How to do more pull ups

Stud Bars are the best engineered and simplest design pull up bars available for ceiling mount pull up bar or wall mounted pull up bar applications. Stud Bar is a versatile pull up bar you can mount anywhere for commercial and CrossFit gyms, schools, universities,home gyms, military bases, garages or any location in need of the highest quality, indestructible welded steel chin up bars. If your pull up bar is weak what will it do for you?