20 Best Blackout Panels For Windows [2024]

Are you looking for the best blackout panels for windows? Based on expert reviews, we ranked them. We've listed our top-ranked picks, including the top-selling blackout panels for windows.

We Recommended:

# Preview Product
1 Blackout EZ - Total Sunlight Blocking Window Cover - Complete Light Block for: Living and TV Room,... Blackout EZ - Total Sunlight Blocking Window Cover - Complete Light Block for: Living and TV...
2 Rutterllow Room Darkening Blackout Curtains for Bedroom 2 Panel,Grommet Top(42x63 Inch, Black) Rutterllow Room Darkening Blackout Curtains for Bedroom 2 Panel,Grommet Top(42x63 Inch, Black)
3 NICETOWN Black Blackout Curtain Blinds - Solid Thermal Insulated Window Treatment Blackout... NICETOWN Black Blackout Curtain Blinds - Solid Thermal Insulated Window Treatment Blackout...
4 NICETOWN 100% Blackout Window Curtain Panels, Heat and Full Light Blocking Drapes with Black Liner... NICETOWN 100% Blackout Window Curtain Panels, Heat and Full Light Blocking Drapes with Black...
5 Eclipse Phoenix Absolute Zero Blackout Window Curtain Panels, Set Of 2 Eclipse Phoenix Absolute Zero Blackout Window Curtain Panels, Set Of 2
6 NICETOWN 3 Pass Microfiber Noise Reducing Thermal Insulated Solid Ring Top Blackout Window... NICETOWN 3 Pass Microfiber Noise Reducing Thermal Insulated Solid Ring Top Blackout Window...
7 LUSHLEAF Blackout Curtains for Bedroom, Solid Thermal Insulated with Grommet Noise Reduction Window... LUSHLEAF Blackout Curtains for Bedroom, Solid Thermal Insulated with Grommet Noise Reduction...
8 NICETOWN White Blackout Curtain Liners for Window - Noise Reducing Light Blocking Liner for 84 inch... NICETOWN White Blackout Curtain Liners for Window - Noise Reducing Light Blocking Liner for 84...
9 Bedsure 100% Blackout Curtains 84 inches Long - White Blackout Curtains for Bedroom 2 Panel Set,... Bedsure 100% Blackout Curtains 84 inches Long - White Blackout Curtains for Bedroom 2 Panel Set,...
10 G2000 100% Blackout Curtains for Bedroom Living Room Curtains 84 Inches Long White Curtains Room... G2000 100% Blackout Curtains for Bedroom Living Room Curtains 84 Inches Long White Curtains Room...
11 Rutterllow 100% Blackout Curtains 2 Panels - Completely Blackout Window Drapes Thermal Insulate... Rutterllow 100% Blackout Curtains 2 Panels - Completely Blackout Window Drapes Thermal Insulate...
12 ISSUNTEX Blackout Curtains for Bedroom, Thermal Insulated Window Curtains for Living Room, Noise... ISSUNTEX Blackout Curtains for Bedroom, Thermal Insulated Window Curtains for Living Room, Noise...
13 Hiasan Grommet Blackout Curtains for Bedroom, 42 x 63 Inches Length - Thermal Insulated & Light... Hiasan Grommet Blackout Curtains for Bedroom, 42 x 63 Inches Length - Thermal Insulated & Light...
14 100% Blackout Curtains Linen Textured Blackout Curtains 84 Inch Length Burlap Curtains Window... 100% Blackout Curtains Linen Textured Blackout Curtains 84 Inch Length Burlap Curtains Window...
15 BGment Blackout Curtains for Bedroom - Grommet Thermal Insulated Room Darkening Curtains for Living... BGment Blackout Curtains for Bedroom - Grommet Thermal Insulated Room Darkening Curtains for...
16 PONY DANCE Bedroom Blackout Curtains - Light Block Solid Rod Pocket Energy Efficient Thermal... PONY DANCE Bedroom Blackout Curtains - Light Block Solid Rod Pocket Energy Efficient Thermal...
17 Umbra Blackout Panel, 48 x 56 Inches, Charcoal Umbra Blackout Panel, 48 x 56 Inches, Charcoal
18 GoDear Design Deluxe 99.99% Blackout Adjustable Sliding Panel Track Blind 45.8'- 86' W x 96' H,... GoDear Design Deluxe 99.99% Blackout Adjustable Sliding Panel Track Blind 45.8"- 86" W x 96" H,...
19 Sun Zero Soho 2-pack Blackout Energy Efficient Grommet Curtain Panel Pair, 54' x 84', Pearl Sun Zero Soho 2-pack Blackout Energy Efficient Grommet Curtain Panel Pair, 54" x 84", Pearl
20 BGment 100% Blackout Curtains for Bedroom with Liner, Linen Textured Thermal Insulated Room... BGment 100% Blackout Curtains for Bedroom with Liner, Linen Textured Thermal Insulated Room...
Bestseller No. 1
Blackout EZ - Total Sunlight Blocking Window Cover - Complete Light Block for: Living and TV Room,...
  • FOR COMPLETE DARK ROOM BLACKOUT - Get your sleep and privacy! Works great in nurseries, children's, bed, tv, and game rooms kitchen, bathrooms, dorms,...
  • EXCLUSIVE HOOK & LOOP VELCRO FASTENING SYSTEM - Seals tight around window frame for total blackout! Better than curtains, blinds or shades and easily...
  • INSTALLS IN MINUTES - NO TOOLS REQUIRED - Scissor cuttable material and printed cutting line grid allows for quick and easy fit on windows up to...
  • HOA AND WINDOW WARRANTY COMPLIANT - White outside facing material does not heat or crack glass and the view from the street is not obvious. Looks like...
  • USE WITH EXISTING WINDOW TREATMENTS - This is not an adhesive film or static cling. It attaches to the window frame and does not affect the window....
SaleBestseller No. 2
Rutterllow Room Darkening Blackout Curtains for Bedroom 2 Panel,Grommet Top(42x63 Inch, Black)
  • Package Includes: Sold as 2 panels, measures 42” wide X 63” long each. Total 84” x 63”.
  • Grommet Top Design: RUTTERLLOW grommet blackout curtains have 6 shiny grommets, 1.6” inner diameter each, fit standard size curtains rod, look great...
  • Functions: RUTTERLLOW blackout curtains can block out 50%-95% sunlight due to different colors (Dark color works better than light color). As a...
  • Easy Care: Machine washable (in cold water) for easy care and maintenance. Do not bleach, tumble dry low and warm iron as needed.
  • More Choices: If you want a fully dark environment to ensure a sound sleep, please go check out our newer model(ASIN:B0978JK315), which are...
SaleBestseller No. 3
NICETOWN Black Blackout Curtain Blinds - Solid Thermal Insulated Window Treatment Blackout...
  • ELEGANT DESIGN: 2 panels per package. Each Blackout Curtain Panel measures 42 inches wide x 63 inches long. The NICETOWN drapery is constructed with...
  • LENGTH ADJUSTABLE: Don't worry if this blackout curtains are a few shorter than your windows. You can hang this curtain panels with rings and hooks....
  • AMAZING MATERIAL: This unique, soft and heavy-duty blackout fabric is woven with three-layer construction. The middle layer of black yarns creates a...
  • GOOD CHOICE: Perfect drapery option for anyone seeking to block daylight, take a nap, or keep sun glare off your TV. Besides, you can choose blackout...
  • NICE SERVICE: Decorate your home, high quality. Nice pre-sale and after-sale service. Your 100% satisfaction is our #1 priority. Just contact customer...
Bestseller No. 4
NICETOWN 100% Blackout Window Curtain Panels, Heat and Full Light Blocking Drapes with Black Liner...
  • Ready Made: 2 panels blackout curtains per package. Each Classic Lined Blackout Curtain measures 52" wide x 84" long (Total width is 104"). The unique...
  • Blackout Effect: The real blackout curtains on the market. Sew in black liner backing makes the drapes thick enough to completely keep out the...
  • Noise Reducing: Heavyweight Blackout Curtains can be a good sense of drape, making the window completely closed, to cut noise down. The effect of...
  • Unique Design: Blackout curtains constructed with 2 layers are all triple weave blackout fabric, balancing room temperature by insulating against...
  • Easy Care: Quality finishing will withstand years of use. Machine washable and Wash the water temperature below 86℉. Mild detergent no bleaching....
SaleBestseller No. 5
Eclipse Phoenix Absolute Zero Blackout Window Curtain Panels, Set Of 2
  • Set of 2 Eclipse Phoenix Absolute Zero Window Curtain Panels, Smoke #55327077
  • Length 84" - 100% polyester - Machine washable
SaleBestseller No. 6
NICETOWN 3 Pass Microfiber Noise Reducing Thermal Insulated Solid Ring Top Blackout Window...
  • READY MADE: Set includes 2 BLACKOUT PANELS of 42" wide x 84" length with 6 grommets top each. Quality fabric without liner feels soft and heavy.
  • SERVE WELL: Curtains impede 85%-99% light and UV rays(Dark color curtains work well). Noise-reducing, better TV viewing thanks to the innovative...
  • ENERGY SMART: Triple weave blackout fabric balances room temperature by insulating against summer heat and winter chill. Protect your furniture,...
  • GOOD TO GO: Thread trimmed and wrinkle-free, ring (1.6-inch inner diameter) fits easily with standard curtain rods. All sets for you to put them up...
  • EASY TO MAINTAIN: NICETOWN blackout curtains are made to last. Machine washable in cold water, tumble dry. Quick ironing or steam clean when needed....
SaleBestseller No. 7
LUSHLEAF Blackout Curtains for Bedroom, Solid Thermal Insulated with Grommet Noise Reduction Window...
  • 2 CURTAIN PANELS PER PACKAGE:Each set includes 2 blackout curtain panels, and each window drape with 8 elegant silver metal grommets with 1.6-inch...
  • PREMIUM BLACKOUT MATERIAL:Soft and high quality blackout curtains with advantages of 90% light blocking, this elegant window panel is crafted from...
  • LIGHT BLOCKING: These blackout curtain panels are thick, durable, and long lasting, definitely can block out bright sunlight and UV ray. Perfect...
  • ROOM DARKENING CURTAIN DRAPES: These thermal insulated curtains will make a budget noticeablely, lower your heating & cooling cost by preventing...
  • EASY TO CARE: These blackout curtains are machine washable, with warm or cold water, use mild detergent, no bleaching. Hang dry or tumble dry. Low...
Bestseller No. 8
NICETOWN White Blackout Curtain Liners for Window - Noise Reducing Light Blocking Liner for 84 inch...
  • READY MADE: Package includes 2 panels Blackout Curtain Liners, bonus drapery hooks. Each panel measures 27" wide when it is flat. It is recommended to...
  • AMAZING FABRIC: The blackout liners' material is super soft and heavily innovative triple-weave polyester fabric. High performance on 85%-99% light...
  • ENERGY SMART: Triple weave blackout fabric balances room temperature by insulating against summer heat and winter chill. Protect your furniture,...
  • UNIQUE DESIGN: You can not only attach to your existing curtain panel with drapery hooks included (Not rip through thin curtains) but also used as...
  • EASY CARE: Good quality finishing will withstand years of use. Machine washable and Wash the water temperature below 86F. Mild detergent no bleaching....
Bestseller No. 9
Bedsure 100% Blackout Curtains 84 inches Long - White Blackout Curtains for Bedroom 2 Panel Set,...
  • 100% blackout curtains: Made of triple-woven fiber, the three layers of these 100% blackout curtains are cleverly interwoven to keep out the light and...
  • What You Can Get: 2 Panels and 8 Grommets with 1.6'' inner diameter. Each panel size is 52'' x 84". Please note the darker blackout curtain works...
  • 100% Microfiber Polyester: Woven with 100% microfiber polyester, this Bedsure 100% blackout curtain has 2 thick layers which add an extra layer of...
  • Versatile Features: Room darkening curtains for the bedroom help to absorb noise and keep the bedroom at a comfortable temperature in all seasons. As...
  • Easy Care: Machine wash warm separately on a gentle cycle. Tumble dry low. Do not use any detergent with chlorine. Do not dry clean, iron or bleach.
Bestseller No. 10
G2000 100% Blackout Curtains for Bedroom Living Room Curtains 84 Inches Long White Curtains Room...
  • WHO ARE OUR TARGET CUSTOMERS? - Night shifter, day sleepers, napping kids, doctors, nurses and light-sensitive people. Especially those who are tired...
  • WHAT ARE CUSTOMER PAIN POINTS OF BLACKOUT CURTAINS? - 1) Many fake blackout curtains waste your time and money. 2) Some blackout curtains have...
  • HOW IS OUR CURTAIN DIFFERENT FROM OTHERS? - 1) We have true 100% blackout curtains. 2) New and improved thermal lining, no chemical coating. 3)...
  • WHY CHOOSE US? - G2000 100% blackout curtains will help to keep cool during the summer, and keep warm during the winter. As an added bonus, these...
  • WHAT'S IN THE PACKAGE? - 2 white blackout curtains, each panel measures 52 inches wide by 84 inches long for a total width of 104 inches. Each panel...
SaleBestseller No. 11
Rutterllow 100% Blackout Curtains 2 Panels - Completely Blackout Window Drapes Thermal Insulate...
  • Package Includes: Sold as 2 panels per package, measures 52” wide X 63” long each. Total width is 104 inches.
  • Grommet Top: RUTTERLLOW 100% blackout curtains have 8 shiny grommets top, 1.6” inner diameter each, fit standard size curtains rod, look great when...
  • Functions: As a barrier, our blackout curtains’ quality is heavy enough to insulate your home against outside thermal energy in summer. On the...
  • Unique Design: Crafted from double-layer blackout fabric. With the black liner these curtains can block out 100% sunlight & provide you a midnight...
  • Easy Care: Machine washable (in cold water) for easy care and maintenance. Do not bleach, tumble dry low and warm iron as needed.
Bestseller No. 12
ISSUNTEX Blackout Curtains for Bedroom, Thermal Insulated Window Curtains for Living Room, Noise...
  • What is Inside the Package: Each package includes a set of 2 blackout curtains; Each panel/piece measures width 42 inch by length 63 inch to cover a...
  • Blackout + Energy Saving Properties: Our curtains are able to block out 80-90 % sunlight and UV ray, which is perfect for a better sleep and afternoon...
  • Decorate with Style and Texture: These living room and bedroom curtains are made from tear resistant and high quality polyester fabrics. The curtains...
  • Reducing Noise & Enhance Privacy: Designed to provide maximum privacy, these privacy curtains are crafted from a premium textured fabric, which helps...
  • Easy to Care: These blackout curtains are machine washable in cold water, please do not bleach, tumble dry and iron at low temperature. We are here to...
SaleBestseller No. 13
Hiasan Grommet Blackout Curtains for Bedroom, 42 x 63 Inches Length - Thermal Insulated & Light...
  • Two tiebacks sewn to both sides of the curtain, help keep your curtains open with minimal effort. These heavy blackout curtains offer a contemporary...
  • These thermal curtains can block light from shining through and completely darkens your room. Effective at keeping out both chill in the winter and...
  • Hang in your entertainment room to reduce distracting outside noise, or in your bedroom for enhanced privacy and a sounder, more uninterrupted sleep....
  • Your package include a set of 2 curtain panels. Each panel measures 42 W by 63 L inch and features 6 rustproof silver grommets measured 1.6 inch in...
  • Machine wash in cold water, tumble dry on low and ironing at low temperature (if needed). Don’t bleach. Any other questions, do not hesitate to back...
Bestseller No. 14
100% Blackout Curtains Linen Textured Blackout Curtains 84 Inch Length Burlap Curtains Window...
  • Blackout Function: Double Layers Design, blocks 100 percent of light. Great for daytime sleepers, children's rooms, and nurseries.
  • Energy Efficient: Save on energy costs with the innovative thermal liner that is designed to block out cold winter drafts and absorb harsh,...
  • Design: Linen textured fabric looks elegant and more expensive. The perfect color help you find the perfect fit for your already existing decor.
  • Package: 2 Panels per package, each panel measures 50 inch Width, and has 8 Sliver Grommets with 1.6" diameter, fits for all standard curtain rods.
  • Easy Care: Machine washable in cold water, use only non-chlorine bleach when needed, tumble dry low or hang up to dry, low temperature ironing.
SaleBestseller No. 15
BGment Blackout Curtains for Bedroom - Grommet Thermal Insulated Room Darkening Curtains for Living...
  • Package Includes: Set of 2 pieces navy blue blackout curtains; Each panel measures 42 Inch wide by 63 Inch long. Suggest choose the right size after...
  • Grommet Construction: Each curtain panel has 6 silver metal grommets on top. Each grommet inner diameter is 1.6 inch, comparable with most rods. Easy...
  • Blackout Functions: Our bedroom curtains can block out sunlight, darker colors work better. Perfect for late sleepers and afternoon naps.
  • Thermal Insulated: Our energy saving curtains insulate against summer heat and winter chill to balance your room temperature, cut down energy bills....
  • Easy to care: Machine washable in gentle cycle and cold water, do not bleach. Warm iron and tumble dry at low temperatures.
SaleBestseller No. 16
PONY DANCE Bedroom Blackout Curtains - Light Block Solid Rod Pocket Energy Efficient Thermal...
  • READY MADE: Package includes 2 blackout curtain panels. 3" rod pocket top fits most standard rods. No liner, same material on both sides. Multiple...
  • SOFT FABRIC - Super heavy and soft fabric adopt the triple weave technology, panels with no liner, same color, and material on both sides.
  • LIGHT CONTROL - Stop the sunlight or the harsh street light from passing through the windows, block 85-95% light.[Dark color works better than light...
  • WISE BUDGET - Avoid your furniture and floor to be exposed to the harsh sunlight and save your heating/cooling cost. Multi-functional with super...
  • MORE CHOICE - Different styles of items can be match with it perfectly, which is perfect for home design. Start your journey of discovery now.
SaleBestseller No. 17
Umbra Blackout Panel, 48 x 56 Inches, Charcoal
  • 100% ROOM BLACKOUT IN SECONDS: Both the material and system for Complete Blackout are lab certified 100% blackout. Get a completely blacked-out room...
  • NO-DRILL REQUIRED, DAMAGE-FREE: The Complete Blackout panel seals around your window using six anchor points that peel and stick to the wall using...
  • MULTIPLE CONFIGURATIONS: Magnets sewn into the blackout window cover allow it to fold into multiple configurations
  • NEUTRAL COLOR PALETTE: Complete blackout’s carefully selected color options (available in charcoal and linen) means it will suit a variety of decors...
  • INSULATING: Thanks to is quadruple coated blackout fabric, the panel blocks varying outdoor temperatures, helping keep your room cool in summer and...
Bestseller No. 18
GoDear Design Deluxe 99.99% Blackout Adjustable Sliding Panel Track Blind 45.8"- 86" W x 96" H,...
  • 【LIGHT BLOCKING】Our blackout series sliding panel is an innovative solution to block the sunlight and heat. It can block up to 99.99% of the...
  • 【BRING THE NIGHT TO ANY ROOMS】Best for bedrooms, nurseries, dark rooms, and media/theater rooms. It also can protect furniture and floors from sun...
  • 【BALANCE FASHION WITH FUNCTIONALITY】Nature-inspired design surface with lustrous appearance plus thermal backing that can block light and create...
  • 【ADJUSTABLE】The cordless 4-rail track is adjustable anywhere from 45.8" to 86" wide. 4 panels included and the dimension of each panel is 23" wide...
  • 【STACK OPTIONS】This panel track can be mounted to the wall or ceiling and, moreover, there are 2 control stack options, you can easily slide with...
SaleBestseller No. 19
Sun Zero Soho 2-pack Blackout Energy Efficient Grommet Curtain Panel Pair, 54" x 84", Pearl
  • Blackout technology blocks out most unwanted light while enhancing privacy
  • Energy efficient design reduces energy lost through your windows by up to 40%
  • Thermal properties help keep summer heat and winter chill out of your home
  • Noise reduction up to 30% helps you get a sounder, more uninterrupted sleep
  • Built-in metal grommets fit curtain rods up to 1.5" in diameter.Pair includes 2 panels
SaleBestseller No. 20
BGment 100% Blackout Curtains for Bedroom with Liner, Linen Textured Thermal Insulated Room...
  • Package Includes: Set of 2 ivory white linen look blackout curtains with light khaki liner, thick, soft, luxury and heavy-duty; each panel measures 52...
  • Rod Pocket: Window curtains with 3 inches rod pocket on the top, suitable for most curtain rods. Easy to install and slide smoothly.
  • 100% Blackout: Our room darkening curtains can block out 100% sunlight, perfect for night shifts, late sleepers and afternoon naps. Protect floor and...
  • Thermal Insulated: Our energy saving blackout curtains insulate against summer heat and winter chill to balance your room temperature, save on energy...
  • Easy to Care: BGment blackout window curtain panels are machine washable under 86°F. Do not bleach or tumble dry. Warm iron as needed.

Having trouble finding a great blackout panels for windows?

This problem is well understood by us because we have gone through the entire blackout panels for windows research process ourselves, which is why we have put together a comprehensive list of the best blackout panels for windowss available in the market today.

After hours of searching and using all the models on the market, we have found the best blackout panels for windows for 2023. See our ranking below!

How Do You Buy The Best Blackout Panels For Windows?

Do you get stressed out thinking about shopping for a great blackout panels for windows? Do doubts keep creeping into your mind?

We understand, because we’ve already gone through the whole process of researching blackout panels for windows, which is why we have assembled a comprehensive list of the greatest blackout panels for windows available in the current market. We’ve also come up with a list of questions that you probably have yourself.

John Harvards has done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for blackout panels for windows that you consider buying. Your questions might include the following:

  • Is it worth buying an blackout panels for windows?
  • What benefits are there with buying an blackout panels for windows?
  • What factors deserve consideration when shopping for an effective blackout panels for windows?
  • Why is it crucial to invest in any blackout panels for windows, much less the best one?
  • Which blackout panels for windows are good in the current market?
  • Where can you find information like this about blackout panels for windows?

We’re convinced that you likely have far more questions than just these regarding blackout panels for windows, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.

Potential sources can include buying guides for blackout panels for windows, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible blackout panels for windows. Make sure that you are only using trustworthy and credible websites and sources.

John Harvards provides an blackout panels for windows buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information.

How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available blackout panels for windows currently available on the market.

This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:

  1. Brand Value: Every brand of blackout panels for windows has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
  2. Features: What bells and whistles matter for an blackout panels for windows?
  3. Specifications: How powerful they are can be measured.
  4. Product Value: This simply is how much bang for the buck you get from your blackout panels for windows.
  5. Customer Ratings: Number ratings grade blackout panels for windows objectively.
  6. Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their blackout panels for windows.
  7. Product Quality: You don’t always get what you pay for with an blackout panels for windows, sometimes less, and sometimes more.
  8. Product Reliability: How sturdy and durable an blackout panels for windows is should be an indication of how long it will work out for you.

John Harvards always remembers that maintaining blackout panels for windows information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.

If you think that anything we present here regarding blackout panels for windows is irrelevant, incorrect, misleading, or erroneous, then please let us know promptly!

Related Post:

FAQ:

Q: Will solar panels work during a blackout?

A: Yes, solar panels generate electricity from the sun, so they do produce electricity in the daytime during blackouts. However, unless your solar system is configured to allow you to draw power from it during a blackout, you cant draw power from your system. Most grid-tied solar systems are not configured to draw electricity during blackouts.

Q: Do Blackout curtains really work?

A: Thermal blackout curtains work well in all seasons. During winter, they provide a barrier limiting the level of cold penetrating your house. During summer, the outer layer provides a reflective effect, bouncing the sun rays to the outside and limiting heat gain.

Q: How to make blackout window treatments?

A: Blackout Insert or material large enough for your window. Blackout curtains Glue or hot glue if needed (see notes below)

Q: Which do Blackout curtains work the best for You?

A: Best for Bedroom: Eclipse Kendall Solid Blackout Curtains. Lab-tested to block over 99 percent of unwanted light and noise, Eclipse Kendall Curtains are ideal for bedrooms. The energy-efficient design can also help you cut down on heating and cooling costs. They’re 42 inches wide and come in four different lengths.