What weight capacity do I actually need?

Most quality bars are rated 300–500 lbs, which is well above body weight for nearly everyone. The number matters more as a proxy for build quality and for those adding a weighted vest or doing kipping/dynamic work. Heavy-duty wall mounts here advertise 500 lbs; doorway bars typically list 300–440 lbs, though community reviewers note advertised capacities can be optimistic for friction-style designs.