TrafficMASTER Portland Stone 18 in. x 18 in. Glazed Ceramic Floor and Wall Tile (17.44 sq. ft. / case)-ULMK - The Home Depot


Model # ULMK

Internet # 204834499

Store SKU # 1000035351

Portland Stone 18 in. x 18 in. Glazed Ceramic Floor and Wall Tile (17.44 sq. ft. / case)

TrafficMASTER Portland Stone 18 in. x 18 in. Glazed Ceramic Floor and Wall Tile (17.44 sq. ft. / case)

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

$0.78 / sq. ft.
$13.52/  case  (covers 17.44 sq. ft.)


Model # ULMK

Internet # 204834499

Store SKU # 1000035351

The Portland Stone 18 in. x 18 in. Gray Ceramic Floor and Wall Tile is designed for medium-duty residential floors, including kitchens, halls, corridors and balconies. A great way to incorporate a touch of style into your space at a great price. Emulates the look of stone in a ceramic body. Large format tile is great for small or large areas.

  • 17.44 square feet per case, 8 pieces per case. Case weight equals 70 lb.
  • Grade 1, ceramic tile for floor, wall and countertop use
  • 18 in. width x 18 in. length x 9mm thick
  • Traditional tile with a low sheen, random shade variation and smooth finish
  • P.E.I. Rating IV is suitable for heavy traffic on residential and commercial floors in indoor settings or outdoor settings in non-freezing climates
  • Vitreous flooring has water absorption of more than 0.5% but less than 3% for indoor use and some outdoor applications is not frost resistant
  • C.O.F. greater than .50 is recommended for standard residential applications and is marginally skid resistant. Indoor use
  • Not frost resistance
  • Residential Only
  • Learn how to get a Lifetime Warranty by using Custom Building Products from The Home Depot. Visit
  • Don’t forget your coordinating trim pieces, grout, backerboard, thinset and installation tools
  • This item is available for in store purchase only
  • It is recommended you purchase a minimum of 10% overage to account for design cuts and patterns

Info & Guides

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Approximate Tile Size  18x18  Assembled Depth (in.)  18 in 
Assembled Height (in.)  .366 in  Assembled Width (in.)  18 in 
Mosaic Sub Unit Length (in.)  Not Mosaic  Mosaic Sub Unit Width (in.)  Not Mosaic 
Product Length (in.)  18  Product Thickness (mm) 
Product Width (in.)  18  Suggested Grout Line Size  1/8 
Break Strength (lb.)  462  Chemical Resistant  Yes 
Color Family  Grays  Color/Finish  Grays 
Commercial / Residential  Residential  Exact Dry SCOF Rating  .65 
Exact Wet SCOF Rating  .3  Flooring Product Type  Ceramic Floor/Wall Tile 
Glazed  Yes  Indoor/Outdoor  Indoor 
Mosaic  No  Number of Tiles per Case 
Rectified Edge  No  Square Feet per Piece  2.18 
Tile Finish  Matte  Tile Material  Ceramic 
Tile Type  Ceramic  Tile Use  Floor 
Warranty / Certifications
Manufacturer Warranty  This product is warranted against manufacturing defects for the period of one year. 


Rated 3.5 out of 5 by 15 reviewers.
Rated 5.0 out of 5.0 by Very good purchase I loved the color and it worked perfectly in my kitchen. May 6, 2014
Rated 2.0 out of 5.0 by Beautiful, but NOT a good idea This looks beautiful if you look at one tile, however when you start laying it you will notice due to the large size the tile bows and humps up in the center. The corners then lay lower and you get a very uneven floor. Talked to home depot after we started it and they admitted thats how all tile is larger than 12" x12". Not very happy to have put this in our BRAND NEW home, but not going to rip it up either. It has a beautiful look, just don't look at our tiling job too close up. Also, every box we opened had a slightly different size making the final lines look a bit crooked. Great. July 21, 2014
Rated 2.0 out of 5.0 by Love it but hate it Every box had 3 different sizes it caused major stand still to go through all boxes to get same size .My contractor is a perfectionist .He wanted to return all 43 boxes but we already started project before we started to notice the different sizes.My back killing me from measuring each tile.Going tomorrow to see manager .Unhappy helper. September 19, 2014
Rated 5.0 out of 5.0 by Really Nice Put it in my laundry room to replace old vinyl flooring looks great and easy to install. February 2, 2015
Rated 2.0 out of 5.0 by Great price but not worth the headache We purchased enough tiles to cover 500 square feet. We were given tiles from many different dates and lots. The tiles are described as 18" x 18" square tiles. They are anything but square. We have a perfectly square room and we had to adjust our spacing with every tile we laid since they were all odd measurements. It looks nice to someone who is glancing but it's very obvious when you look closely. October 7, 2014
Rated 1.0 out of 5.0 by Worst Decision EVER I purchased 900 sq ft of this tile to lay in my basement. Although the tile does look nice it was a hassle to lay. I laid the first pallet which was a true 18x18 inch even though box says 17 3/4. I then went to lay second pallet and these tiles were only 17 5/8 and were totally different color. I went back to home depot to try to find the same batch I already laid and couldn't find any at any local Home Depots. Tile company wasn't much help getting me more of the same batch either. Needless to say I wasn't able to obtain enough tile to finish the project so I have to use the 17 5/8 tile to finish. STAY AWAY December 30, 2014
Rated 3.0 out of 5.0 by Looks okay but some tiles not cut correctly Purchased 9 boxes. I did not notice that a small percentage of the tiles did not have square cuts until they where installed. The result is that some of the grout lines are not straight and appear to widen from one side of the tile to the other The difference may only be about 1/16-1/8" but it's noticeable to me. July 11, 2014
Rated 4.0 out of 5.0 by Size variations? Not with my experience we have installed about 20 pallets of this tile over the last few months and have not seen a noticeable color or size variation. plus or minus a 1/16 is expected with this size tile and even my new guys haven't had problems with it. January 7, 2015
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Store Exclusive. This item is available for purchase in select stores only.