What stacks with Ironskin Chant?

[Crann]

I was under the impression that Ironskin Chant was a passive DR, thus it does not stack with other Passive DR's such as Barb/WF DR, Stoneskin, Adamantine armor, etc. Heard recently that it does stack with Stoneskin and Barb DR and needed to find out what the case was. What does Ironskin chant stack with, if anything?

[Visty]

it stacks with shieldblocking, thats it

you are right, its passive dr and doesnt stack with any other passive dr