From our customers

Real windows, in real homes

From our customers

Real windows, in real homes

Product Information

This blackout double cellular shade is what window treatment dreams are made of! If you value a good night’s sleep (who doesn’t?) then you will love the 100% light blocking fabric of this shade! The double honeycomb cells to maximize the shade's insulation and sound absorption benefits.

1/2" Double Cell Layer
SafeLock Cordless Lift System
Smart Option: Motorize

See what makes it special →

Our Deluxe Blackout Double Cell shade combines a variety of great features to bring you a workhorse window treatment that still looks good! The shade material is blackout for maximum light blocking and privacy, and features double-cell construction for maximum energy-efficiency. You can customize your shade with one of multiple lift options – including child safe cordless and convenient motorized options. Or consider top-down/bottom-up to give you even more flexibility for light and privacy control – this unique feature can also lower from the top of the shade to help distribute light further into the room without opening the entire shade or compromising privacy. It's your choice!

Get to know this shade:

Made-in-the-USA blackout fabric blocks 100% of light from passing through the shade
Double cell blackout fabric has 9/16" pleats, and an R-value of 5.0 for maximum insulation in your window
Fabric is made with "D-cell" construction to prevent the front of the shade from sagging
Color-coordinated painted aluminum headrail with matching components
Back side of fabric is white towards the street for a neutral appearance from the outside

Why you'll love this shade:

Double-cell construction maximizes this shade's energy-efficiency to reduce heat gain in summer and heat loss in winter
Insulating shade material helps lower both your AC and heating bills by reducing thermal transfer at the window
Blackout fabric is perfect for bedrooms to help you sleep better, or media rooms to eliminate unwanted light
Multiple lift options to choose from including Best for Kids™ certified SafeLock cordless or remote control motorization
Connect motorized shades to your home automation system via the optional Smart Hub
Conforms with CPSC child safety regulations

Key considerations:

Blackout fabric blocks virtually all light from passing through the shade, however some light may still be visible from around the sides of the shade
Inside mount shades must be attached to the top of the window casing; side mount not available
This shade connects to home automation systems via Hub-C only. Any Blindster shades that are compatible with Hub-C can be connected to home automation with a single Hub-C device. Shades that are listed with a different version hub cannot be controlled with Hub-C.

Great for:Living RoomBedroomOfficeKitchenMedia RoomUtility Room

Child & Pet Safety
Privacy
Insulating/Energy Efficient

Made to order, ships in 4–6 business days.

Specifications & Restrictions

Width

10 1/2" – 120"

Height

12" – 120"

Min flat space for outside mount

1 ½ inches

Min depth for inside mount (for SafeLock Cordless and SafeLock Cordless Top Down Bottom Up)

1 ¼ inches (Standard Installation) 3 inches (EZ Mount Installation)

Min depth for inside mount (continuous cord loop lift)

1 ½ inches (Standard Installation)

Min depth for inside mount (motorized lift)

1 ½ inches (Standard Installation); 3 inches (EZ Mount Installation)

Depth required for flush mount (for SafeLock Cordless and SafeLock Cordless Top Down Bottom Up)

2 ¼ inches

Depth required for flush mount (motorized lift)

2 1/8 inches (Standard Installation); 3 inches (EZ Mount Installation)

Depth required for flush mount (continuous cord loop lift)

2 1/8 inches

Headrail size (for SafeLock Cordless and SafeLock Cordless Top Down Bottom Up)

5/8 inch height x 1 7/8 inches depth

Headrail size (continuous cord loop lift and motorized lift)

1 1/2" height x 2 1/8" depth

Inside Mount Width Deduction

Approximately ¼ inch headrail deduction and 3/8 inch fabric deduction

Outside Mount

Headrail is made at ordered width; Fabric will be approximately 1/8 inch less

Bottom Rail Size (for SafeLock Cordless and SafeLock Cordless Top Down Bottom Up)

¾" high x 1 ¾" deep

Remote Control Range (Motorized lift)

80 feet

Easy Rechargeable Feature (Motorized Lift)

8.4 volt adapter plugs into standard electrical outlet, has a 13 feet black cord

Battery Lifespan for Motorized Shades

The average battery charge will last 6-12 months

Charger included for Motorized Shades

1 Charger per 5 shades on an order included

*Recharge time on a shade is 5 hours, chargers are not meant to be plugged into the shade long term.

Restrictions

Motorized lift on cellular shades is not compatible with the motorized lift on our Solar, Roller, or Zebra Sheer Shades
Continuous Cord Loop will come in 12" increments based on shade height. Cord Loops start at 24" drop.
Side Mount not available for Inside Mount, top mount only
EZ Mount not available for Outside Mount

How to Measure

How to Measure: Inside Mount

3 min read

Let's make sure an inside mount will work for your window! Using a metal tape measure, first check if you have sufficient depth:

Measure inside the window opening from the back of the window to the front of the opening where the shade would mount. The depth at the top of the window must be at least 1 1/4" for Safelock Cordless and 3/4" for Continuous Cord Loop and Motorized to mount the brackets. To have a flush mount (meaning the shade is fully recessed in the window opening) the depth must be at least 2 1/4" for Safelock Cordless and 2 1/8" for Continuous Cord Loop and Motorized. If your depth is not sufficient for mounting the brackets, please see our outside mount instructions or consider a different product.
3" of depth is needed at the top of the window opening if ordering the EZ Mount headrail.

How to Measure:

Let's start with the Width:

Measure inside of the window opening/frame from left to right to the nearest 1/8" at three places: at the top of the opening, the middle of the opening, and then the bottom of the opening. Write down all 3 measurements and circle the narrowest. If rounding is necessary, round down to the nearest 1/8". That is your ordering width.

Now, let's do the Height:

Measure the inside of the window opening/frame from the top of the opening to the bottom of the opening/sill to the nearest 1/8" in three places: on the left-hand side, the middle, and on the right-hand side. Write down all 3 measurements and circle the tallest. That is your ordering height.

Note: Always provide us with the actual measurement of the window opening. We will make the necessary deduction of approximately 1/4" to your shade's headrail and 3/8" to the fabric width to allow room for installation and for proper movement of the shade within the window opening. No deductions will be made to your height.

How to Measure: Outside Mount

3 min read

Before you start measuring, decide where above your window opening you want to mount your shade. You will need at least 1" of flat vertical space for Safelock Cordless and 1 1/2" of flat vertical space for Continuous Cord Loop and Motorized above the window to mount the brackets. The shade can be installed directly above the window opening, or higher up to give the appearance of a larger window and to have more clear space in the window when the shade is raised.

If you have trim around the window, you can mount the shade above the trim, directly on the trim (if you have the required minimum flat space for the brackets), or to the sides of the trim if you do not have enough mounting space above the window or on the trim itself. See the directions below for how you'd like to install your shade.

If you do not have sufficient vertical space for mounting the brackets, please see our inside mount instructions or consider a different product.

Width:

Looking at your window and surrounding wall, decide what area you would like to cover. We recommend the shade extends about 2" on each side of the window opening for the best light control and appearance.
Using a metal tape measure, measure from left to right including your desired extra space on each side of the window—that is your ordering width.

Height:

Consider how far above the window you would like to install your shade but at least starting with the minimum vertical space referenced above. The shade can be positioned higher up to give the appearance of a larger window and to have more clear space in the window when the shade is raised.
Measure from the top of where you will mount the shade on the wall down to where you want the bottom of the shade to be, using the same extra space below your window opening as you used above; if you have a protruding windowsill, measure down to the top of the sill. That is your ordering height.

Width:

Looking at your window and surrounding wall, decide what area you would like to cover. We recommend the shade extends about 2" on either side of the window opening for the best light control and appearance. You can also choose to have the shade the same width as your window trim.
Using a metal tape measure, measure from left to right including any desired extra space on each side of the window—that is your ordering width.

Height:

Consider how far above the window you would like to install your shade but at least starting with the minimum vertical space referenced above. The shade can be positioned higher up to give the appearance of a larger window and to have more clear space in the window when the shade is raised.
Measure from the top of where you will mount the shade on the wall down to where you want the bottom of the shade to be, using the same extra space below your window opening as you used above, or to the bottom edge of the trim if you prefer; if you have a protruding windowsill, measure down to the top of the sill. That is your ordering height.

Note: We provide complimentary spacer blocks upon request. These go behind the installation brackets to position the shade away from the wall and prevent the shade from hitting the frame. Spacer blocks add an additional 3/8" of depth for installation.

Width:

Confirm that the height of your trim is at least the minimum height required for installing the mounting brackets. At the top of your window, use a steel measuring tape and measure from outer edge to outer edge of the trim. That is your ordering width.

Height:

Measure from the top of your trim to the bottom of your trim or to the top of the windowsill if you have a protruding sill. That is your ordering height.

Width:

Using a metal tape measure, measure left to right from the outside edge of the trim piece that goes around the glass to the other outside edge. That is your ordering width. However, if you have space, it is best to order the shade about 2" wider for better light control.

Height:

Consider how far above the window trim piece you would like to install your shade but at least starting with the minimum vertical space referenced above. Measure down to where you want the bottom of the shade to be, using the same extra space below the window trim piece as you used above. That is your ordering height.

Note: We carry complimentary hold-downs (door brackets) which can be requested during the ordering process. These should be installed for a successful door mount as they secure the shade at the bottom of the door so that it does not swing when the door opens and closes.

How to Measure: Inside Mount

3 min read

Let's make sure an inside mount will work for your window! Using a metal tape measure, first check if you have sufficient depth:

Measure inside the window opening from the back of the window to the front of the opening where the shade would mount. The depth at the top of the window must be at least 1 1/4" for Safelock Cordless and 3/4" for Continuous Cord Loop and Motorized to mount the brackets. To have a flush mount (meaning the shade is fully recessed in the window opening) the depth must be at least 2 1/4" for Safelock Cordless and 2 1/8" for Continuous Cord Loop and Motorized. If your depth is not sufficient for mounting the brackets, please see our outside mount instructions or consider a different product.
3" of depth is needed at the top of the window opening if ordering the EZ Mount headrail.

How to Measure:

Let's start with the Width:

Measure inside of the window opening/frame from left to right to the nearest 1/8" at three places: at the top of the opening, the middle of the opening, and then the bottom of the opening. Write down all 3 measurements and circle the narrowest. If rounding is necessary, round down to the nearest 1/8". That is your ordering width.

Now, let's do the Height:

Measure the inside of the window opening/frame from the top of the opening to the bottom of the opening/sill to the nearest 1/8" in three places: on the left-hand side, the middle, and on the right-hand side. Write down all 3 measurements and circle the tallest. That is your ordering height.

How to Measure: Outside Mount

3 min read

If you do not have sufficient vertical space for mounting the brackets, please see our inside mount instructions or consider a different product.

Width:

Looking at your window and surrounding wall, decide what area you would like to cover. We recommend the shade extends about 2" on each side of the window opening for the best light control and appearance.
Using a metal tape measure, measure from left to right including your desired extra space on each side of the window—that is your ordering width.

Height:

Consider how far above the window you would like to install your shade but at least starting with the minimum vertical space referenced above. The shade can be positioned higher up to give the appearance of a larger window and to have more clear space in the window when the shade is raised.
Measure from the top of where you will mount the shade on the wall down to where you want the bottom of the shade to be, using the same extra space below your window opening as you used above; if you have a protruding windowsill, measure down to the top of the sill. That is your ordering height.

Width:

Looking at your window and surrounding wall, decide what area you would like to cover. We recommend the shade extends about 2" on either side of the window opening for the best light control and appearance. You can also choose to have the shade the same width as your window trim.
Using a metal tape measure, measure from left to right including any desired extra space on each side of the window—that is your ordering width.

Height:

Consider how far above the window you would like to install your shade but at least starting with the minimum vertical space referenced above. The shade can be positioned higher up to give the appearance of a larger window and to have more clear space in the window when the shade is raised.
Measure from the top of where you will mount the shade on the wall down to where you want the bottom of the shade to be, using the same extra space below your window opening as you used above, or to the bottom edge of the trim if you prefer; if you have a protruding windowsill, measure down to the top of the sill. That is your ordering height.

Width:

Confirm that the height of your trim is at least the minimum height required for installing the mounting brackets. At the top of your window, use a steel measuring tape and measure from outer edge to outer edge of the trim. That is your ordering width.

Height:

Measure from the top of your trim to the bottom of your trim or to the top of the windowsill if you have a protruding sill. That is your ordering height.

Width:

Using a metal tape measure, measure left to right from the outside edge of the trim piece that goes around the glass to the other outside edge. That is your ordering width. However, if you have space, it is best to order the shade about 2" wider for better light control.

Height:

Consider how far above the window trim piece you would like to install your shade but at least starting with the minimum vertical space referenced above. Measure down to where you want the bottom of the shade to be, using the same extra space below the window trim piece as you used above. That is your ordering height.

How to Install

How to Install: Inside Mount

2 min read

Let's make sure you have what you need!

What came with your blinds?

Installation brackets
Cord tensioner bracket & instruction pack (cord loop lift only)*
Clear plastic insert & cordless lift handle (cordless lift only)*
#6 hex head screws (one per bracket mounting hole)

What else will you need in order to complete the installation?

Rechargeable drill with 3/32" drill bit & ¼" hex nut driver bit
Phillips screwdriver
Pencil
Tape measure
Ladder

*If applicable to your order.

Download the PDF below for a complete step by step guide on how to install your inside mount blinds based on your lift type and for more information on how many brackets are required for your order.

Download printable instructions (PDF)

How to Install: Outside Mount

4 min read

Let's make sure you have what you need!

What came with your blinds?

Installation brackets
Cord tensioner bracket & instruction pack (cord loop lift only)*
Clear plastic insert & cordless lift handle (cordless lift only)*
Spacer blocks*
Hold down brackets*
#6 hex head screws (one per bracket mounting hole)

What else will you need in order to complete the installation?

Rechargeable drill with 3/32" drill bit & ¼" hex nut driver bit
Phillips screwdriver
Pencil
Tape measure
Ladder

*If applicable to your order.

Download the PDF below for a complete step by step guide on how to install your outside mount blinds based on your lift type and for more information on how many brackets are required for your order.

Download printable instructions (PDF)

How to Install: Inside Mount

2 min read

Let's make sure you have what you need!

What came with your blinds?

Installation brackets
Cord tensioner bracket & instruction pack (cord loop lift only)*
Clear plastic insert & cordless lift handle (cordless lift only)*
#6 hex head screws (one per bracket mounting hole)

What else will you need in order to complete the installation?

Rechargeable drill with 3/32" drill bit & ¼" hex nut driver bit
Phillips screwdriver
Pencil
Tape measure
Ladder

Download printable instructions (PDF)

How to Install: Outside Mount

4 min read

Let's make sure you have what you need!

What came with your blinds?

Installation brackets
Cord tensioner bracket & instruction pack (cord loop lift only)*
Clear plastic insert & cordless lift handle (cordless lift only)*
Spacer blocks*
Hold down brackets*
#6 hex head screws (one per bracket mounting hole)

What else will you need in order to complete the installation?

Rechargeable drill with 3/32" drill bit & ¼" hex nut driver bit
Phillips screwdriver
Pencil
Tape measure
Ladder

Download printable instructions (PDF)

Questions & Answers (129)

How do I order the corded bottom up top down option?
Asked by Christine · October 16, 2026
Hi Christine, thank you for your question! The top down bottom up option is only available with the cordless lift type or motorized lift type. If you have any further questions, please feel free to give us a call, start a live chat or send us an email!
Answered by Blindster · October 16, 2026
Is there any way you know of getting 100% blackout? Ours still has this 1/8" gap that lets in the light. When you have to go to bed early the sun is a problem. We have tried some of the only things but they area just too wide with the magnet for the space. I would like it in the back also, not covering the front of the blind.
Asked by Sarah · October 11, 2026
Hi Sarah, thank you for your question! Unfortunately, with inside-mounted shades, a small gap around the sides is expected because of the width deductions needed for proper installation. We don't currently offer a product designed to cover that gap from behind the shade. An outside mount may be worth considering, as it allows the shade to extend beyond the window opening and helps reduce light coming in around the sides. Let us know if you have any further questions!
Answered by Blindster · October 13, 2026
Hello! is it possible to use the deluxe blackout double cellular shades in bathrooms? thanks
Asked by Dayana · October 6, 2026
Hi Dayana! Yes, cellular shades can be used in a bathroom, but we would recommend against them if the bathroom doesn't have good ventilation. Since bathrooms can have higher levels of moisture and humidity, a faux wood window treatment is typically a better choice for this type of space. If your bathroom is well ventilated and stays relatively dry, a cellular shade may be an option, but faux wood would be our preferred recommendation. Let us know if you have any further questions!
Answered by Blindster · October 9, 2026

See all 129 questions Ask a question

Reviews4.7out of 5based on 564 reviews

4.7

Based on 564 reviews

Value of Product: 4.4 out of 5
Quality of Product: 4.8 out of 5
Ease of Installation: 4.7 out of 5

Write a review

What customers say

Summarized by AI from customer reviews

Customers praise the excellent quality and durability of these shades, noting their superior blackout performance and sleek appearance that holds up reliably over time. The product's robust construction and dependable operation have earned consistent high praise, with many customers so satisfied they've purchased additional units for other rooms. The combination of quality craftsmanship and reliable performance makes these shades a trusted choice that customers confidently recommend to others.

564 reviews

ShowSort by

Good blinds, setup instructions could be better
The blinds themselves are good. The blinds themselves are blackout, however, naturally it's impossible to fully insulate an in-wall mount, and a tiny amount of light does get in. My only issue is with the installation instructions. In the package, the first set you see are not for the onew you actually buy. Furthermore, the instructions to actually install the blinds (not the upper portion) are quite unclear.
Value of Product
4 out of 5
Quality of Product
5 out of 5
Ease of Installation
1 out of 5
Edward, New York City, US · November 7, 2026
Great Value & Customer Service
Ordering these top-down bottom-up shades was quite easy. I definitely do recommend using their free swatch service to evaluate colors in person before completing your order. Turnaround time was fast, my DIY installation was straightforward, and the shades themselves operate and look good in service. Very satisfied with this purchase. My only beefs are minor: I wish they offered a better selection of colors/patterns/materials and the website is somewhat wonky to use. I also should warn folks who have arthritis in their hands (like me) to reconsider purchasing this style of blind. The units' little buttons require a surprising amount of pressure to operate the shades.
Value of Product
5 out of 5
Quality of Product
4 out of 5
Ease of Installation
5 out of 5
Response from Blindster
We truly appreciate you taking the time to share your experience, Tami! It's wonderful to hear that you're enjoying your new shades and that everything from ordering to installation went smoothly. We're especially glad you found our free sample service helpful! We also appreciate your suggestions regarding our color and material selections, website experience, and the button operation. We understand how important ease of use is when choosing window treatments, and your feedback gives us helpful insight into where we can improve. Thank you for trusting Blindster with your purchase! We hope you continue enjoying your new shades.
Tami, Indianapolis, US · October 20, 2026
These blinds are beautiful, well made and easy to install. I will be doing the rest later on.
Response from Blindster
Thank you, Tom, for sharing your experience! We're thrilled that your new shades exceeded your expectations and that you're happy with their appearance and craftsmanship. We appreciate your business and can't wait to be part of your next window treatment project. Thank you for trusting Blindster with your home!
Tom · October 15, 2026
Value of Product
4 out of 5
Quality of Product
5 out of 5
Ease of Installation
5 out of 5
Sarah, Westborough, US · October 9, 2026
Everything fine but shade has some damage
Value of Product
5 out of 5
Quality of Product
5 out of 5
Ease of Installation
5 out of 5
Response from Blindster
Hi George! Thank you for your feedback. While we're glad everything else went smoothly, we're sorry to hear that your shade has some damage. We'd appreciate the opportunity to look into this and help get things resolved. A member of our customer service team will be contacting you soon to assist further. Thank you for choosing Blindster!
George, New York City, US · October 5, 2026
Garage Security and Massive Heat Relief
Just got these installed and so far they appear to be exactly what I needed and expected. These window get full sun in the summer afternoons and hoping these help to significantly reduce the temps in my garage. Time will tell!
Value of Product
5 out of 5
Quality of Product
5 out of 5
Ease of Installation
5 out of 5
Response from Blindster
Hi John, thank you for sharing your experience! We’re glad to hear the Deluxe Blackout Double Cellular Shades are looking like what you needed and that you’re hopeful they’ll help with the garage temps. If you have any questions down the line, feel free to reach out.
John, Georgetown, US · October 1, 2026

See all 564 reviews

Let's make sure an inside mount will work for your window! Using a metal tape measure, first check if you have sufficient depth:

Measure inside the window opening from the back of the window to the front of the opening where the shade would mount. The depth at the top of the window must be at least 1 1/4" for Safelock Cordless and 3/4" for Continuous Cord Loop and Motorized to mount the brackets. To have a flush mount (meaning the shade is fully recessed in the window opening) the depth must be at least 2 1/4" for Safelock Cordless and 2 1/8" for Continuous Cord Loop and Motorized. If your depth is not sufficient for mounting the brackets, please see our outside mount instructions or consider a different product.
3" of depth is needed at the top of the window opening if ordering the EZ Mount headrail.

How to Measure:

Let's start with the Width:

Measure inside of the window opening/frame from left to right to the nearest 1/8" at three places: at the top of the opening, the middle of the opening, and then the bottom of the opening. Write down all 3 measurements and circle the narrowest. If rounding is necessary, round down to the nearest 1/8". That is your ordering width.

Now, let's do the Height:

Measure the inside of the window opening/frame from the top of the opening to the bottom of the opening/sill to the nearest 1/8" in three places: on the left-hand side, the middle, and on the right-hand side. Write down all 3 measurements and circle the tallest. That is your ordering height.

Color: Snow

$ - Essential

$ - Essential

Mount: Not selected

Mount: Not selected

Size: 24" W × 36" H

Lift Type: Not selected

Lift Type: Not selected

Installation Type: Standard Installation

Installation Type: Not selected

Door Brackets (Hold Downs): No Door Brackets

Door Brackets (Hold Downs): No Door Brackets

Name your window

From our customers

From our customers

Product Information

Specifications & Restrictions

Restrictions

How to Measure

How to Measure: Inside Mount

How to Measure: Outside Mount

Above the Window (No Trim)

Above The Trim

On The Trim

Door Mount

How to Measure: Inside Mount

How to Measure: Outside Mount

Above the Window (No Trim)

Above The Trim

On The Trim

Door Mount

How to Install

How to Install: Inside Mount

How to Install: Outside Mount

How to Install: Inside Mount

How to Install: Outside Mount

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How to Measure for Outside Mount Cellular Shades

Cellular Shades - The Choice for Maximum Versatility

Cordless Blinds and Shades

Motorized Blinds and Shades

How to Install Deluxe Blackout Double Cellular Shades

How They're Made - Cellular Shades

Questions & Answers (129)

Reviews4.7out of 5based on 564 reviews

What customers say

Good blinds, setup instructions could be better

Great Value & Customer Service

Garage Security and Massive Heat Relief

Customers also bought (24" × 36")

What customers say

Good blinds, setup instructions could be better

Great Value & Customer Service

Garage Security and Massive Heat Relief

From our customers

How to Measure: Inside Mount

How to Measure: Outside Mount

Above the Window (No Trim)

Above The Trim

On The Trim

Door Mount

How to Install: Inside Mount

How to Install: Outside Mount

$ - Essential

Mount: Not selected

Lift Type: Not selected

Installation Type: Standard Installation

Door Brackets (Hold Downs): No Door Brackets