4. Next, apply adhesive to the wall with a trowel (figure A) and attach the backerboards to the walls with galvanized screws. Cover all seams with fiberglass joint tape and apply a coat of joint compound with a joint knife. After allowing the compound to dry, the backerboard is now firmly in place (figure B).5. You are ready to apply the ceramic tiles. Keep in mind that you want to use full tiles where they are most visible and cut tiles where they are least visible. Use a tile stick to lay out a row of tiles on the floor, using plastic spacers (figure C). Be sure to include any pattern or accent tiles you'll be using. With a pencil, mark the tile and grout spacing.
6. Next, measure for the center point on the wall. This will be the starting point. Using a level, draw a vertical line though the center point. Use the tile stick to transfer the horizontal and vertical tile placements around the tub, working from the vertical line (figure D). When done, this will reveal a checkerboard pattern that shows the tile placements and what tile cuts you will need.
7. With a trowel, scoop adhesive and spread out a small section on the wall (in an upwards combing motion). Set the first tile to the wall with a twisting motion. Use spacers inserted in the joints to maintain even grout lines. Measure your cuts and cut tiles with a wet saw when necessary. Use bullnose tiles with rounded edges for the trim (figure E).
8. When all tiles are placed, ensure that the tile is nicely seated by tapping the tiles with a 2x4 wood block wrapped in towel.