Title just about says it all. I realize people's heights vary. The question is geared towards what height do you want your sawhorses at?
Knee high, waist high, chest high? (or somewhere in between).
There is no revenge so complete as forgiveness. -- Josh Billings
Time is the coin of your life. It is the only coin you have, and only you can determine how it will be spent. Be careful lest you let other people spend it for you.
-- Carl Sandburg