In this master thesis, based on the example of a typical hull block offered by shipyard production portfolio, the deformations of the structure during vertical transport will be analysed and the temporary reinforcements and stiffening of the hull structure will be optimised. The aim of this work is to analyse and present the possibilities of optimising sub-processes of the ship's hull assembly with the use of larger capacity cranes to reduce the scope of equipping superstructures after launch, for instance on the equipment shore, with significant cost and time savings, described in more detail in the introductory part. The thesis consists of seven chapters including the first introductory one. In the first chapter, the accent will be set on the importance of overlapping of the shipbuilding phases related to the agile planning of various activities within different shipbuilding processes and sub-processes. Furthermore, the first chapter focuses on enlarging hull sections into hull blocks to accelerate or improve the hull construction sub-processes on the slipway. The second chapter describes the characteristics of construction sites, with reference to the technical characteristics and features of the crane, as well as their effectiveness in activities related to the vertical transport of blocks with examples of some domestic shipyards. The second chapter carries on with presenting a general overview of cranes as one of the key factors in the shipbuilding process. The division of the hull into groups and sections, and the basics of the characteristic block with its structure and geometric features are presented in the third chapter. The fourth chapter highlights in more details the characteristic block of the hull, its sections and how it is enlarged. The pre-assembly phase of the characteristic block and the materials used for the temporary supports are also explained. The fourth chapter is rounded off with an overview and analysis of the time required for the assembly and disassembly of the measure. Chapter five analyses a block modelling with the finite elements and portrays structural analysis of superstructure blocks. Due to the problems in the transport of blocks, given the fact that an inadequate transport can cause significant deformations, which require a larger number of working hours to eliminate, the fifth chapter further elaborates on the blocks’ lifting and possible examples of deformations of structures. The sixth chapter offers a comparison of the time required to assemble the hull during construction with blocks and sections. The results of modelling and analysis, the importance of applying the structural analysis, possible problems that may arise, as well as the recommendations are highlighted in the last chapter.