Straight Bars Dips - Ideas for at home parallel bars that can handle this exercise?

[Zach Nielsen]

I have already build an attached to the wall dip station and stall bars as well but seem to be st a loss for how to build parallel bars that could handle the weight of all the different dip variations of foundation 2. Anyone have any ideas?  I am doing all my workouts in my basement with a 7.5 foot ceiling. Thanks!