How to stack the squares of 14 for a four-foot square calligraphy work?

I don't know what font you wrote. If you write cursive script, the change will be even greater. The function of the grid is not obvious, just make sure it is full. If you write seal script and regular script, the general stacking method is shown in the figure. Because the location of the signature is small, you can write two lines. If the number of words inscribed is very large, you can also start a new line, but then the line spacing will be reduced accordingly and the word spacing will be larger.