/diy/ - Do It Yourself

>>322712 (OP)
>4 foot deep hole

Unless you live in Alaska or you'll be using it as a laundry line tie, you will only need a hole 2 feet with cement. Are you going to be putting 500lbs of weight on it then swinging it?

For chinups/pullups the design in this image is all you need with pipe and cement.

>>322716
Why on Earth would you need that much support? I'm sure the OP isn't 2,000lbs.

>>322748
1 inch is good enough for the cross bar. In fact I use 3/4" x 36" pipe on mine. I agree that one wider than 4 feet would need 1". The verticals on the other hand should be 2" pipe, not 3-4".