Figure 7-25.-Steps used for squaring a wall.Figure 7-26.-Layout for installing ceramic wall tile.this line level across the entire width of the room. Refer4. Draw vertical lines B and C perpendicular to lineto the bathroom wall example in figure 7-25 as you studyA (fig. 7-25). Apply tiles to the squared-off areathe following steps:first. Then cut and apply fractional tiles.1.2.3.Find the low point of the tub.Another method for figuring fractional tiles (edges)Measure up the height of one full tile at the lowis to employ the “half-tile rule.” (The stick method ispoint. Draw a horizontal line A. It must be level.good for short walls, but the half-tile rule is needed forUse a tile-measuring stick (fig. 7-26) tolong walls.) Take the number of full-size tiles requireddetermine the position of full-width tiles in suchfor one course, multiply this by the tile size, subtract thisaway that fractional tiles at each comer or edgeanswer from the wall length in inches, add one full tileare equal.size and divide by 2. The result is the size of end tiles.7-23