As critical nodes for global commodity flows, warehouses are an important example of segmented labour regimes which partition workers into groups with different conditions of security or its opposite, precarity. An emerging literature on warehouse work has tended to place segmentation in the context of managerial despotism based upon low wages, high labour turnover and job insecurity. However, the literature has, thus far, tended to pay comparatively less attention to workers’ collective resistance and its relationship to intra-labour divisions reproduced through segmentation. In refocusing attention to this problem, this article addresses the theoretical status of intra-labour groups, the nature of horizontal worker-to-worker relations, and their interaction with workers’ social identities and vertical capital–labour relations. It argues that the Gramscian concept of articulation provides the most promising frame for understanding these networked relations and for addressing how the politics of segmentation can be challenged by building common cause among divided workers.