PremiumPlus® Premium Non-Modified Thin-Set Mortar

Product ID: TDS-193

Non-modified mortar for most basic tile jobs. Covers 10%-20% more area than standard thin-sets. Long working time allows ample time to adjust tile. For dense tile or installation over exterior grade plywood use Custom Building Products’ Thin-Set Mortar Admix.
Available in Canada only

  • High cement content for use with uncoupling mats and membranes
  • Smooth and creamy – easy to trowel
  • Meets ANSI A118.1 without additives
  • Meets ANSI A118.4 and A118.11 when mixed with Thin-set Mortar Admix

Coverage Chart


Trowel Size Min Coverage Max Coverage
Longest side of tile less than 8" use 1/4" x 1/4" x 1/4" (6 x 6 x 6 mm) Square-Notch 100 sq. ft. (9.3 M²) 110 sq. ft. (10.2 M²)
Longest side of tile 8" to 15" use 1/4" x 3/8" x 1/4" (6 x 9.5 x 6 mm) Square-Notch 90 sq. ft. (8.4 M²) 100 sq. ft. (9.3 M²)

Recommended minimum coverage (80% for dry areas and 95% for wet areas and exteriors). Back buttering may be necessary.

Note that mortar coverage does not include backbuttering tiles. When backbuttering, consider the tile underside pattern and depth to estimate thickness and usage to add to your estimate.

Chart for estimating purposes. Coverage may vary based on installation practices and jobsite conditions. For more sizes, use the material calculator at or contact CUSTOM Technical Services at 800-282-8786.

Related Product(s)

Materials Calculator Determine how much material you need for your project.