When forming the ropes, roll each one to about half the length you want, then set it aside while you roll the rest. By the time you get back to the first rope, it will have rested enough to roll further.
A 3-foot long rope will make a pretzel approximately 8-inches in diameter. Plan on using one baking sheet for every two pretzels.
Reynolds® parchment can be used for easier cleanup/removal from the pan.