The dimensions of these black walnut chopping boards/cutting boards were inspired by the Fibonacci sequence, where each number is the sum of the two preceding ones (0, 1, 1, 2, 3, 5, 8, 13, 21, 34...). The Fibonacci numbers also have a very close relationship with the Golden Ratio (a+b is to a as a is to b), in which the long side of a rectangle is 1.618 times the length of the short side. The Golden Ratio is also known as the Divine Proportion, and has been used in art and architecture for centuries.
Our large Fibonacci boards are 233mm x 377mm x 34mm high. The bevel is cut at 34 degrees, also a Fibonacci number. With these dimensions and the information above, you should be able to work out the dimensions of the two smaller boards by yourself... (okay, the medium is 233 x 233; the small is 144 x 233).
If you would like to have the board engraved and filled with a white resin, you can leave instructions for the engraving in the 'instructions for seller' box. Please feel free to follow up with an email if you'd like to discuss the engraving in more detail.