Joydeco JD21018-BL-100 Blackout Sliding Door Curtain, 100 × 84 in

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Product guide

Joydeco JD21018-BL-100 Blackout Sliding Door Curtain, 100 × 84 in

Blackout: Joydeco JD21018-BL-100 is a black polyester curtain listed at 100 inches wide by 84 inches long, designed for sliding doors and room division. The listing claims it blocks over 75% of sunlight and glare, while customer feedback is favorable overall but mixed on measurement accuracy.

At a glance

Manufacturer claims the curtain blocks over 75% of sunlight and outdoor glare and blocks 90% of UV rays.
Grommet top is intended to make installation on a compatible curtain rod straightforward.
Machine washable according to the listed care instructions.
The listing describes thermal insulation for use across seasons.

Price

$20.78Save 20%

Reference price: ~~$25.99~~

Price checked: Nov 14, 2026

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Pros and cons

Pros

Wide 100-inch panel suits buyers seeking a single broad curtain for a sliding door or room divider.
Grommet hanging and a listed 1.6-inch rod fit provide installation details to compare with existing hardware.
Machine-washable polyester offers a straightforward stated care method.

Cons

The listing specifies that the curtain is not water resistant, so it is unsuitable where water resistance is needed.

Technical specifications

15 specifications

Identity
Brand	Joydeco
Model	JD21018-BL-100

Dimensions and installation
Dimensions listed	84"L x 100"W
Hanging style	Grommet
Fits rod size	1.6 inches
Size and quantity listed	100"W x 84"L (Pack of 1)

Materials and protection
Material listed	Polyester
Color	Black
Opacity	Blackout
Water resistance listed	Not Water Resistant
Additional features listed	Blackout, Privacy, Stain Resistant, Thermal Insulated, Wrinkle Free

Care and use
Care instructions	Machine Wash
Recommended use	Indoor
Style	Modern
Pattern	Solid

What to know before buying

Listing details to confirm

The manufacturer claims over 75% sunlight blocking and 90% UV blocking, but these are different listed performance figures and should not be treated as equivalent. Customer feedback also includes both satisfactory sizing and reports of measurements being off, so confirm the actual panel dimensions and desired coverage before ordering.

What’s in the box

Included

Grommet

Who is it for?

A good fit for

Buyers seeking a wide black curtain for an indoor sliding door, doorway, or room divider.
People who want a grommet-top panel and can confirm that its listed dimensions suit their opening.
Buyers prioritizing privacy and reduced incoming light, while recognizing the light-blocking figures are manufacturer claims.

Less suited to

Anyone needing a water-resistant curtain.
Buyers who need verified exact blackout performance or cannot accommodate a single panel listed as 100 inches wide by 84 inches long.

Joydeco JD21018-BL-100 Blackout Sliding Door Curtain, 100 × 84 in · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.7 / 5 · 3,114 ratings

5 stars84%84%
4 stars9%9%
3 stars3%3%
2 stars1%1%
1 star3%3%

Customer feedback is favorable about perceived quality, light blocking, appearance, softness, thickness, and color. Some customers say the size is right, while others report measurements being off. For a panel whose listing gives a specific 100-by-84-inch size and claims substantial light blocking, the feedback makes measurement checks especially worthwhile. Aggregate ratings are mostly five-star, but ratings alone do not establish performance or explain less favorable experiences.

Positive themes

Customers describe the fabric as soft and substantial, and report favorable impressions of appearance and color.
Customer feedback includes reports of strong light blocking.

Mixed feedback

Sizing feedback is mixed, with some customers finding the dimensions suitable and others reporting measurement discrepancies.

Frequently asked questions

How large is this curtain?

The listing gives dimensions of 84 inches long by 100 inches wide and identifies the size as a pack of one. Customer feedback is mixed on sizing, so confirm the panel measurements against your opening.

How much light does it block?

The manufacturer says it blocks over 75% of sunlight and outdoor glare, and separately claims 90% UV blocking. These are listing claims, not independently verified performance measurements.

Can it be used outdoors?

The listing recommends indoor use and specifies that the material is not water resistant, so it is not presented as a weather-resistant outdoor curtain.

How is it hung and cleaned?

It has a grommet top and is listed as fitting a 1.6-inch rod. The care instruction says machine wash.