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5mm Pre-Cut Rubber Underlayment

Our Sale Price
$0.75 /sqft
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Save 25%
In Stock - Ships between Sep 29 - Oct 4
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Confetti5mm Pre-Cut Rubber Underlayment
Product Highlights
  • Our most popular underlay.
  • IIC 60, STC 53.
  • Mold and mildew resistant.

  • Our most popular underlay.
  • IIC 60, STC 53.
  • Mold and mildew resistant.
  • Has been shown to absorb sound better than 12mm cork and 12mm foam.
  • Made from over 80% recycled material.
  • Do not use with linoleum, vinyl, or VCT (vinyl composition tile).
  • Can be used with natural stone, hardwoods, laminate, engineered wood, real wood, and tiles.
  • Can be adhered with a polyurethane adhesive, staples, double sided tape, or nails.
Description - Our 5mm pre-cut rubber underlayment offers superior sound insulation at the best price. 5mm rubber underlayment has been shown to outperform all leading forms of underlayment including 12mm cork and 12mm foam. Rubber is great to use in areas that are at and above grade and is a great underlayment in areas where water may be present. This flooring underlayment is also mold and mildew resistant which is due to the fact that rubber does not hold water. This sound proofing underlayment can also be installed directly over concrete or wood and does not have to be adhered to the system via adhesive. You can also float the underlayment in a free floating assembly.
Material - Comprised of 100% recycled material.
Width - 4 feet wide per roll.
Length - Our pre-cut rubber underlayment comes in 25’ lengths.
Thickness - 5mm (Approx. 3/16”).
Weight - 0.83lbs./sqft.
Origin - Made in the USA.
Recommended Uses - Our 5mm rubber underlayment offers a solid surface underneath flooring surfaces, and is a popular choice for hard surfaces such as hardwoods and natural stone. 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 Composite Tile), vinyl, and linoleum.

In Stock - Ships between Sep 29 - Oct 4

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.

Don't see what you're looking for? 
Would the 5mm work in a wall as a sound barrier? I plan to sandwich it between two layers of sheetrock.
Our 5mm Pre-Cut Rubber Underlayment can be used as a wall sound barrier between sheetrock.
Can any of your rubber underlayment can be used with heating floors? (for example, the underlay would be directly on concrete floor in the basement, with electric heating mat over the underlay and laminate floor on top) Thank you!
All of our underlayments can be used with heated floors.
We live in a condo, and 2 years ago, new 5mm vinyl plank flooring was installed and glued down to the concrete gypsum floor. The flooring is in really good shape, but now the condo association wants a 5mm rubber underlay installed for noise suppression for the suite below us. Can we install your 5mm rubber underlay overtop of the existing plank flooring and install new floating locking laminate flooring over it? Or do we need to strip the 5mm vinyl planks off before installing your underlay?
You can install our 5mm Pre-Cut Rubber Underlayment over an existing vinyl floor.
can this be used as underlayment for porcelain tiles.
Rubber underlayment is a popular choice for use underneath stone and tile floors.
Can this be used under foam tiles without applying adhesive? I want to use this in my hallway under some 5/8" foam tiles I purchased and over existing hardwood flooring.
We would not recommend using this directly over hardwood flooring. Please note that putting any flooring over hardwood can be damaging to the hardwood.
how much sqft does one roll cover?
Each roll is 4' wide x 25' long, covering 100 square feet total.
Hi!! I am looking for 100 % recycled anti skid rubber material approx 5mm thick for a mat.
Our 5mm Pre-Cut Rubber Underlayment is 100% recycled, but is not the best material for a mat. We do offer a wide range of mats that are also recycled. Depending on what you are wanting to do on the mat, determines which one would be appropriate for you. All of our rubber mats are anti-skid and can be found on our Rubber Mats page.
I am wondering what the compression and tensile PSI limits for the 5mm and 3.2 mm Rubber underlayments are
Tensile PSI is 90 & Compression is 30 for both the 3.2mm and the 5mm underlayment.
Can this be used just under an area rug in a home to help reduce footfall sound?
Rubber underlayment is an excellent choice for reducing noise. This sounds like a unique application, and we believe you will experience reduced foot fall sound.
Can your 5mm underlayment be used under glue-down cork tiles? If so, what bonding material should be used? Thanks!
Rubber underlayment can be used underneath glue down cork tiles. Use our 5900 Series pressure sensitive flooring adhesive.
What is the best glue to use when you have to glue the 5MM on top of the 10MM. The plitique glue doesn't seem to be bonding the 2 layers together. is there a stronger adhesive i can use.
Our Polyurethane Adhesive would work fine for that use.
Can I use rubber underlayment be used on outdoor patio under my rug?
That should work fine as protection against slip.
I'm installing solid bamboo floors over concrete (floating) and I'm looking for a 3 in 1 moisture barrier. Will the 5mm Pre-cut rubber underlayment work as a moisture barrier?
The rubber underlay does not have a moisture barrier attached .
Can this underlayment product be used over treated deck boards as a base for Naturesort deck tiles
You can use underlayment underneath of the deck tiles outdoors.
does the 5mm rubber have any sort of odor that would be detected is a well insulated environment?
Any of our rubber rolls will have an odor due to the nature of the material. If the odor is too strong or there are smell sensitivities, you can clean the rolls with a mild soap and water solution to help dissipate the smell.
could the 5mm rubber roll be used as carpet pad? plan on using in basement. thanks.
Rubber can be used underneath carpet tiles, but we would recommend using a traditional foam pad if using with broadloom carpet.
What is the R-Value of the 5mm rubber underlayment? Would it be good for insulating?
Colin Peaty
The typical R-Value for rubber flooring in general is 1.100. Our 5mm Pre-Cut Rubber Underlayment is a decent insulator. It is not as good as foam, but will keep any space warmer than concrete or natural stone.
Can this be used under solid hardwood that is nailed down (through the rubber into plywood subfloor)? If so, in this application, should the rubber be adhered to the subfloor?
Rubber underlayment is suitable for installation underneath solid hardwood. Please see our detailed installation instructions PDF for further information.
do you get a rubber odour when using the rubber underlay
There will be an initial rubber smell to the rubber underlayment. You can open windows / air out the space until the smell is gone.
Can this be used outdoors under artificial turf for a play area?
Rubber underlayment can be used outdoors underneath artificial turf. You would install it using turf nails.
Can this be used outside? I have a concrete ramp for my son who uses a wheel chair and I wondered if this would work out better if I installed it on top of that.
You can use rubber outdoors but be advised that you may experience fading over time. For wheelchair use, we'd suggest using a standard (more dense) rubber roll instead of an underlayment which is not meant to be used as a main flooring since it is less dense and meant to be covered, not walked on.
Can I use without adhesive on a cement floor? I'm setting up a temporary football practice area and cant put adhesive down.
Justin Edwards
Yes, and you can use double sided tape to help keep the rolls in place.
For the 5mm rubber product - can you tell me what the STC rating is for this material?
Our 5mm Pre-Cut Rubber Underlayment has an STC rating of 53.
Why can this product not be used underneath luxury vinyl flooring?
Tim Downey
In rare instances, over long periods of time rubber has the potential to stain vinyl flooring. We'd recommend a foam of cork underlayment underneath of vinyl flooring instead.
Would you recommend 5mm Rubber Underlay on 4000 psi concrete under your indoor court tiles (for basketball)? I’m trying to significantly reduce knee/joint impact without compromising bounce characteristics.
Charles Reichenbach
You can use our 5mm Pre-Cut Rubber Underlayment as underlay under our court flooring. Adding rubber underlay under our court flooring will allow for a basketball to bounce properly at the same time provide much-needed cushion for your joints while at play.
Can it be used over hydronic radiant floor heating?
Our 5mm Pre-Cut Rubber Underlayment can be installed over hydronic radiant floor heating. Since rubber is insulating, you may not get the full effect of the system under the underlayment. The system will not affect the floor in any way. It won't melt it or make it buckle in a weird way.
Will product work with hydronic heating?
Our 5mm Pre-Cut Rubber Underlayment can be installed over hydronic radiant floor heating. Since rubber is insulating, you may not get the full effect of the system under the underlayment. The system will not affect the floor in any way. It won't melt it or make it buckle in a weird way.
What is the fire rating for this rubber underlayment? I need it for inspection from fire department.
Marshall Pan
This would be fire rated Class 3.
I plan to order the Mannington Realta 12" Rigid Core Vinyl Planks for my kitchen as those will be installed on top of the existing vinyl tile floor installed by building management over 13 years ago. Is it really necessary to have this underlay? I want to be able to take up the planks if I ever decide to move in approximately 10 years.
Victoria J Wefer
Since Mannington's Realta 12" Rigid Core Vinyl Planks have an attached pad, you wouldn't need to add another underlayment under your flooring.
Can I install this underlayment with the Schluter system decoupler? If so, how?
You can install our 5mm Pre-Cut Rubber Underlayment over a Schluter system like Ditra. You would follow the instructions for installing the Schluter product and the underlayment for the flooring type you are trying to install.
Does cut rubber underlayment smell like rubber. Very sensitive to smells?
Any of our rubber rolls will have an odor due to the nature of the material. If the odor is too strong or there are smell sensitivities, you can clean the rolls with a mild soap and water solution to help dissipate the smell.
Can you tell me the amount of Volatile Organic Compounds in the rubber underlayment?
Lauralee Smith
The VOC content for our 5mm Pre-Cut Rubber Underlayment is <0.5mg/m3.
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Average Rating

  Used in Multiplex for Sound Reduction
Self-installed in Bathroom, Kitchen, Living Room, Hallway, Bedroom
Matt from Sarnia, ON wrote...
I just completed installation of this product under LVT and 12mL laminate with marked results. This was installed on the second floor of my multiplex and the tenants below recorded that all footfall noise was eliminated to the point that only hammering was heard. The floor is not insulated and did not have a dropped ceiling below so I am very happy with the result. I paired this product with acoustical caulking for best results. 5mm rubber cut very easy with a sharp box-cutter knife. Recommeded after extensive research and was happy with delivery time and the packaged product arrived with ample packaging for protection. Only thing is this stuff is HEAVY but great for adding density to your floor. Will purchase again for myself and friends. Matt
Customer review image of  in Kitchen and living room
Customer review image of  in Kitchen and living room
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  make much less foot traffic noise
Self-installed in Kitchen and living room
Bryan from Winchester, Virginia wrote...
Great product. Our bedroom is downstairs below the kitchen and living room where I installed the new flooring. This underlayment helped quiet the floor traffic significantly. Easy to use and very heavy duty. Thank you, Bryan in Winchester, Virginia.
  Garage underlay
Self-installed in Garage
Zachary S. from Sacramento, CA wrote...
I purchased the underlayment for my garage floor and it has exceeded my expectations. It was easy to install (cut for exact placement) and I will also be purchasing more to continue with my garage project .
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