2. Secondly, measure the size of the doorpost with a measuring tool and cut the tiles as needed. Make sure that the size of the tile is suitable for the surface of the column, and leave appropriate gaps for pasting.

3. Then use tile glue or tile glue to evenly coat a layer of glue on the surface of the doorpost. Place the tile on the adhesive, press it gently and rotate it slightly to ensure that the tile fits closely with the surface of the column.

4. Then, leave a proper gap between the tiles, so as to fill the caulking agent later. Use ceramic tile gasket or plastic card to keep the gap consistent.

5. Finally, after the adhesive is dried, use a wet cloth or sponge to clean the excess adhesive on the surface of the tile. Fill the gaps between tiles with caulking agent, and scrape the caulking agent with caulking knife or sponge.