100 sq. ft. 4 ft. x 25 ft. x 0.08 in. Premium Foam Underlayment for Laminate, Engineered and Glue-Down Floors
- Use with laminate, engineered and glue-down flooring
- Foam underlayment with noise reduction and moisture control
- Mold and mildew resistant foam underlayment
- See More Details
Frequently Bought Together
Price:
$5145
Product Overview
Underlayment is a necessary component of any laminate flooring or floating engineered hardwood installation. This underlayment is suitable for a wide range of flooring including laminate, bamboo and engineered wood. Hides minor imperfections in the sub-floor, provides a soft cushioned step and absorbs sound when walking on the floor. SoundStepXL is a premium polyethylene foam underlayment choice allowing firm support for multiple types of flooring with good acoustic benefits. Built with sound reduction and moisture dissipation in mind. The standard vapor barrier is specially designed for optimal bond with adhesives for easy installation.
- Pre-attached adhesive strip for quick seam sealing and easy installation; creates a leak proof seal; no additional tape required
- Easy installation - roll out and join seams with built-in lip and tape
- Preferred by flooring installers on any level of home
- Underlayment includes an extra thick plastic moisture barrier film and overlap for excellent moisture protection
- Use for both residential and commercial applications
- Delta IIC Sound Rating of 23; delta rating is the best rating to consider when comparing the performance of different types of underlayment
- IIC (Impact Insulation Class) Sound Rating of 74; IIC is a measure of how much impact sound (walking, kids playing, etc.) is reduced after traveling through the floor covering, underlayment, and building structure and emerging in the room below
- STC (Sound Transmission Class) Sound Rating of 63; STC is a measure of how much airborne sound (speech, TV, stereo, etc.) is reduced after traveling through the floor covering, underlayment, and building structure and emerging in the room below
- Suitable for use with radiant heat flooring
- Helps eliminate minor subfloor imperfections
- Surpasses building code requirements
- Providing comfortable walking surface with industry compression to protect your chosen flooring system
- Condo, Townhome and Homeowners Association Approved
- Covers 100 sq. ft. - roll size: 4 ft. x 25 ft. x 0.08 in.
- Contractor rolls available in 600 sq. ft.
- Roll may arrive in either blue or green color. Same material and benefits provided - just different color.
Product Overview
- Use with laminate, engineered and glue-down flooring
- Foam underlayment with noise reduction and moisture control
- Mold and mildew resistant foam underlayment
Compare Similar Underlayment
 | |  |  | |
| Brand | Fortifiber | SOUND STEP | Roberts | Eco Cork Foam |
| Name | 500 sq. ft. 36 in. Wide x 167 ft. Long x 7 mil Thick Aquabar "B" Tile Underlayment Roll | 100 sq. ft. 4 ft. x 25 ft. x 0.08 in. Premium Foam Underlayment for Laminate, Engineered and Glue-Down Floors | AirGuard 100 sq. ft. 40 in. x 30 ft. x 2 mm 5-in-1 Underlayment with Microban for Laminate and Engineered Wood Floors | 75 sq. ft. 3 ft. x 25 ft. x 3.2 mm Waterproof Premium Plus 10-in-1 Underlayment - Vinyl Plank, Laminate, Engineered Wood |
| Price | $2724 | $5145 | $5498 | $5625 |
| Ratings | (212) | (52) | (699) | (370) |
| Flooring Material Features | Attached vapor barrier,Cushioning,Moisture resistant,Mold/mildew resistant,Sound absorbing | Antimicrobial,Attached vapor barrier,Cushioning,Moisture resistant,Mold/mildew resistant,Radiant heat,Sound absorbing | Antimicrobial,Cushioning,Sound absorbing | Antimicrobial,Attached vapor barrier,Cushioning,Moisture resistant,Mold/mildew resistant,Radiant heat,Self-leveling underlayment,Sound absorbing,Soundproof,Waterproof |
| Material | Paper | Polyethylene | Plastic | Foam |
| Package coverage (sq. ft.) | 500 | 100 | 100 | 75 |
| Flooring Type | Engineered Hardwood,Laminate,Stone,Tile | Bamboo,Engineered Hardwood,Laminate,Solid Hardwood | Engineered Hardwood,Laminate | Bamboo,Cork,Engineered Hardwood,Laminate,Prep & Protection,Solid Hardwood,Vinyl,Wood |
| Location | Countertop,Floor,Interior wall,Shower | Floor | Floor | Floor |
| Flooring Product Type | Underlayment | Underlayment | Underlayment | Underlayment |
| View Product | View Product | View Product | View Product |
Compare Similar Underlayment
| | | | |
| Brand | Fortifiber | SOUND STEP | Roberts | Eco Cork Foam |
| Name | 500 sq. ft. 36 in. Wide x 167 ft. Long x 7 mil Thick Aquabar "B" Tile Underlayment Roll | 100 sq. ft. 4 ft. x 25 ft. x 0.08 in. Premium Foam Underlayment for Laminate, Engineered and Glue-Down Floors | AirGuard 100 sq. ft. 40 in. x 30 ft. x 2 mm 5-in-1 Underlayment with Microban for Laminate and Engineered Wood Floors | 75 sq. ft. 3 ft. x 25 ft. x 3.2 mm Waterproof Premium Plus 10-in-1 Underlayment - Vinyl Plank, Laminate, Engineered Wood |
| Price | $2724 | $5145 | $5498 | $5625 |
| Ratings | (212) | (52) | (699) | (370) |
| Flooring Material Features | ||||
| Material | ||||
| Package coverage (sq. ft.) | ||||
| Flooring Type | ||||
| Location | ||||
| Flooring Product Type | ||||
| View Product | View Product | View Product | View Product |
Specifications
Dimensions
Product thickness (mil)
2
Product Width (in.)
48
Recommended overlap (in.)
0
Roll length (ft.)
25
Roll width (in.)
48
Details
Color Family
Blue
Commercial / Residential
Commercial / Residential
Flooring Material Features
Antimicrobial,Attached vapor barrier,Cushioning,Moisture resistant,Mold/mildew resistant,Radiant heat,Sound absorbing
Flooring Product Type
Underlayment
Flooring Type
Bamboo,Engineered Hardwood,Laminate,Solid Hardwood
Location
Floor
Material
Polyethylene
Package coverage (sq. ft.)
100
Returnable
180-Day
Subflooring type
Any
Warranty / Certifications
Manufacturer Warranty
10 Year Limited Warranty
Questions & Answers
14Questions12Answers
What's the R value of this underlayment?
Asked by JB February 19, 20211
Answer0.24
How is this used with glue down flooring? Does the underlayment get glued to the subfloor first?
Asked by Neednewfloors February 3, 20211
AnswerYes, adhere to the substrate first. Apply the finished floor covering manufacturer's recommended pressure sensitive adhesive and allow to flash until tacky. Use a 75 or 100 lb three section roller to secure the underlayment to the substrate prior to installation of the finished flooring.
Does this provide insulation in addtion to a moisture block to use UNDER hydronic radiant heat OSB/pex boards
Asked by Nev January 29, 20211
AnswerSoundStep can not be installed under hydronic radiant heat board as it was designed to be installed on top.
Can this ne installed under nailed down hardwood flooring?
Asked by Cindy August 16, 20202
AnswersI used it to install over 600 sf of nail down 3/4 in solid wood.
Are there any major differences between this and the QuietWalk brand also sold at Home Depot?
Asked by Dawn July 26, 20201
AnswerThe difference is the material they are made out of primarily. QuietWalk is a recycled fiber mix that does offer a bit more sound control in lab situations and in reviews, insulating value, and moisture emissions allowance from concrete at 5lbs per 1000sf per day. Because of QuietWalk's dense construction, it hold up longer over time and not crush as easily vs foam based underlayments. Crosslink foams like Soundstep do perform well, but if you look at the features side by side...the better attributes do favor QuietWalk.
Can I throw this on my walls and ceiling as well for sound proofing purposes?
Asked by Cris May 28, 20201
AnswerPlease note that I am a carpenter, rather than a sound engineer That said, due to the closed cell nature of this product I do not believe that this would be my product of choice. The sound dampening effect is more intended to reduce squeaking caused by floating floor systems rubbing against the subfloor. To my experience the better choice for your application might be an open cell "egg crate" style foam or one of the sound dampening products designed for this use.
Can I stick iron wodden floor
Asked by Mayank April 4, 20201
AnswerWe would like to hear more about your flooring situation. Please call us at (888) 379-9695.
Hi. Can this product be used over concrete that has radiant heat? Thanks
Asked by conman March 6, 20201
AnswerYes
Will the 2 mm underlayment attached to Pergo Outlast serve as a moisture barrier on a concrete ba...
Asked by Chris March 3, 20201
AnswerAdding a premium foam underlayment offers other benefits compared to moisture barrier such as compression resistance, sound absorption and thermal value to keep your floors warm. You will have to contact the flooring manufacture to see if it serves as a moisture barrier.
Can you use this with lifeproof floating vinyl floors??
Asked by Tate February 25, 20202
AnswersYes, underneath of course. Not sure why the other answer assumed you're putting underlayment on top of a floating vinyl floor :)
Customer Reviews
Dec 5, 2019
This sound step foam underlayment I got to go under my laminate flooring. This product comes in ...
This sound step foam underlayment I got to go under my laminate flooring. This product comes in 100 sq. feet (4ft X 25ft). It was easy to install, just unroll, cut and when you need to add another row just unroll, cut, overlap over first row, pull the tape strip off and stick together. I like the thickness of this sound control when walking on the floor there is little to no sound (like a hollow noise). It is also a moisture barrier, I'm putting this floor on concrete and need that barrier. I've used other underlayments but this one is the best so far.
by Mim
Nov 14, 2019
This underlayment from Sound Step is great, it gives insulation feature and vapor barrier all in ...
This underlayment from Sound Step is great, it gives insulation feature and vapor barrier all in one. It also cushions the floor giving a quieter walking surface. It is cross linked foam in 48 inch width, by 25 feet long. I would recommend letting it lay out after unrolling before starting to place the laminate flooring. It is suitable for laminate and wood flooring. It covers 100 square feet or approximately a 10 foot by 10 foot room.The yellow strip is for overlaying with the next piece to insure even flooring.
by Dale
Nov 11, 2019
I chose this Sound Step foam underlayment for a variety of reasons, but primarily for its leak-pr...
I chose this Sound Step foam underlayment for a variety of reasons, but primarily for its leak-proof moisture barrier properties, since I wanted an underlayment for use in both my main bath and my kitchen.
What I got in this Sound Step product, though, was a product with so much more-- it has excellent sound reduction ratings, so it's ideal on any level of your home, and is suitable to use in conjunction with glue-down or floating installs. You can even use SoundStep with your radiant heat flooring installations.
I was impressed with the durability of the 2-mil thick polyethylene foam -- it's cushion-y and makes your laminate or engineered flooring more quiet and comfortable to walk on.
The feature I most appreciate is the pre-attached adhesive strip along one edge of the foam -- you simply butt together two strips of the underlayment, then peel off the backing strip on the tape, exposing the tape lip, which you pull over and secure to the adjacent section's edge. Voile-- you've got a perfect, waterproof seal. Makes the install fast & foolproof-- very handy!
There are ample instructions to guide you through all the various types of installations (though I'd like to see some illustrations added.) I used this in a floating floor application, so it was pretty straightforward.
This underlayment provides quiet, comfort and peace of mind at a great price-- highly recommend.
by DaneDame
Nov 11, 2019
I put in flooring in my kitchen and living room. The kitchen was linoleum and not fully even. Plu...
I put in flooring in my kitchen and living room. The kitchen was linoleum and not fully even. Plus I was not removing the linoleum. The living room was carpet on concrete. I needed something sufficiently thick to keep the boards from feeling every blemish and from clacking. This worked great. There is a 600 sq ft roll on Home Depot that I also bought to finish the job. It is quiet and worked great.
by ashertopia
Nov 8, 2019
This product I really like, I had installed a laminate floor before in my place and it had a plas...
This product I really like, I had installed a laminate floor before in my place and it had a plastic sheet on top and bottom with small foam balls that made noise for about a half year after the installation. But this product is just a foam sheet that has a good water resistance, soft, no noise when walking on it and it has an strip of adhesive to attach another roll of foam right next to it and also seal from moisture.
by Fred
Nov 7, 2019
Sound step is a foam rubber underlay for laminate flooring and it works well to dampen the sounds...
Sound step is a foam rubber underlay for laminate flooring and it works well to dampen the sounds of footsteps.It has double sided tape on the edge to adhere to the floor and on the seams.It says to use a 75 to 100 hundred pound roller to adhere it but I used a rolling pin and it worked just fine.It is very smooth and was easy to put down.It didn't move around once set and made the laying of the flooring easy.Directions are well written and easy to follow.Going to get more for the bathroom,will make a great water barrier under the flooring.I really like how well it is made.
by mcknzy
Nov 5, 2019
I'm very impressed with the SoundStep premium cross-linked foam underlayment and I'm using it on ...
I'm very impressed with the SoundStep premium cross-linked foam underlayment and I'm using it on stairs and hallway to provide a quieter floor in those areas. It's about the same thickness of other underlayments, but with much better sound control with a Delta IIC rating of 23. I'm using it under a wood laminate floor, but it's also approved floating engineered wood, laminate and glue down wood floors. It's compression resistant and works well with the click together system. It provides moisture protection and has a self seal tape to join it. It comes in a 100sf roll (48"x25') I definitely recommend it as a superior quality product that is also cost effective.
by Rockhunter
Oct 31, 2019
Sound Step underlayment is a superb and very high quality product. It is also quite easy To inst...
Sound Step underlayment is a superb and very high quality product. It is also quite easy To install. It is nice and wide, and covers a lot of area. It went down very easily and stays flat. It doesn’t have memory curl from being rolled up.
I really like that it comes with adhesive already on it. Simply lay it out, peel the strip off the self adhesive and you are ready to go.
Very easy to use, high quality and makes the floor feel and sound very quiet.
by Barrootz
Oct 30, 2019
Pretty easy to use though it is easier to join the sections with the pre-installed taping system ...
Pretty easy to use though it is easier to join the sections with the pre-installed taping system if you have two people to hold them in alignment while you secure the tape to be sure the sheets are straight and smooth. One person can do it (I did) but it would be easier with 2. The fold over tape held well for me and completes the vapor barrier if you need it. The 4 foot wide sheets meant I had less seams in the underlayment compared to the 3 foot underlayment I used in a prior room. This underlayment is thin (see Pic) but effective. The floating floor I installed over it is quiet and there is no noticeable give as I had with another thicker product in the other room. Does the job and doesn't add thickness to your installation.
by scottthom
Oct 29, 2019
I love this stuff. I used it in a hallway that was very noisy to the rooms underneath it and now ...
I love this stuff. I used it in a hallway that was very noisy to the rooms underneath it and now you can barely hear a thing underneath. It was like soundproofing the floor which i love because the only other option would be to rip the drywall down and put insulation in the ceiling underneath. I am very happy with this product and it worked very effectively
by ML
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