The transportation of various cargoes, including equipment, machinery, modules, vessels and even steel products, on the upper open decks of seagoing ships presents unique challenges, especially in adverse weather conditions. Improper stowage and securing of deck cargoes are the main causes of a significant number of accidents at sea, resulting not only in financial losses but, most importantly, in tragic loss of life, both at sea and during port operations. This underscores the urgent need to improve methods and practices related to cargo stowage and securing, which remains one of the most risky aspects of maritime operations. This paper presents a comprehensive research initiative that addresses the complex aspects of planning, stowage and maritime transportation of deck cargo. It examines the key determinants and factors affecting the safety of the transportation process and provides a thorough analysis of the challenges encountered during deck cargo operations. The findings of the study enable the implementation of robust safety measures to safeguard property and lives in this vital sector of maritime logistics.