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How to cut a ceramic tile
Use a pencil and a square to measure and mark your tiles.
A square is a special ruler shaped like a right angle. Align the horizontal edge of the square with the bottom edge of the tile.

Select from the following. * Then, divide your ruler into four equal parts-one long one, four short ones, and four long ones. A tile on sheet stone will be worth about 5 dollars if it's used for something other than a table set-piece.. * The square should lie flush against the tile and overlap the diagonal edge of the square 3/4 of the way from the bottom. Measure 5/8 inch (6.35 mm) from the square.. * Use the vertical edge of the square and a pencil to draw your guideline. This method is better suited to small jobs where you just need to cut a few tiles.. * Block whatever is on the zero mark line in your measurement, by straight cutting perpendicular to the diagonal edge of the square. Measure 2 inches (5.1 cm) to the edge you marked in your measurements..
Use the vertical edge of the square and a pencil to draw your guideline. This method is better suited to small jobs where you just need to cut a few tiles.