The aim of this paper was to study Swedish secondary school teachers’ thoughts on and experiences of support measures that do not fall under the categories defined in the Swedish Education Act. The existing defined support measures are constructed as adaptations forindividual students and therefore this study looked at support measures implemented on a group basis. Special focus was given to studying what type of support measures the teachers saw themselves implement, the reasoning behind their implementation, how they evaluated them and what conditions the teachers thought affected their ability to implement and evaluate them. Research data was gathered by conducting eight semi-structured interviews. Findings indicate a trend towards the teachers implementing instructional adaptations for entire student groups. The support measures tended to be implemented to meet the needs of several students in each class. The interviewed teachers’ evaluation of their support measures was for the most part undocumented, individual and informal, rarely employing their colleagues’ input. Lastly, the teachers generally considered time constraints to impact their work with adaptations negatively, and the support of colleagues to support them positively.