A 20-minute overview of the Revit Wall Framing Extension, which is available in the Revit Subscription Advantage Pack.

The 2014 version seems to be available at Autodesk Exchange: http://apps.exchange.autodesk.com/RVT/en/Detail/Index?id=appstore.exchange.autodesk.com%3atimberframingforautodeskrevit2014%3aen