Here is the pattern file, and you will notice that at the end, instead of a blank line, one can put a line starting with a * and then one can put a credit for the creator. One cannot have a completely random hatch pattern, but if the repeat spacing is large enough, the eye can get fooled. It is based on a plank width of 150 drawing units, and lengths to suit your picture. I had a quiet afternoon so I wrote a pattern file for a Wood Flooring Hatch.