Custom Building Products 50 lb. Marble Granite and Travertine White Premium Medium Bed Mortar-MGMM50 - The Home Depot

Custom Building Products

Model # MGMM50

Internet # 100154560

Store SKU # 588059

50 lb. Marble Granite and Travertine White Premium Medium Bed Mortar

Custom Building Products 50 lb. Marble Granite and Travertine White Premium Medium Bed Mortar

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

$27.67 / each
Bulk Price Discount Available
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Model # MGMM50

Internet # 100154560

Store SKU # 588059

Store SO SKU # 1000392346

This Custom Building Products 50 lb. Marble and Granite Fortified Premium Mortar is formulated for use as a medium bed for natural stone, large tile or clay pavers. The mortar is modified with polymers for strength and can be applied up to 3/4 in. on horizontal surfaces or as thin as 1/8 in. The mortar helps keep floors level and resists sagging when used for wall installations.

California residents: see  Proposition 65 information

  • Formulated for installing gauged or non-gauged natural stone, tile (12 x 12 or larger), clay pavers or for medium bed mortar installations
  • Use with RedGard for a lifetime warranty
  • Polymer-modified for strength
  • Keeps stone level during floor installations
  • Resists slipping or sagging for wall installations
  • White color complements light-colored tile
  • Meets or exceeds ANSI A118.4 and A118.11 specifications
  • Apply up to 3/4 in. thick on horizontal applications or use as a thin-set mortar as thin as 1/8 in.
  • Add water and mix for application

Info & Guides

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Maximum coverage area (sq. ft.)  100  Product Depth (in.)  18 
Product Height (in.)  3.25  Product Width (in.)  15 
Additive required  Water  Color Family  Whites 
Commercial / Residential  Commercial / Residential  Dry time (hours)  24 
Floor/wall use  Floor and wall  Flooring Product Type  Marble Tile 
Indoor/Outdoor  Indoor/Outdoor  Mold and mildew resistant  Yes 
Product Weight (lb.)  50 lb  Product type  Mortar 
Returnable  90-Day 
Warranty / Certifications
Manufacturer Warranty  1 year product 


Rated 4.6 out of 5 by 24 reviewers.
Rated 5.0 out of 5.0 by no slip or sag are the biggest benefits This product is used by mainly professionals that don't want there tiles to sag on the wall regardless of using spacers, some tile like tumbled marble are almost impossible to use spacers, and simplifies the installation of floor tile for a more flush install. It will set up fast on backer boards so you won't have time to readjust tile set 20-30 min earlier. Some won't like it for that reason. Once you learn how to work with it, it is a good product, it has a specific purpose. Mix up small batches until you get used to it. Over 25yrs exp. April 28, 2013
Rated 4.0 out of 5.0 by Good product for stone tiles, worked very well. Good product for putting up tiles. Used it for kitchen back splash. Worked well. Don't know its long term performance because I did the project very recently. I wish they could have an option for 25 lbs bag, instead of just 50 lbs. That can be a waste for a small project. March 3, 2015
Rated 5.0 out of 5.0 by Best and strongest thinset available The thinset works for a variety of applications, tile, travertine and marble on both vertical and horizontal surfaces. The directions make it sound more difficult to use than it is. i found the best experience was to add water and thoroughly mix until it is the consistency of peanut butter. For larger tiles / stones, mix it more loose so that you can work the tiles more easily. For smaller tiles, mix it slightly more firm. Also, I attempted to remove an 18" X 18" tile applied to Durock..., when the tile came up, it ripped up the Durock with it. It has a strong bond, so make sure you get your layout correct. I filled the damaged area with this same mix and it worked out fine. October 29, 2014
Rated 4.0 out of 5.0 by Wish it came in gray. I purchased several bags to lay down some slate floor tile. I chose this product because it was a medium bed mortar so I knew it could handle the weight of the slate. It mixes well, the bags are off by sometimes almost a pound. I always weigh prior to mixing. The only wish is - I wish it would have come in gray. February 25, 2015
Rated 5.0 out of 5.0 by Product made my DIY shower project a breeze..... This product was so easy to mix, and worked perfectly with my Marble tile for my DIY shower project. It has a great holding property, and made my project easier and gave me peace of mind that i made the best choice to use. May 13, 2014
Rated 5.0 out of 5.0 by Great results from this product The material is expensive but it out performs others I have used in the past. I am restoring a slate porch floor and will be installing a compass rose in the center. The work is slow for me but i=so far it looks great. July 29, 2014
Rated 5.0 out of 5.0 by excellent product!! excellent product! I highly recommend it especially for marble installation. January 13, 2015
Rated 5.0 out of 5.0 by Dries white - worked well for me My home remodeling (pretty much everything has been remodeled) has been the first time I've ever done any remodeling work, so I definitely don't have years of experience...however, I can say that this mortar worked well for me to set granite tile on my bathroom walls and floors (NOT in the shower), and marble backsplash in my kitchen. The mortar is a greyish white when first mixed - but it turns very white when dry. I'm using Thassos marble for my backsplash, and it's a pure-white marble (no veining), so I was worried about possible bleeding of ANY color into the marble. I slapped a large amount of the mortar on some backer board and set a broken scrap white marble tile on it to test it....and it dried just fine (marble is still snow white with absolutely no staining/bleeding). The mortar worked well for me on the granite wall tile as well, and I had to install it on existing drywall in some places, and new 1/2" backerboard in others. As long as you mix the mortar well and with the manufacturer's instructed amount of water, it maintains a great consistency and truly doesn't slip off the wall (if you don't use too much - I used a 1/4" square trowel and it came out fine, with just a very thin, flat buttering on the back of the tile...I know many people use a V trowel with premix thin set for walls, but I didn't feel comfortable trusting heavy granite tile with it). July 8, 2010
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