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- 1). Decide which wall you want the bullnose to be on. Generally, you should choose the most visible wall. Install all the full field tiles that will fit on the other wall (the one that won't have bullnose on it), leaving space along the edge of the corner for partial tiles. Let the field tiles set. Don't grout the tiles.
- 2). Measure the space between the edges of the field tiles and the outside edge of the corner. Subtract twice the width of your grout lines. (Example: If your grout lines are 1/8 inch, subtract 1/4 inch.) Cut regular field tiles at that width.
- 3). Set the cut tiles by spreading thinset mortar on the backs of them and pressing them in place along the edge. The finished sides of the tiles should face the field tiles and be properly spaced from them. The cut edges of the tiles should approach the edge of the corner, but not quite reach it, stopping short by the width of a grout line. (If the grout lines are 1/8 inch, the cut side of the tile should stop 1/8 inch before the edge of the corner.)
- 4). Mortar and set your bullnose tiles on the other side of the corner. Set them so the finished bullnose side extends out over the edge of the corner. The edge of the bullnose should line up with the surface of the cut tile on the other side of the corner. There should be a space--the width of a grout line--between the cut tile and the bullnose.
- 5). Tile the rest of the wall that has the bullnose on it, starting at the middle of the wall and cutting the tiles alongside the bullnose as needed. The walls are now ready for grouting.
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