Roberts Black Jack 100 sq. ft. 28 ft. x 43 in. x 2.5 mm Premium 2-in-1 Underlayment for Laminate and Engineered Wood Floors-70-026 at The Home Depot
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Model # 70-026

Internet # 202549346

Store SKU # 591759

Black Jack 100 sq. ft. 28 ft. x 43 in. x 2.5 mm Premium 2-in-1 Underlayment for Laminate and Engineered Wood Floors

Roberts Black Jack 100 sq. ft. 28 ft. x 43 in. x 2.5 mm Premium 2-in-1 Underlayment for Laminate and Engineered Wood Floors

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

$0.30 / sq. ft.
$29.97/  roll  (covers 100.0 sq. ft.)
Item cannot be shipped to the following state(s): GU,PR,VI


Model # 70-026

Internet # 202549346

Store SKU # 591759

Roberts Black Jack 2-in-1 Underlayment for under floated laminate, bamboo and engineered wood floors is ideal for use with many types of subflooring. Black Jack is engineered as a superior grade, 2-in-1 underlayment. The 2.5mm thick foam layer provides optimal cushioning and sound absorption. The closed cell foam design provides excellent moisture vapor resistance. Includes a 4 in. overlap and adhesive strip to seal out moisture and join multiple rolls.

  • For use under floated laminate, bamboo and engineered wood floors
  • Dense, closed cell structure offers moisture, mold and mildew resistance
  • Ideal for use over radiant heated floors
  • Offers cushioning, along with a reduction in sound transference
  • Easy installation with plastic overlap and adhesive strip
  • 100 sq. ft. coverage with rolls measuring 43 in. x 28 ft.
  • The IIC (Impact Sound Transmission Test) rating is 68, STC (Sound Transmission Loss Test) is 65 and ? (Sound Transmission Loss Test) is 20


Antimicrobial  No  Assembled Depth (in.)  336 in 
Assembled Height (in.)  0.1 in  Assembled Width (in.)  43 in 
Commercial / Residential  Commercial / Residential  Cushioning  Yes 
Flooring Product Type  Underlayment  Flooring type(s) used with  Laminate 
Manufacturer Warranty  To be free of manufacturing defects  Material  Plastic 
Moisture control included  Yes  Package coverage (sq. ft.)  100 
Product thickness (mil)  2.5  Recommended overlap (in.) 
Returnable  90-Day  Roll length (ft.)  28 
Roll width (in.)  43  Sound absorbing  Yes 
Subflooring type  Any 


Rated 4.1 out of 5 by 59 reviewers.
Rated 5 out of 5 by Nice product to work with. Padding is a dense rubber like product. Very easy to install. The self stick tape included was an added benefit. My only complaint is that the roll seemed to be wound the wrong way. If you unroll it in the traditional way, with the roll on top, the "this side up" ends up being against the floor. A bit inconvenient, but not a deal breaker. Definitely would use again. August 19, 2014
Rated 5 out of 5 by Quality product I rehab houses and I install a lot of laminate flooring. Lately I've been using Robert's Back Jack and I'm pleased with the ease of installation, the moisture protection and the soft feel under foot. From experience let me make this suggestion. Like most underlayment I've used this will not stand-up to unprotected foot traffic, it will snag and tear easily, so install one row at a time, apply your flooring, then install the next row, this will minimize it's exposure. Also, remove all staples and fully seat all screws and nails into the subfloor. Like most things proper preparation is the key to perfect results. October 18, 2013
Rated 5 out of 5 by Great underlayment! This underlayment was very easy to install and took very little manipulation to keep it in place while positioning it. It gives a great spongy feel to the floors and makes absolutely no noise at all!! November 1, 2011
Rated 5 out of 5 by Excellent underlayment It rolled out great and stayed in place. The additionally tape strip made it easy to keep the pieces in line and under my laminate flooring! October 9, 2012
Rated 4 out of 5 by Great product, needs slight improvement This is a sponge neoprene underlayment and appears to be very well made. It comes with a plastic flap on one edge and adhesive tape on the other. The flap and tape are great for situations where you need a vapor barrier (such as over concrete) but it's handy to have regardless to keep your seams tight. There are a couple down sides though: 1) It comes rolled up the wrong way so that when you unroll it the up side is facing down. A minor problem but a bit of a pain. 2) It does not unroll in a nice straight line but rather a slightly curved arc. Don't try to straighten it out or you'll create puckers and bumps. Just go with the flow and be sure to allow about 2" of material to bend up the wall so you can trim it later. 3) Some rolls have splices in the material. Instead of butt joining the splices they overlapped them. I had to cut out all their splices so i could butt them properly. Even their instructions say not to lap the joints! 4) The paper backing on the adhesive tape can be a little difficult to remove. It takes some patience to get an edge started so you can strip it off to expose the sticky tape. Aside from the above, a great product that does what it's supposed to do. November 29, 2011
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