Hallo Sergey my friend alias @bibigonHi guys.
There should be no questions with the inch system. There are always conversion tables from inches to millimeters. You can specify dimensions in inches and I will make them. Of course, when manufacturing, I will recalculate these dimensions in millimeters. Just because it’s easier for me to work. I have been using the metric system since childhood and it is as difficult for me to switch to inch sizes as it is for you to change to metric sizes.
The length of the pear blanks is 500 mm. Converted to inches, this would be 19.685 inches. I am specifying a length of 20 inches. I think you can forgive a small error. But I can withstand the width and thickness exactly.
Hornbeam blank length 400 mm (~ 16 ")
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