Mike Donelly sent me a message via e-mail..."Travis:
Thanks for you post on the home gym.
I see you used a flange, 12" nipple, and 90 degree elbow to hang your pullup
bar. What is the clearance from the top of the bar to the bottom of the 2X6.
I am mounting my own bar this weekend and don't know if I should use the 10" or
12" nipple. It depends on how much additional distance the flange and the elbow
Mike Donnelly "
Mike, I don't have your e-mail address so here's the answer. There's a little less than 13 inches between the 2x6 and the to of the bar. Personally I think the 10" nipple would be a little too short. the 12" is perfect.