The goal of this paper is to advance the measurement and theory of work-nonwork boundary management styles. Boundary management styles are defined as the approaches individuals use to demarcate boundaries and attend to work and family and other nonwork roles, given identity centralities and perceived boundary control. We argue that research should be augmented with a person-centered approach, which examines how psychological measures are integrated into configurations. Integrating role and boundary theories, we identify three main characteristics of work-nonwork boundary management: (1) cross-role interruption behaviors (work to nonwork, and nonwork to work interruptions); (2) identity centrality of work and family roles, and (3) perceived control of boundaries. Using a variable-centered approach, we refined and validated these measures to create an assessment (Work-Life Indicator) that captured boundary management profiles. The profiles reflect how interruption behaviors, identity centralities, and boundary control interrelate to cluster into profiles, a set of psychological characteristics organized into a pattern of work-nonwork boundary functioning. We identify boundary management profiles and examine their relationships to key work-family outcomes. Regardless of the level and direction of interruption behaviors and centrality of work-family identities, we found that low control boundary management profiles (reactors, job warriors) tended to experience more negative work and family outcomes than did high control profiles (fusion lovers, dividers, family guardians, eclectics). (Contains 7 tables.)