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Model # DITRA5M

Internet # 100143471

Store SKU # 702068

Ditra 54 sq. ft. 3 ft. 3 in. x 16 ft. 5 in. x 1/8 in. Thick Uncoupling Membrane

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

$83.67 /roll




Model # DITRA5M

Internet # 100143471

Store SKU # 702068

Store SO SKU # 1000894373

Ditra is a polyethylene uncoupling underlayment with a grid structure of square cutback cavities and an anchoring fleece laminated to the underside. Ditra provides uncoupling through the open rib structure which allows for in-plane movement that effectively neutralizes the differential movement stresses between the substrate and the tile, thus eliminating the major cause of cracking and delaminating of the tiled surface. Ditra provides waterproofing and vapor management. Underlayment for tile.

  • Designed for use with ceramic and stone tile
  • Ideal for interior and exterior tile and stone installations
  • Neutralizes stress that originates in the subfloor to eliminate the main cause of tile cracking
  • Waterproofs and allows moisture in the substrate to evaporate
  • Replaces backboard or a second layer of plywood
  • Polyethylene material
  • 54 sq. ft. roll measuring 3 ft. 3 in. x 16 ft. 5 in.
  • 1/8 in. thick membrane makes transitioning to other surfaces simple
  • Easy installation over a thinset mortar

Info & Guides

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Product Length (in.) 
Product Width (in.) 
Color/Finish Family 
Commercial / Residential 
Commercial / Residential 
Flooring Product Type 
Warranty / Certifications
Manufacturer Warranty 
10 Year Limited Warranty 


Rated 4.6 out of 5 by 38 reviewers.
Rated 5.0 out of 5.0 by Ditra or Hardibacker I did two DIY floors in my 100 year old house, one with ditra and one with hardibacker. Both worked. The main difference is Ditra provides more strength against breaking tiles, while hardibacker provides for a flat floor. Ditra mimics the subfloor underneath, while with hardiboard you can really flatten out an irregular subfloor. Thus my ditra floor has held up great despite me using too much Mapei Ultraflex 2 to try and level tiles. Ditra's technology is sound and its width can help you on transitions to other rooms but ditra won't be a big help in flattening out a floor. You can make up some that problem in added or removed thinset, but if that's a big concern go with hardibacker. If your floor is fairly flat, I'd trust the Ditra system. September 17, 2015
Rated 5.0 out of 5.0 by Easy to use and great product! I used this in my bathroom under marble tile a few months ago. It was my first time ever laying tile. I used this product because a professional installed our tile throughout our dining/living area and this is what he used. It was easy to use and my favorite byproduct of using this product is that is really insulates the room. After the dining/living area was done, we noticed the difference in heating bills and warmth of the rooms, so I used it in the bathroom. I am now going to use this in the laundry room on my second tile laying project!! September 22, 2015
Rated 5.0 out of 5.0 by Excellent, if expensive product Extremely easy to install, when you follow the makers instructions. Bonding to the SUBSTRATE, use a latex modified thin set, bonding the TILE to the membrane use an UN-MODIFIED mortar. Also, be careful filling the pockets in the top surface. The design traps air, and it takes a few strokes to establish a good fill. Great stuff. August 25, 2015
Rated 5.0 out of 5.0 by Great product!!! This is the very best way to create a solid but crack-free base for tile! November 4, 2015
Rated 5.0 out of 5.0 by Ditra details Before installing this product do your home work as there are some inportant diffferences than using backer board: type of mortar, make sure you push out any accumulated mortar under the ditra tht would cause bumps in the ditra as the bumps may not be apparent, be sure to trowel mortar in all directions with staight edge of trowel to push motar under edges of the little squares before trowling on additional mortar to set the tile, its the dove tail design of the ditra that mechanically holds the motar and tille to the ditra May 12, 2015
Rated 5.0 out of 5.0 by Great product but do your homework I think this is a great way to waterproof and do underlayment in one pass. I don't think you need the roller, a grout float does a good job. Even those funky thick soled flip flops, the wife just skated around. But it does take some work. You need UN modified thinset between the Ditra and the tile AND it uses a lot more than normal, I'd figure almost 50% more thinset than normal. Agree with prior reviews, HD should carry the seaming product and a better UN modifed thinset, Ditra has a branded product now. Time will tell, I've just used exterior plywood in the pas, but this is the first bathroom I've tiled. August 21, 2011
Rated 5.0 out of 5.0 by awesome product if you do it right I've installed in bathrooms, utility rooms, kitchens and on counter tops. Works excellent. The Versabond Home Depot sells will work between wood substrate and Ditra, but Home Depot does not sell a good unmodified. Custom Blend just doesn't cut it. You must use a premium unmodified mortar between tile and Ditra (no polymer!! it's not supposed to stick to the Ditra!). Mastic is not recommended. All premixes contain polymer. 11/64 trowel is not required, Schluter themselves even say so. I used a 1/4 x 3/16 v-notch trowel that they say is ok to use. Home Depot sells this. You don't need a roller to embed it, i use a grout float and it works just fine, pull up a corner to check for proper coverage. Back butter your ceramics. No one says you can't use it with concrete backer board. The more insurance the better. This is a lifetime floor if you follow Schluters instructions. Their FAQ can help you sort through who is giving you the right information. May 11, 2011
Rated 5.0 out of 5.0 by Great stuff I used it on my first tile project, and I will use it again. It was extremely easy to work. Would recommend it to anyone to use. On a side not, there is a thicker version (Ditra XL) that can be used if trying to match height with something like hardwood flooring. Not sure why HD doesn't offer that as well. Only bit of advice would be to use a little bit more water when mixing the thin-set that goes between the flooring and underside of the Ditra. October 27, 2008
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