MP Global Best 400 in. x 36 in. x 1/8 in. Acoustical Recycled Fiber Underlayment with Film for Laminate Wood-QW100N1HD - The Home Depot

MP Global

Model # QW100N1HD

Internet # 100641165

Store SKU # 787706

Best 400 in. x 36 in. x 1/8 in. Acoustical Recycled Fiber Underlayment with Film for Laminate Wood

MP Global Best 400 in. x 36 in. x 1/8 in. Acoustical Recycled Fiber Underlayment with Film for Laminate Wood

This item has been discontinued.
The Home Depot no longer carries this specific product.

$49.98 / roll


Model # QW100N1HD

Internet # 100641165

Store SKU # 787706

Store SO SKU # 239343

Home Depot's Best Underlayment smoothes out little sub floor imperfections while quieting impact sound and floor to ceiling noise. Not only does it dampen ambient sound in the room it's installed in, but it also inhibits sound from traveling into the room below. Although it is promoted as an upgrade underlayment taking the place of poly foam, it doesn't carry a heavy upgrade price when compared to cork or rubber. On the other hand, in recent head-to-head Sound Transmission Loss tests, Home Depot's Best Underlayment outperformed both cork and rubber in the majority of test band frequencies. Certified field sound tests were performed on an installation over a standard 6 in. concrete sub floor, and received an FIIC score of 71.

  • Environmentally friendly, utilizing over 89% recycled fibers, green choice versus all the petroleum-based underlayment on the market
  • Synthetic fiber pads are fast becoming the most specified underlayment for floating wood and laminate floors by architects and designers because of their acoustical and moisture protection qualities
  • Superior acoustical test scores that generally meet or exceed the requirements for sound barriers between floors in multiple housing construction set forth by most municipality or condominium association building codes
  • Roll measures 400 in. x 36 in. x 1/8 in.
  • Designed to draw sound in and help deaden it, not deflect, helping make laminate floors sound more like real wood
  • It has an Impact Insulation Class (IIC) rating of 60 and a Sound Transmission Class (STC) rating of 54
  • Offers great moisture protection
  • Can be installed over wood or concrete sub floors


Assembled Depth (in.)  400 in  Assembled Height (in.)  .125 in 
Assembled Width (in.)  36 in  Product thickness (mil)  125 
Recommended overlap (in.)  Roll length (ft.)  33.33 
Roll width (in.)  36 
Antimicrobial  Yes  Commercial / Residential  Commercial / Residential 
Cushioning  Yes  Flooring Product Type  Underlayment 
Flooring type(s) used with  Laminate  Material  Felt 
Moisture control included  Yes  Package coverage (sq. ft.)  100 
Returnable  90-Day  Sound absorbing  Yes 
Subflooring type  Any 
Warranty / Certifications
Manufacturer Warranty  Limited lifetime warranty 


Rated 4.5 out of 5 by 31 reviewers.
Rated 4 out of 5 by Fair value It is a quality product. Just note that it needs seam tape. Other underlayment I have used has a flap of plastic to create the seam. The salesman failed to point that out to me. Also, the recycled fiber will come apart if you use a dull knife. I reccommend scissor or very sharp knife. November 11, 2014
Rated 5 out of 5 by Highly Recommended I was installing some Timberclick from Floor and Decor, basically it is hardwood that you can float like engineered. Totally awesome! Anyway, I was installing over concrete and bought a thermal, moisture barrier underlayment that was to help prevent the flooring from getting cold. After installing a few rows, I walked across and it had that hollow click sound! I read about this underlayment and rushed to home depot and installed over 400 sq ft so far with the thermal layer and this acoustical underlayment. Complete difference, has more of a solid sound. Easy to use, little hard to cut, but not too bad. Worth the extra money, trust me, you be much happier if you just spend the few extra bucks and do it right the first time. October 6, 2014
Rated 5 out of 5 by Great Underlayment Great underpayment for the price! Installed under engineered hardwood. Super easy to install, and the end sound quality is second to none! Would recommend to anyone looking for high quality without the high price. October 14, 2014
Rated 5 out of 5 by Nothing but the best- and most expensive Last minute project to rock and laminate a large attic. From ugly duckling to incredible space. I did not want to be cheap about noise and heat control in this attic space, so I chose this product, and it works well underneath the laminate flooring. November 5, 2014
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