1st a definition. Most people know what a set of parallel bars is. Paralett bars are a diminutive form of parallel bars. They can be parallel bars as low as a few inches off the ground. I made mine 31 inches high. There are at least 25 exercises that can be done on a non full size set of bars. I had wanted to put items like a chin up bar and parallel bars in the backyard. So, I researched ready mades on Amazon.com and youtube. Gosh, they were expensive! So, I researched do-it yourself items. Many "plans" reflected poor execution and inferior materials. And, I am just not capable of digging deep holes and setting 4x4s by myself. So, I found a guy on youtube who made a set of diminutive parallel bars from PCV irrigation pipe. Then I read the criticisms and the limitations of his result. I knew that the concept was not original, so I went on Amazon.com and found the best selling commercial unit. I give this background so that when you want to make your own equipment, you have some places to go. I already knew that the commercial PCV unit would have a weight limitation and be designed to the average guy. Nonetheless, I wrote down the measurements and then went for my materials. I chose 1 1/4 inch galvanized pipe material. I am a bit taller than the average, so I could not use precut and threaded pipe for the height and the length. I had it cut 31 inches instead of the 28.5 inches used in the commercial pvc tubing unit. Other than driving and buying the material, the only required effort was to screw the pipe units together. Yes, I spent some time. However, I constructed a workout device for me - and not the average JOe. Estimated savings - about 60% or more. I do go to the YMCA everyday. Based upon the driving time/car expense (and I already avoid the $2 a day parking fee) and the monthly dues, I will have recouped my investment in about 3 months and saved 45 minutes a day in travel time.