In this paper, we address the proper treatment of post-peninitial primary stress in Kashaya (Oswalt 1961, 1988). In the default Kashaya pattern, primary stress appears on the third syllable, and alternating secondary stresses appear on subsequent syllables. While previous analyses (Buckley 1994, 2009) employ initial extrametricality to produce the post-peninitial stress—designating the initial syllable as extrametrical and then constructing iambs from left to right—we argue that the evidence favors an approach based on a trisyllabic stress window: primary stress is oriented toward the word's right edge but cannot move further to the right than the third syllable. We demonstrate that the general approach to stress windows provided by Relation Specific Alignment constraints (Hyde 2008, 2011) forms the basis for a successful account of the Kashaya pattern and that it does so while avoiding the well-known problems associated with initial extrametricality.