If you work by finding the tile starting point, the left and right frames have the same length, and the top and bottom frames have the same length, making the whole center aligned.First, enter the width and height of the surface to be constructed.Next, input the specifications of the tile to be installed and click Calculate.The construction area [㎡, pyeong] and the number of material boxes and the interval length according to the column number from the starting point appear.It would be good to use it as an attached file after capturing an image.