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6mm Eco-Cork Underlayment

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Natural6mm Eco-Cork Underlayment
Product Highlights
  • Mold and Mildew Resistant.
  • Common cork thickness used.
  • Most installations require vapor barrier.

  • Mold and Mildew Resistant.
  • Common cork thickness used.
  • Most installations require vapor barrier.
  • Will expand and contract with your flooring surface.
  • Can be used under wood floors, natural stone, ceramic tiles, vinyl, linoleum, LVT, engineered wood, VCT, and many other flooring surfaces.
Description - Our 6mm cork underlayment offers superior sound absorption while offering superior protection of your floor. This industry standard thickness outperforms foam underlayment and has the ability to suppress cracks in the floor due to fracturing in the sub floor. Cork also has the ability to ‘breathe’ which allows moisture to move through the floor which in turn helps to prevent mold and mildew. 6mm thick cork is equivalent to 2mm thick rubber, making it a great and inexpensive option for most of your flooring needs.
Material - Our 6mm flooring underlayment is made from cork, which is harvested bark off of the cork tree. The bark of the tree grows back for over 200 years and can be stripped every 9 years, making this product truly 'green'.
Width - 4 feet wide roll.
Length - Available in 50’ and 98’ standard lengths.
Thickness - 6mm (~1/4”).
Weight - 0.27 lbs./sqft.
Recommended Uses - 6mm cork underlayment is a favorite of wood floors, but has been successfully used under ceramic tiles, hardwoods, and natural stone, vinyl, linoleum, luxury vinyl tiles and planks, engineered wood, vinyl composition tiles, cork flooring, and bamboo.
For floating floor installation instructions, please Click Here.

For glued floor installation instructions, please Click Here.

For nailed wood floor installation instructions, please Click Here.

For direct bonded tile installation instructions, please Click Here.

For installation instructions for tile on CBU(Cement Board), please Click Here.

For tile on mortar installation instructions, please Click Here.

For installation instructions for tiles on CBUs over 6mm, please Click Here.

Cork Underlayment

  • Why cork underlayment?

Cork underlayment is a wonderful eco-friendly underlayment option that helps to add warmth underfoot as well as sound reduction properties. Popular for use in condos and commercial properties, cork is naturally mold and mildew resistant and allows air to flow freely through the floor system.

Do I REALLY need underlay?

  • Yes, most definitely.

Underlayment is an amazing invention created by the flooring gods out of necessity. Underlay has an impressive list of benefits, including: adding warmth to your floors so your feet aren’t so cold on new tile flooring, adding comfort and a slight ‘give’ underneath wood or vinyl floors, reduced sound transmission (great for houses with noisy teenagers!), as well as reducing in room step noise. The image to the left is a very simplified example of using underlayment versus not using it, but as you can see the benefits greatly outweigh any reason not to.

Making your house a home

  • Products that work together

Cork underlayment is popular for use underneath of ceramic and porcelain tile flooring, hardwood floors, vinyl floors, and laminate floating floors. Cork underlayments is really quite versatile and can be used underneath all floor types.


  • What does it mean?

Underlayment with a thickness of up to 5mm thick are great when it comes to residential or commercial use, with all flooring types. When you get to more than 5mm thick, these are really great for installations where you need to add thickness to match up with an adjoining/existing floor surface.

Don't see what you're looking for? 
I am wondering if I can use this product without putting anything on top? No furniture would be on top of it. Light walking only. I want to use in my craft room. It has wood floors in there now, and it's a cold room. I thought this might warm it up, and make it quieter, and look nice. Please let me know.
This is a very unique application. You could try it or go with one of our soft foam flooring tiles (a common choice in craft rooms). The cork underlayment is not 'sealed' in any way, so if any damage was to occur it may cause flaking.
What is the STC and IIC rating for the 6mm Eco-Cork underlayment for a 6" concrete slab without a drop ceiling? Thanks.
This particular product does not have any testing. You could go with a product like R60 cork if you require testing/ratings.
does this add insulation R value to concrete floor ... does it make vinyl planks feel warmer to feet on concrete floor
This particular product does not have any testing associated with it. You could choose a product such as R60 cork if you require testing/ratings.
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Average Rating

  6mm Eco- Cork
Self-installed in Sun Room
Jason Hair from Lancaster, PA wrote...
Used under luxury vinyl plank over concrete. Packaging was great. Factory edges of roll where clean and straight. Gauging of material from one side of roll to the other was spot on. Lays flat with minimal effort. Great product!
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