Mainstays Thermal Lined Room Darkening Sliding Glass Door Grommet Curtain Panel, 100" x 84", Black
Mainstays Thermal Lined Room Darkening Sliding Glass Door Grommet Curtain Panel, 100" x 84", Black
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Mainstays

Mainstays Thermal Lined Room Darkening Sliding Glass Door Grommet Curtain Panel, 100" x 84", Black

Mainstays Thermal Lined Room Darkening Sliding Glass Door Grommet Curtain Panel, 100" x 84", BlackMainstays Sliding Glass Door Thermal Lined Room Darkening Grommet Curtain Panel 100 x 84Mainstays Sliding Glass Door Thermal Lined Room Darkening Grommet Curtain Panel 100 x 84 in RedMainstays Sliding Glass Door Thermal Lined Room Darkening Grommet Curtain Panel 100 x 84 in GrayMainstays Sliding Glass Door Thermal Lined Room Darkening Grommet Curtain Panel 100 x 84 in BrownMainstays Blackout Energy Efficient Extra Wide Sliding Glass Door Grommet Curtain Panel with Detachable Wand in Brownstone 100 x 84Mainstays Sliding Glass Door Thermal Lined Room Darkening Grommet Curtain Panel White 100 x 84Mainstays Sliding Glass Door Thermal Lined Room Darkening Grommet Curtain Panel 100 x 84 in Blue
Size:100" W x 84" L
Actual Color:Black

Key item features

  • Door Compatibility: Designed for sliding glass doors and large windows, featuring a detachable pull wand for convenient operation.
  • Energy Efficiency: Thermal-lined construction helps reduce energy loss, keeping homes cooler in summer and warmer in winter.
  • Room Darkening: Blackout panel with thermal backing effectively blocks light, darkening the room, with darker colors offering enhanced light reduction.
  • Noise Reduction: Contributes to a quieter environment, promoting sounder and more uninterrupted sleep.
  • Material & Care: Made from 100% polyester, this single curtain panel is machine washable for easy maintenance.
  • Panel Dimensions: Measures 100 inches wide by 84 inches long, featuring a grommet-top design for rods up to 1.5 inches in diameter.
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Current price is $21.91
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Customer ratings & reviews

4.2 out of 5 stars
stars1,305 ratings701 reviews
How item rating is calculated
  1. 5 stars67% (874)
  2. 4 stars13% (165)
  3. 3 stars7% (93)
  4. 2 stars4% (54)
  5. 1 star9% (119)

Reviews summary

Pros

  • : Offers great value at this cost.
  • : Made of high-quality fabric with a smooth texture.
  • : Fits standard sliding glass and patio doors.
  • : Described as having deeper, more vibrant hues than anticipated.

Neutral

  • : Can be easy to hang, but may require ironing or steaming to remove wrinkles.

Cons

  • : May require ironing or steaming to remove wrinkles.
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Showing 1-3 of 701 reviews

Jun 8, 2025
Cheryl
Item details
Size: 100" W x 84" L
Color: Brownstone
5 out of 5 stars review

Verified Purchase

Nice looking blackout curtains, even indoors

The blackout of these curtains is true. I'm using them indoors and they're serving their purpose so far very well. They slide easily on their sturdy grommets and look nice.

Helpful?1VPCJ5WNEH1S465656756
Mar 27, 2026
Levi
Item details
Size: 100" W x 84" L
Color: White
5 out of 5 stars review

Verified Purchase

Perfect for FL Room

Perfect bright white curtains for my huge FL room windows. They have the appearance of cotton, which I like, so they don’t look like cheap polyester curtains. They certainly cut down the glare in the room and make it easier to watch TV but they aren’t completely black-out curtains. The wand makes it so much easier to open and close without having my kids touch the white curtains

Helpful?1VPCJ5WNEH1S465656756
Apr 26, 2026
BrooklynAl
Item details
Size: 100" W x 84" L
Color: Brownstone
5 out of 5 stars review

Verified Purchase

Beautiful and efficient heat blocker

Lovely curtains that exceeded my expectations. They serve as an efficient blocker of the sun's heat from my patio door and prevent the inside temperature from being affected. I highly recommend them.

Helpful?1VPCJ5WNEH1S465656756