How floor tile is set — comb, back-butter, beat in, grout

Set floor tile in four moves: comb the thinset into straight ridges with the trowel at 45°, back-butter and press the tile into the ridges, beat it in until the ridges collapse to full coverage (80% dry / 95% wet), then space it, let the mortar cure, and grout.

What this diagram shows

A four-panel walkthrough of setting floor tile. Panel 1: a notched trowel held at 45 degrees combing thinset mortar into straight parallel ridges on the substrate, not swirls. Panel 2: a tile being back-buttered and pressed down into the ridges. Panel 3: a beating block and mallet tapping the tile so the ridges collapse into a full mortar bed, with at least 80 percent coverage for dry areas and 95 percent for wet or exterior. Panel 4: spacers set between tiles and a rubber grout float pushing grout into the joint at 45 degrees, only after the mortar has cured.

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<figure style="margin:0;max-width:800px">
  <a href="https://remodelcalculators.com/construction-diagrams/tile-set-sequence" target="_blank" rel="noopener">
    <img src="https://remodelcalculators.com/illustrations/tile-set-sequence.svg" alt="A four-panel walkthrough of setting floor tile. Panel 1: a notched trowel held at 45 degrees combing thinset mortar into straight parallel ridges on the substrate, not swirls. Panel 2: a tile being back-buttered and pressed down into the ridges. Panel 3: a beating block and mallet tapping the tile so the ridges collapse into a full mortar bed, with at least 80 percent coverage for dry areas and 95 percent for wet or exterior. Panel 4: spacers set between tiles and a rubber grout float pushing grout into the joint at 45 degrees, only after the mortar has cured." width="800" height="560" style="width:100%;height:auto;border:0" loading="lazy">
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    Diagram: <a href="https://remodelcalculators.com/construction-diagrams/tile-set-sequence" target="_blank" rel="noopener">How floor tile is set — comb, back-butter, beat in, grout</a> — courtesy of <a href="https://remodelcalculators.com" target="_blank" rel="noopener">RemodelCalculators.com</a>
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