CTI Tile Layout & Design 3

Question 1

When laying out a large-format tile (LFT) floor, what is the maximum allowable lippage per ANSI A108.02 with a 1/16-inch grout joint?

Accepted Answer

1/16 inch

Answer

ANSI A108.02 allows a maximum of 1/16-inch lippage (1/32-inch for tiles with less than 1/16-inch joint) for large-format tiles in residential applications.

Question 2

A 'brick joint' or 'running bond' pattern offsets each row by what fraction of the tile length to minimize lippage on large-format tiles?

Accepted Answer

1/4 of tile length

Answer

A 33% (1/3) or less offset—ideally 1/4—is recommended for large-format tiles to reduce lippage caused by tile warpage.

Question 3

Which layout pattern creates the most visual complexity and requires the most precise cutting?

Accepted Answer

Versailles (French) pattern

Answer

A Versailles pattern uses multiple tile sizes in a repeating modular arrangement, requiring precise cuts and careful planning to maintain alignment.

Question 4

When transitioning between two different tile sizes in the same floor, the installer must ensure:

Accepted Answer

Grout joints between the two areas align or are deliberately offset by design

Answer

At transitions between tile sizes, grout joints must either align or be intentionally misaligned by design to avoid a random, unplanned appearance.

Question 5

For a wall tile installation, layout is typically started:

Accepted Answer

From the center of the wall horizontally, one course above the floor

Answer

Wall tile layout begins at a horizontal center line one full tile course above the floor to ensure balanced cuts at top and bottom.

(CTI) Certified Tile Installer Practice Test

(CTI) Certified Tile Installer Practice Test

CTI Tile Layout & Design 3