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Model # LQ50

Internet # 100192482

Store SKU # 839469

LevelQuik RS 50 lb. Self-Leveling Underlayment

This item has been discontinued.
The Home Depot no longer carries this specific product.

$32.97 /each




Model # LQ50

Internet # 100192482

Store SKU # 839469

Store SO SKU # 1000392350

LevelQuik RS (Rapid Setting) Self-Leveling Underlayment helps level floors prior to the installation of ceramic tile, natural stone, resilient flooring, carpet, wood and other floor coverings. This quick-setting underlayment can be applied to 1.5 in. (3.8 cm) thick in one pour and seeks its own level in minutes. With proper installation, the use of LevelQuik RS can achieve an extra heavy rating for high impact use in food plants, dairies, breweries and kitchens. LevelQuik RS helps eliminate installation problems such as bond failure, crumbling and staining of resilient flooring caused by the free moisture found in traditional underlayment.

California residents: see  Proposition 65 information

  • Used to level floors prior to the installation of ceramic tile, natural stone, resilient flooring, carpet, wood and parquet flooring
  • Formulated with control cure technology
  • Cures fast and develops high early strength for quick installation
  • Walkable in 4 hours
  • Rated for extra heavy use per ASTM C627

Info & Guides

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Product Width (in.) 
Product thickness (mil) 
Recommended overlap (in.) 
Roll length (ft.) 
Roll width (in.) 
Commercial / Residential 
Commercial / Residential 
Flooring Product Type 
Flooring type(s) used with 
Tile & Stone 
Moisture control included 
Package coverage (sq. ft.) 
Sound absorbing 
Subflooring type 
Warranty / Certifications
Manufacturer Warranty 
1 year product 


Rated 3.9 out of 5 by 168 reviewers.
Rated 4.0 out of 5.0 by Not a bad product at all. Just learn from my mistakes Tools you will need: 2 people Measuring bucket 1/4 nap paint roller for primer Egg Beater style mixer Quality 1/2" corded drill (Milwaukee, DeWalt, Craftsman, etc) Libman Flex Blade Squeegee (this worked perfect) Mixing and pouring buckets (depending on size of the job) I bought a cabin in 2010. The main room sits on a slab that at some point, cracked and settled. I've been keeping an eye on it and since I've had the cabin and it hasn't gotten any worse. The previous owner had vinyl tiles down and I want to upgrade to ceramic. Not knowing whether the existing tiles contained asbestos, I was reluctant to pull them all up. So I decided to only remove the ones that were over the crack. My nephew sprayed them down while I removed them. I filled the exposed crack with a concrete silicone to prevent the leveling compound from entering. You will see I used duct tape to cover along the base of the walls. You will need to do something like this because this stuff will seep into any crevice it can find. I'm putting cedar tongue and groove on the walls once the floor is installed so I didn't really care about the duct tape showing. After reading the specs for the levelquik primer, I noticed that it did not state it could be used over vinyl substrates. So I after extensive research, I bought some Ardex P82 primer. This stuff worked outstanding for my application. The levelquik primer is probably fine over wood and concrete subfloors though. I did quite a bit of research (read forums, watched youtube videos, etc) before attempting this job. I knew I couldn't do the entire job in one pour. Being I had a large area to cover. I bought a 20 gallon trash can to mix in. I mixed 4 bags on my first pour. The directions state 5.25-5.75 quarts of water per bag. I went with an even 6 quarts in hopes of buying me a few extra minutes to work with it.. I bought an egg beater mixer with a 30" shaft. to blend it all together. You will need a high quality drill to mix this amount at once. It doesn't have to be a super high torque drill but a high quality standard corded drill with a 1/2" chuck will do the job. We poured all the pre-measured water into the trash can. While I was running the drill, my nephew started dumping bags. Make sure you mix this outside as dust will fly everywhere. I bought two 2 gallon buckets so my nephew could fill one while I poured the other. Once the trash can was light enough, we dumped it. This stuff will drip everywhere. So if you're going through a finished area of your house, make sure you put down something to catch the drips. The first pour went flawlessly. The biggest mistake I made was I didn't wait long enough to do the second pour. I wasn't sure how long to wait, I started the second batch to soon. I waited about 30 minutes before starting my second pour. This time I did 3 bags. I used the same mixing ratio (6 quarts/bag) and I started pouring. I got a little excited and poured to much by the first pour. When they overlapped, I could see there was a lip. So I used my squeegee to pull it back. The problem was the first pour was still soft and I dented it up reaching out and pulling back the second pour. The squeegee did a great job collecting the compound and I could feather it really good. Besides the little dents, you can't even feel a transition from one pour to the other. My advice is to wait at least an hour before attempting a second pour. I don't really have any complaints about the product itself. The only thing I wish they had was better instructions. I downloaded the instructions from the custom builders website and it doesn't say how long you should wait before pouring another batch. It just says if you wait more than 24 hours, you will need to primer the existing compound. April 6, 2015
Rated 5.0 out of 5.0 by Absolutely wonderful product. When I pulled the carpet up in my master bedroom walk in closet. I noticed it had a huge crack that run from one side of it to the other. On one side of the crack the concrete has dropped about 3/8 of an inch. Which was just way to uneven to lay tile over. So I filled the crack with backer rod. Then covered over it with a concrete patch to make it nice and smooth. Purchased 3 bags of the levelquick and the level quick primer. I had my wife mix it while I poured. You have to work kind of fast with this stuff, because it dries pretty fast. Which isn't a problem because for a small room like a bedroom or closet. As long as you mix it right with the correct amount of water this stuff finds it own way. All you need to do is help it out a little bit with a finishing trowel. There is one tool that home depot does not sell that I recommend picking up for this project. A spiked roller. Depending on the size of the job you can get one anywhere from 9" - 24" inches wide. They are a bit pricey but well worth it. Once you pour and trowel the leveler. You go over it with the spike roller. This removes all the air trapped inside and gets rid of trowel lines. It leaves a perfectly smooth and level surface once hardened. Tape the bottom of the walls with masking tape. Dam off the doorways. Foam weatherstripping works great for this. If you are pouring this more than a half inch think. I recommend damming with a thin piece of wood tall enough so the leveler does not flow over it. A good 18 volt cordless drill will do just fine mixing this stuff. No need to go by a corded drill like most people do. Now if you have a cheap cordless drill or a drill less than 18v. I recommend picking up a corded drill that is at least 8 amp. Mix for 2 minutes. Do not move mixer up and down in the bucket as you will get a lot of air in the mix Start pouring at the lowest point in the room and preferably the furthest point from the exit. If the lowest point in the room is close to your exit I would recommend purchasing some spiked shoes as you are going to have to step in the leveler. Pour leveler down. Trowel into corners and trowel excess into other parts of the room. Then take your spike roller and roll it through all the spots of the leveler. The let it dry. You will have a perfectly level and flat service to lay your floor on in about 14 hours. You can walk on it after about 4 hours. July 28, 2015
Rated 5.0 out of 5.0 by Great stuff! I didn't have a very large area to level but since it's something I've never done before, I was a little nervous. I purchased the primer along with a couple bags of the mortar. Some reviews say to use the primer and others say it's not necessary but I tend to err on the side of caution. Whether you use the primer or not, this material is incredibly easy to work with. Make sure you have the right amount of water and this is an easy one man, one bucket job if you have less than 100 square feet. January 27, 2015
Rated 5.0 out of 5.0 by Needs more water that the recommended I poured this on new concrete cured for 10 days and I also applied the primer. I followed instructions but this bags need about six quarts of water instead of the 5.25 to 5.75 recommended. It will work but will not find its own level easily. I mixed two buckets at once and poured them at the same time. One was with the recommended water amount and didn't give me a perfectly flat level surface. The other had more water and worked perfect. I am going to install ceramic floor tile on top of it and despite the wavy appearance, I have a level surface anyway. The Thinset will help. May 4, 2015
Rated 5.0 out of 5.0 by Works Great! This product works wonders on "wavy", uneven floors. Make sure to follow the mixing instructions on the bag, as they have recently changed the amount of water needed per bag. If you have one person mixing and one dumping the bucket and spreading the installation is even easier. December 31, 2014
Rated 1.0 out of 5.0 by be aware I followed the mixing instructions on the package and mixed 5 liter of water with 50 Lb of the product. Used it to level deeps in a plywood sub-floor before I put a hardibacker on it. The mixed product did not self level, instead I now raised areas where I had deeps before and that leaves me in worth situation then I had before. Apparently per the answer to one of the reviews, you have to mix it with 6 liter of water. For me it is too late, the damage already been done. November 1, 2015
Rated 5.0 out of 5.0 by Follow the instructions and you will be amazed when finished. For the pro to the home owner this is a product you can depend on. I am a home owner, in construction all my life but 1st time ever doing this type of job. DO,s -Read the INSTRUCTIONS twice so you dont forget the steps. Follow the INSTRUCTIONS so you dont mess up. Have a container marked with the amount of water needed per bag acordding to the INSTRUCTIONS. Have a 1/2" CORDED drill WHEN you start. Have a helper, one mixes while the other adds the water and product. Have a squege ready just in case you need it. Have the border of the area sealed off befor you start. i used painters tape. ( it will escape if it can ) Have a mask Mix away from the job area Buy more than you think you need, then return unused bags.( you dont have time to run back ) DONT,s - DO NOT STOP UNTILL JOB COMPLETE. My girlfriend and i used 14 bags for 1/2 of our unlevel basement floor. Floor looks great like a pro job untill you see where i STOPPED and then started again. gonna buy more next week and fix that area. been 8 mths now and has held up to alot of traffic. Excellent Product. April 18, 2013
Rated 5.0 out of 5.0 by Easier than I thought with a great smooth finish Debated about lifting some existing tiles and leveling the floor in a basement bathroom. Almost seemed like too much trouble. Couldn't have been further from the truth. Tiles came up easily and this Levelquick was easy to mix with cordless drill (needed both batteries) and the mixing bit the associate from HD gave me. Added the mix slowly to the water (three heaped garden trowel fulls at a time) , mixed well, and went on the floor smooth. Used a hand hand grouting tool to spread it out a bit, but didn't have to do much. Re-tiling should now be much easier. Very happy. November 4, 2012
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