This used to be very common for machine shops to have wood floors, I found an article detailing it with some pictures. I worked in a couple shops that had wood floors, they were nothing to look at, it was an industrial setting after all. https://web.pa.msu.edu/services/machine-shop/shopfloor.htm

At Amazon in the new Day 1 building their main staircase to the lobby is built from wood ends and it is done very nicely. It looks great. There's probably pictures online of that.

edit, I found one picture from a geekwire article. Unfortunately you can't see the grain, the picture is from a far. https://cdn.geekwire.com/wp-content/uploads/2016/11/20161107...