in which style....in which speed....? When 10 people doing bent over barbell rows, they will be doing it in 7-8 different ways...
the more upright i stand, the more momentum/speed i use the heavier are they weights which can be used.
i like to do the t-Bar rows lying on a support bench.....i did 27 reps with 155 kg....and 14 with 180 kg last time (few weeks ago)