The unique contextual attributes of the correctional environment and the frustrations, deprivations and challenges associated with it impact adjustment to incarceration. Offenders who cannot adjust to the correctional environment may experience behavioural and psychological challenges, including institutional misconduct, violence, aggression, withdrawal, anger, hostility, anxiety and depression. It is imperative to identify which variables are possible predictors of correctional adjustment among male incarcerated offenders in a private, maximum-security correctional centre in South Africa. In this quantitative study, 418 male maximum-security offenders were sampled. Questionnaire data were collected, and the results indicated that the combination of some variables (Friends, Avoidance and Problem-solving) predicted Internal Adjustment and (Anger, Friends and Verbal Aggression) predicted External Adjustment of the offenders. The results from this study could aid in the development of future programmes that assist offenders with adjusting to the correctional environment.