Ceramic & Porcelain Tile
Tile layout, thinset mortar, substrate requirements, grouting, curing, and outdoor tile selection.
- Explain tile layout planning and starting point selection
- Describe thinset mortar types and substrate preparation requirements
- Identify grouting procedures and epoxy grout applications
- Describe cutting techniques for ceramic and porcelain tile
- Explain outdoor tile selection and frost resistance requirements
Lesson 1
Tile Layout Planning & Starting Points
Layout Fundamentals
Proper tile layout is critical for a professional-looking installation. The goal is to create balanced, symmetrical cuts at the room perimeter while minimizing waste. Poor layout results in narrow slivers of tile along walls that look unprofessional and are difficult to cut and install.
The Balanced Layout Rule
The standard approach is to center the layout so that perimeter cuts on opposite walls are equal. If centering results in cuts smaller than half a tile at the walls, shift the starting point by half a tile to create larger, more attractive perimeter cuts.
Reference Lines
Two perpendicular chalk lines snapped through the starting point create four quadrants. The installer works outward from the intersection, completing one quadrant at a time. Reference lines must be checked for squareness using the 3-4-5 triangle method.
3-4-5 Triangle Method
Measure 3 feet along one chalk line and 4 feet along the other. The diagonal between these points should be exactly 5 feet. If not, the lines are not square and must be adjusted.
Always dry lay tiles before applying mortar to check the layout. Center the layout for balanced perimeter cuts, and verify reference lines are square using the 3-4-5 triangle method.