Make Free-Standing Pull-Up Bar from 2x4's

I've wanted a freestanding pull-up unit for the garage for a while. I've used a door-mounted bar for 2-1/2 years, so I decided to make one finally. There a lot of plans on the internet, but nothing worked for my situation. I'll post pictures, then tell you what I did and what I would do differently.

What I used:

2-7 ft. 2x4's
6-22 inch 2x4's
1-38 inch 2x4
1-36 inch long 3/4 inch black pipe
2-3/4 black pipe flanges
8 #14 1 inch wood screws (for flanges)
A lot of 2-1/2 inch wood screws

(It cost me about $34)

What I would do differently:

• I would screw 2 7 foot 2x4's together for each side of the pull-up bar. They are stable, but I would make them more solid so I could feel better about kipping for muscle-ups.
• I would make the support legs longer (36 inches). It won't tip on dead hang pull-ups but kipping for muscle-ups will (that's where the sandbags come in).
• I would use fatter pipe--1 inch or 1-1/2 inch.

What's on the bar?

• Suspension Straps I made for rows, dips, and push-ups.
• Thick grips (made of foam)
• Towels-for towel pull-ups

Have you made a bar? Share a link below.