MultiSet Economical Thin-Set Mortar

Product ID: TDS-192

Economical polymer modified mortar for use over concrete, cement backerboard and existing ceramic tile. For interior floors and walls.

  • For basic floor and wall tile installations
  • Meets ANSI A118.4

Coverage Chart


Longest side of tile less than 8" use 1/4" x 1/4" x 1/4" Square notch
Longest side of tile 8" to 15" use 1/4" x 3/8" x 1/4" Square notch

For tile with longest side 15"+, use a medium bed mortar from CUSTOM designed for large format and heavy tile.

Trowel Size Min Coverage Max Coverage
1/4" x 1/4" x 1/4" (6 x 6 x 6 mm) Square-Notch 85 sq. ft. (7.9 M²) 90 sq. ft. (8.4 M²)
1/4" x 3/8" x 1/4" (6 x 9.5 x 6 mm) Square-Notch 60 sq. ft. (5.6 M²) 67 sq. ft. (6.2 M²)

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

Note that all mortar coverage does not include backbuttering tiles. When backbuttering, consider the 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 tile and joint sizes, use the material calculator at or contact CUSTOM Technical Services at 800-282-8786

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