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How To Install Marble Floor Tiles


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Preparing The Subfloor
marble subfloor
© PebbleArt

Difficulty Level: Hard

Time To Complete: 1-2 days or longer with larger rooms, as well as 3-4 days for drying.

Materials Required

  • Marble Tile
  • Cement Board
  • 1 1/4” cement board screws
  • Line Chalk
  • Mortar
  • Notched Trowel
  • Tape Measure
  • T Square
  • Tile Spacers
  • 2X4 Wood
  • Rubber Mallet
  • Marble Sealer
  • Grout
  • Grout Float
  • Foam Brush
  • Work Gloves
  • Wet Saw (Or custom cut pieces)

You want to make sure that the subfloor is completely flat and free of divots, defects, or bumps. Raised areas may need to be sanded down and dips may need to be repaired with filler. Getting the subfloor perfectly smooth is vital to the integrity of the entire floor installation, because any gap between surfaces will be a weak point that can lead to damage.

Before you can lay marble tile you need to install cement board or some other form of vapor barrier underlayment which will block the penetration of liquids which can damage the floor. Thin set mortar can be spread directly on a plywood subfloor with a notched trowel. The cement board sheets are placed one at a time, and are fastened using 1 1/4” screws.

Detailed Info About Installing Cement Board Underlayment

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