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3mm Custom Cut Rubber Underlayment

Our Sale Price
$0.60 /sqft
$2.40/linear foot
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Confetti3mm Custom Cut Rubber Underlayment
Product Highlights
  • Can be used with our Grid-Loc tiles, hardwoods, natural wood, laminate, engineered wood, real wood, and tiles.
  • Do not use with vinyl, VCT, or linoleum.
  • Can be adhered with nails, polyurethane adhesive, staples, or double sided tape.

  • Can be used with our Grid-Loc tiles, hardwoods, natural wood, laminate, engineered wood, real wood, and tiles.
  • Do not use with vinyl, VCT, or linoleum.
  • Can be adhered with nails, polyurethane adhesive, staples, or double sided tape.
  • Antimicrobial added to prevent the formation of mold and mildew.
  • Made from over 80% recycled material.
  • IIC 57, STC 50.
Description - Our 3mm custom cut rubber underlayment is a millimeter thicker than our 2mm roll, but offers a greater amount of sound reduction comparatively. Rubber underlayments are very popular with hard surfaces, due to the fact that rubber is more rigid, and provides the firmness necessary to resist compression from heavy objects and foot traffic. Our underlayment is also mold and mildew resistant due to the addition of an antimicrobial additive that inhibits the growth of both. Our flooring underlayment also doesn’t hold water, which allows for the installation of the underlayment without a vapor barrier. But if the flooring will be installed in an area where water may be present, then a vapor barrier would be required. Also, a vapor barrier may be needed per the manufacturer’s warranty. This soundproofing underlayment is also very popular with our Grid-Loc and Modular tiles due to the fact that it is very thin and helps to reduce the noise that can be made from them. So if you are looking for an underlayment that is affordable but at the same time gives you good sound absorption, then this is the product for you.
Material - Our 3mm custom cut rubber underlayment is comprised of more than 85% recycled material.
Width - 4 feet wide per roll.
Length - Rolls can be custom cut free of charge to any length 15’ or longer. All lengths need to be in whole foot increments such as 15’, 16’, 17’, etc.
Thickness - 3mm (Approx. 1/8”).
Weight - 0.50lbs./sqft.
Recommended Uses - Our 3mm flooring underlayment is designed to be used in both commercial and residential applications. Rubber underlayment is the favorite to use under hard surfaces such as natural stone and hard woods, but it has also been successfully used under ceramic tile, laminate, engineered wood, real wood, marble, brick, pavers, parquet, carpet and tiles. It is NOT recommended for VCT (Vinyl Composition Tile), vinyl, and linoleum.
For complete rubber underlayment installation instructions, please Click Here.

Rubber Underlayment

  • Why rubber underlayment?

Rubber underlayment offers superior sound resistance, is versatile and resilient. Comprised of recycled materials, this environmentally friendly product provides cushion underfoot as well as reducing sound transmission and impact sound such as footsteps. Amazingly, a 2mm thick rubber underlayment has similar testing numbers in sound resistance as compared to a 6mm thick cork underlayment.

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

A favorite for use with hard plastic garage tiles, hardwood flooring and stone floor tiles. Rubber underlayment should never be used with vinyl flooring, VCT, or linoleum flooring as it could potentially stain these materials.


  • 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.

IIC / STC Ratings

  • What do they mean?

IIC stands for Impact Insulation Class, which refers to impact sounds such as shoes hitting the ground, dropping a cell phone, or other scenarios where something it dropped or impacts the floor. STC stands for Sound Transmission Class, which refers to any audible noise (not an impact) such as music playing aloud, a conversation, or a loud television, for example. With both of these ratings systems, the higher the number rating is for the underlayment, the better it will suppress sound, and the quieter a room will be. You may want to pay close attention to these ratings when shopping for underlayment if sound reduction is important to you.

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  For engineered wood
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