I just want to know if stalhrim armor is heavy or light armor so i know how to build my charcter. Any response will be appreciated

You can craft both, though they look the same. (Or thereabouts. Maybe the shoulders are a bit thicker on the heavy set, and the helmets are slightly different).

Deathbrand, a dual-wielding multi enchanted set of Stahlrim is light.
Otherwise you can craft your own heavy set.

Light Stahlrim looks much better fyi

Other than the helmet, I barely see a difference >_>

Heavy Stahlrim makes you look chubs with thin legs while light Stahlrim actually fits well together as a set.