Battle Rope Workout For Beginners, For most people and most, uses the 1.5″ thick rope helps the best option for bodybuilding. This size rope presents the most adaptability and can be used by nearly anyone. The grip of even trained athletes will be challenged at this thickness, but beginners can still use it as well. We highly recommend 1.5″ thick ropes and they are by far the most popular size. Of course, if you are looking to really push your grip strength or your goals are strongman like strength, then we would suggest going up to a 2″ thick rope. This size rope is not for the percentage user, but it will make you strong if you can tame it!.