34" to the top is standard, but in my dad's shop, we made one bench a few inches higher, so you aren't bending over so much. It's good for chopsaw and layout work. It's amazing how a few inches can save your back.
P.S. My concrete guy is coming back tomorrow to finish the ramp and the pad outside the man door. I got 3 walls up and my nail gun trigger valve sprung a leak. Got to go pick up a $30 trigger valve assembly because of a .10 cent urethane seal. :mad: