A lift truck, in particular for stacking boats, comprises a self-propelled main frame with wheels which supports at its rear end a pivotable telescopic boom pivotably supporting a lift assembly made of lift forks bound to a telescopic frame. The truck has an operator cab which can be transversally shifted and lifted, longitudinally extensible stabilizers and wheels which can be independently steered up to 90°. The truck of the invention has a better loading capacity and it allows stacking boats in very narrow storage facilities and it is not bulky, lighter and more versatile with regard to trucks of the background art.