It is best for smaller half-circle windows with a radius from 6 to 18 inches when blackout and privacy are desired. The non-woven honeycomb construction includes laminated aluminum foil film, and the product description says the shade can be trimmed to fit an irregular arch.
Included accessories are designed to help prevent tilting or falling, while double-sided tape allows installation without complex tools. Choose this version if white is a better match for the room than black. Its stated radius range is limited to 18 inches, so it may not suit a larger arch.
Jlong Half-Circle Light-Filtering Shade
Jlong is best for buyers who want to soften strong sunlight rather than block it completely. Its non-woven pleated fabric is described as dustproof and durable, filtering light and reducing glare while helping protect furniture and floors from UV fading. The product listing names arched, circular, and square windows as possible applications.
Installation uses adhesive tape and does not require tools. Choose this model for filtered daylight in spaces such as living rooms, kitchens, or offices. Unlike the other selections here, it is described as light filtering, not blackout. The supplied product details do not specify a radius range or dimensions, so confirm sizing before choosing it for a particular arch.
Buying Guide: How to Choose a Half-Circle Window Covering
How do you measure an arched window?
Measure the window’s width and height, and determine the arch radius using the method appropriate to its shape. Compare those measurements with the product’s listed size and stated radius range. Do not assume that a shade’s ability to be trimmed means it will fit every arch; check the product instructions and available dimensions before cutting or attaching it.
Should you choose blackout or light filtering?
Choose a blackout option when privacy and blocking light are the main goals. MYshade and Changshade describe laminated aluminum foil backing for blackout coverage. Choose a light-filtering shade when you want to reduce glare while retaining softer daylight; the Jlong listing describes this function. Light filtering should not be treated as equivalent to blackout.
What installation method works for your window?
The featured shades use double-sided or adhesive tape for tool-free installation. This can be useful when avoiding drilling is important. Check the product’s installation guidance and the surface where the tape will attach. Several listings also mention accessories to help prevent tilting or falling, but careful placement and fit remain important.
Does color or fabric matter?
Compare the shade color with the room and window trim. The MYshade options listed here come in black or white, while the product details emphasize non-woven fabric. Consider the light-control goal alongside appearance: a blackout shade prioritizes blocking light, while a light-filtering pleated shade permits more daylight.
Frequently Asked Questions
Can these shades be used on irregular arches?
Some listings say the shades can be trimmed to fit irregularly arched windows. Check the stated radius range and product instructions before modifying a shade.
Which product is listed for the largest radius?
The MYshade white 72-by-36-inch model is listed for arched windows with radii from 6 to 36 inches.
Which option filters light instead of blocking it?
The Jlong pleated shade is described as light filtering. The MYshade and Changshade options are described as blackout shades.
Do the featured shades require drilling?
The product descriptions specify adhesive or double-sided tape installation without tools. Follow each product’s installation directions.
Are the listed products made for every half-circle window size?
No. Their stated dimensions and radius ranges differ, and the Jlong listing does not provide a radius range or dimensions in the supplied details. Measure your window and verify fit before purchase.