There are a number of commercial designs that mimic the general design of this chinup bar - the benefit of this design is that it is incredibly sturdy, low cost, and adaptable to many door frame designs. This design is intended to work with very deep frames, as commonly found in older buildings. These deep frames are often incompatible with the commercial chin-up bars.
We will be building out of 1" Schedule 40 Steel Pipe (actual outer diameter is closer to 1.315"), and EasyFit structural pipe fittings. There are a number of structural pipe fittings available out there, all of which would be acceptable, but EasyFit is about the cheapest, and still high quality.
Refer to the attached Sketchup file for details as you work through the design!
Some design goals:
- Adaptable to many door frames
- Multiple grips for different workouts
- Enough extension away from the doorframe that you don't bonk yourself while lifting
- Solid grip for the hands