4 months minimum I'd say. Being a roofer, it was about that long before I was allowed to climb again. I then fell 14' the 1st. day back at work! Didn't re-break the chest again, but the cumadin caused significant bruising to appear. Mine was open heart surgery for a rare tumor inside the heart.
You'll know you're healing, but not healed, when you can laugh, sneeze, cough, etc. without wincing. Even bigger than shooting is upper body exertion which can really tear you apart. If taht happens, it can't be fixed
. I met many others in the heart unit at the VA that did not heed the warnings about that!