Quiet Barrier™ MD Soundproofing Material (Sheet)

  • usa icon

    Made in USA

Quiet Barrier™ MD Soundproofing Material (Sheet)

Looking for a durable, low-profile soundproofing solution for commercial or residential use? Quiet Barrier™ MD Soundproofing Sheets block and dampen sound without getting in the way while you work. These 1/8-inch-thick sheets are ideal for use in offices, restaurants, warehouses, construction sites and nearly any other setting. This soundproofing sheet balances flexibility and rigidity, allowing users to cut it to size for installation on any flat or curved surface.

Quiet Barrier™ MD Soundproofing Sheets are one of our most popular products. These eco-friendly acoustic soundproofing sheets are available in various dimensions for any application. You can complete the installation using adhesive materials or choose sheets with pressure-sensitive adhesive (PSA) peel-and-stick functionality.

At Soundproof Cow, we always keep a full inventory of Quiet Barrier™ MD Soundproofing Sheets so customers can find the quantities they need when they need them. Order yours today!

Read More

Original price was: $74.99.Current price is: $68.99.

9499 in stock

Icon of a speech bubble with the letter i italicized in blue

Do you have questions about this product?

Call Us
soundproof cow waving

Download the Installation Guide Here

Get My Installation Guide
Weight 36 lbs
Dimensions 4 ft. x 8 ft.
Thickness 1/8 in.
Weight 32 lbs.
Coverage 32 sqft.
Pressure Sensitive Adhesive No
Quantity 1 sheet
STC Rating 27
Availability Usually ships in 1-3 business days

Quiet Barrier Soundproofing Sheets

The Quiet Barrier™ MD soundproofing sheets are our medium thickness sheets. They are 1/8 inch thick and weigh 32 pounds per 4-by-8-foot sheet. This high-density, nonporous material is one of our most popular soundproofing solutions because of its ease of use and tremendous effectiveness.

Quiet Barrier™ MD soundproofing sheets provide quality sound control in two ways. The barrier layer blocks the transmission of airborne sound like voices and outdoor noises, while the foam layer isolates and protects the barrier and dampens vibratory sound, such as the type caused by impacts or construction work. The result is a clean, ungarbled sound in any room where you choose to install it.

Quiet Barrier™ MD is environmentally friendly, so you’ll have no problem handling it, and can be cut to any size to ease your installation. If you choose the peel and stick PSA option, installation is even easier — just cut your pieces, peel off the backing and stick it in place.

Use Quiet Barrier™ MD Soundproofing sheets anywhere you need to reduce outside noise or make inside noise cleaner and clearer. These sound barrier sheets are suitable for such situations as:

  • Home recording studios
  • Commercial recording studios
  • Children’s rooms
  • Office conference rooms
  • Restaurants

These soundproof sheets are affordable and work brilliantly to control sound. You won’t find a better value anywhere when it comes to soundproofing solutions.

Which Quiet Barrier™ Soundproofing Product is Right For Me?

Quiet Barrier™ can be added to a variety of common wall / ceiling constructions to improve the sound blocking performance of the structure. Choose the right Quiet Barrier™ product based on the type of noise you are trying to prevent from entering or leaving the space. Quiet Barrier™ products perform well when trying to deter common noises with average decibel levels. These noises can be generated from voices, TV’s and stereos. If noise levels are higher than usual, typically from loud stereo systems, home theater or recording studio environments, then other products used in conjunction with Quiet Barrier™ may be necessary.

If you are trying to prevent common conversations or voices from entering or leaving a space, then choose Quiet Barrier™ MD. If you are trying to prevent TV and stereo noise from entering or leaving a space, then choose Quiet Barrier™ HD.

How Quiet Barrier™ Works:

Quiet Barrier™ products block the transmission of noise from one area to the next. The “noise source” hits the barrier and is reflected back into the room or space of origin. See figure 1. Typically, the noise is not muffled or absorbed in any way, which means that decibel level within the source room remains the same or is increased. The difference between the source noise and the transmitted noise is the sound transmission loss.

Quiet Barrier Specialty Composite Reinforced Mylar Facing Diagram




* This product is not eligible for promotional offers.

Dual soundproofing function — The mass of Quiet Barrier™ blocks sound while its flexible nature dampens sound energy, giving improved acoustic performance over competitive rigid products.

Value — Pound for pound, Quiet Barrier™ products have better noise reduction characteristics than steel and other building materials.

Low Profile — Valuable square footage is maximized. Quiet Barrier™ MD is only 1/8 in. thick and Quiet Barrier™ HD is 1/4 in. thick saving space and money.

Variety — Quiet Barrier™ soundproofing products are available in a variety of lengths and widths. Also, some Quiet Barrier™ products are available with a “peel and stick” pressure sensitive adhesive (PSA). Custom shapes and sizes available upon request.

In-stock — We stock all advertised sizes and configurations of Quiet Barrier™ in large quantities. Most products are shipped the same day they are ordered and arrive at your project in three business days.

Proven History — Over 1.5 Million square feet of Quiet Barrier™ soundproofing products have been installed in projects nationwide.


Great for the Construction Industry:

  • Broadcast Studios
  • Commercial Recording Studios
  • Commercial Theaters
  • Homes Theaters
  • Multi-family Dwellings
  • Offices
  • Recording Studios
  • Restaurants
  • Single Family Dwellings

Great for the Automotive Industry:

  • Trunk Liners in Automobiles
  • Floor Pan Liners in Automobiles

Great for the Marine Industry:

  • Cabin Carpet Underlayment
  • Cabin Wall Liner
  • Hull Liners


Acoustic Data – Sound Transmission Loss

frequency 125 250 500 1K 2K 4K STC
(dB) 14 14 23 29 34 37 27

Product Availability

Special Order Sizes and Thicknesses are available.

For details, call 1-866-949-9COW.

Customer Reviews

Average Customer Ratings: 4.8 (34 reviews)

The times I talked with you on the telephone and corresponded through email you have been very helpful and efficient. I would highly recommend Soundproofcow.com to anyone!

– S. Cimino, PA

I have emailed a lot of different manufactures and I have to say your customer service is head and shoulders above all of them. I emailed your company at about 9pm my time and when I woke up the next morning you had already answered my question and then the follow up was a few hours later. I am impressed. Thanks a lot for the quick turn around!

– E. Gustafson, NV

I just wanted to send a quick thank you for your rapid response and helpfulness. I very much appreciated it. You have been responsive in every way all through the process. It has been a pleasure doing business with you and your company.

– T. Alexander, CA

I just wanted to let you know that in the end, sealing the air spaces on this door worked just fine and took care of the problem.

I really appreciate you taking so much time to share your expertise with me, and in particular recommending I try the simpler solution before investing in more expensive noise barriers. That is a big credit to you and your business.

– Mike

Need a Quote Quickly?

If you need a quote quickly and would rather talk to a warm body, then dial 1-866-949-9269. No pushy sales guys…promise.

Call Us: 1-866-949-9269 Contact Us

Join the Herd

Get soundproofing tid bits and be the first to know about our special sales.

Subscribe Form - (Full Version)

  • This field is for validation purposes and should be left unchanged.