I had to comment here on this lively topic
well my findings are like alot of others on this site, saw horses have changed somewhat over the years height wise. From about 1900 on the saw horse height became higher to acomodate power tools ie; not as much hand sawing and more skill sawing happening, also not as much hand mortising and chiselling. The taller horse meant less wear and tear on the back.
Now of course with the return to a more historic role for the (work) horse the height has had to come back down, and it usually will end up at a height suitable for the person's own height. I am fairly short so my horses to do timber work are lower that the majority wight be,
I also like a fairly heavy built horse using 4 by 4 pine all around for the construction and no overhang at the ends
NH
