Capitol 150-sq ft 2-ft W x 3-ft L x 6 -mm T Standard Cork Moisture Resistant Flooring Underlayment For Use Under Laminate, Hardwood
Item #5997830 |
Model #110622
Pickup
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Shipping
Thu, Aug 13
45 available
Delivery
45 available
Natural cork underlayment for use with tile, porcelain, stone, laminate and engineered click wood floors
Resists the transfer of stress cracks (up to 1/8 in) from subfloor through to flooring surfaces
FloorScore certified to meet the indoor air quality emissions criteria of LEED, CHPS, and Green Guide for Health Care
Provides acoustical sound control and cushioning for softer, quieter footfalls
1/4 in (6 mm) thickness to maximize sound reduction
Environmentally friendly, naturally hypoallergenic, antimicrobial, mold and mildew resistant, helps repel insects, pests, mites and termites
22 Delta IIC sound rating value
74 IIC & 70 STC when installed under ceramic tile on a 6 in cement slab with suspended ceiling
Contains 25 sheets measuring 2 ft x 3 ft x 6 mm for a total of 150 sq ft coverage
General | |||
|---|---|---|---|
Type | Panel | Grade | Standard |
Package Quantity | 25 | ||
Dimensions | |||
|---|---|---|---|
Coverage Area (Sq. Feet) | 150 | Thickness Unit of Measure | Millimeters |
Length (Feet) | 3 | Width (Feet) | 2 |
Square Footage Per Roll (Sq. Feet) | 150 | R-Value per Inch | .74 |
Thickness | 6 | Construction Type | Cork |
Features | |||
|---|---|---|---|
Antimicrobial | Yes | Mold/Mildew Resistant | Yes |
Cushioning | Yes | Sound Absorbing | Yes |
Enhancements | Anti-Microbial, Crack Suppressor, Noise Control | STC Rating | More than STC-50 |
IIC Rating | 71-75 | Vapor Barrier | No |
Moisture Resistant | Yes | For Use Over Plywood | Yes |
For Use Over | |||
|---|---|---|---|
For Use Over Concrete | Yes | For Use Over Existing Hardwood | No |
For Use Over Subfloor | Yes | ||
For Use Under | |||
|---|---|---|---|
For Use Under Luxury Vinyl | No | For Use Under Glue Down | Yes |
For Use Under Laminate | Yes | For Use Under Nail Down | No |
For Use Under Hardwood | Yes | For Use Under Luxury Vinyl With Pre-Attached Pad | No |
For Use Under Porcelain/Ceramic | Yes | For Use Under Laminate With Pre-Attached Pad | No |
For Use Under Floating | Yes | ||
Certifications | |||
|---|---|---|---|
CA Residents: Prop 65 Warning(s) | No | ||
Warranty | |||
|---|---|---|---|
Warranty | Limited lifetime | ||
Compatibility | |||
|---|---|---|---|
Use Over Existing Sheet Vinyl | No | ||
Miscellaneous | |||
|---|---|---|---|
UNSPSC | 30161700 | ||
Check out the Best Selling Flooring Underlayment on Lowes.com
Ratings may include incentivized customer reviews.
What Customers Are Saying
Customers overwhelmingly praise this cork underlayment for exceptional comfort and sound-dampening performance. The 6mm thickness delivers a soft yet firm feel, dramatically reducing footfall noise and eliminating creaks between floors. Installation is straightforward—simply unroll, cut, and lay without fasteners; the 4ft x 50ft roll minimizes seams and conforms to uneven subfloors. Reviewers deeply value its natural, antimicrobial, mold-resistant, and hypoallergenic properties, especially for moisture-prone areas. A few note edge brittleness and the roll's weight during handling, but most agree performance far outweighs minor drawbacks.
Customer review summary generated by AI, including incentivized reviews.Terrible
The roll we received is brittle and crumbling. We're trying to make it work, but it breaks and falls apart so easily that we might have to get something different. We had purchased a roll a couple of years ago and didn't have this problem, so not sure if the quality has decreased since then or this one was damaged.
From 200-sq ft 4-ft W x 50-ft L x 6 -mm T Premium Cork Moisture Resistant Flooring Underlayment For Use Under Laminate, Hardwood Verified Purchaser
Thick
Great product, 6mm thick adds sweet and natural cushion
From 100-sq ft 4-ft W x 25-ft L x 6 -mm T Premium Cork Moisture Resistant Flooring Underlayment For Use Under Laminate, Hardwood Verified Purchaser
They have everything
Great service. Very acknowledged about product
From 200-sq ft 4-ft W x 50-ft L x 6 -mm T Premium Cork Moisture Resistant Flooring Underlayment For Use Under Laminate, Hardwood Verified Purchaser
Helps with noise and imperfections
Helps with noise and a little stiff in my opinion, helped with small imperfections its 1/4" thick i used it beneath my LVP and on top of my old glue downed parquet on wood subfloor .was taped down did smell a little bit at first until planking was put on it.
From 100-sq ft 4-ft W x 25-ft L x 6 -mm T Premium Cork Moisture Resistant Flooring Underlayment For Use Under Laminate, Hardwood Verified Purchaser
worst quality I've ever seen !!!
One has to handle it with great care, since it is very britle and breaks just from unrolling and laying flat. It sems to be made from leftovers, only the tiniest particle were used. I had a leftover from my last job, that was made from bigger particles and even after two years, it didn't break (comparison, last picture).
Thank you for sharing your experience. We’re sorry to hear about the difficulty you encountered and understand your concerns regarding brittleness. P...

Great noise blocking/sound deadening material
I used this as underlayment to LVP in 2 upper bedrooms. Compared to contractor grade carpeting and padding (which was pulled off the 2 bedrooms), this cork muffled the footsteps significantly. The big WOW was the amount of noise it blocked coming from the level below. It almost totally blocked the sound coming from my living room. The rolls are big and heavy. I could not lift these up the steps.....I just cut the large pieces then haul them up. The edges are brittle so use a sharp blade to...
From 200-sq ft 4-ft W x 50-ft L x 6 -mm T Premium Cork Moisture Resistant Flooring Underlayment For Use Under Laminate, Hardwood Verified Purchaser
Horrible condition upon arrival - poor packaging
The product was shipped as a plastic wrapped roll and arrive with tons of rips in the plastic wrap which damaged the product. One whole side of a roll as broken and in crumbles. I bought the 1/4" thick rolls which are quite large (4' long by 15-16" in diameter) and heavy. Returning it to a store will be a pain, but so much of the outer layers of the roll are damaged so we will have to figure out a way. If the product was shipped with greater care, I think the product would be great. Do better ...
From 200-sq ft 4-ft W x 50-ft L x 6 -mm T Premium Cork Moisture Resistant Flooring Underlayment For Use Under Laminate, Hardwood Verified Purchaser
Thank you for your feedback. We apologize for the delivery issue you experienced. We stand by the quality of our products, which leave our facilities...

Great for uneven floor’s
Seems durable and sturdy, it’s very easy to work with. I bet it will keep down on the noisy floors. This would be perfect for laundry or kitchen area gives it more sponge under your feet were you would stand a lot. I’m guessing it would even make the floor warmer. Make sure you use a sharp razor blade to cut perfectly. It was a lot easier just cutting it outside on the concrete. Definitely worth trying!
Great under laminate and more
I use this cork product for a variety of uses, from an under laminate to putting cut pieces under pots and more. It is a great product and works wonders to protect the floor both under and on top of the floor. Highly recommended as it is a simple product, yet valuable.
Quality material
Large roll of cork underlayment. Plan to use this under our new flooring in our cabin to provide insulation and cushion barrier. It is a quality material and easy to cut and work with. Should get 2 rooms out of this one roll. Nicely packaged .
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Thank you for your feedback, Nick. We’re sorry to hear about your experience with the product.
We understand your frustration, especially ...