The book summarizes the experience in the design, construction and operation of metal docks, as well as information on theoretical research in the field of ship theory and the strength of docks over the past 15 years. Analysis of the weight characteristics of the docks, coefficients for determining the main elements of the designed dock in the first approximation, as well as the formulas derived by the authors to determine the most advantageous in terms of strength of the side height, the moment the dock floats up during the longitudinal descent, etc. are given. A special chapter is devoted to the method of drawing up tasks for the design of docks. The book is intended for engineers and technicians working in the design, construction and operation of floating docks, and can also be useful for students of shipbuilding universities, faculties and students of technical schools.