Abstract: A deposit container useful for many kinds of purposes such as a roof box for a motor car, a ski box, a deposit container for boats, buses, caravans, motor-houses and snow sleighs which is mountable and dismountable. The deposit container includes several small units, namely four box parts which include two identical or nearly identical lid box halves and two identical or nearly identical bottom box halves. These halves can quickly and easily be interconnected to form a lid box and a bottom box, respectively. The deposit container has standard fittings for hinges and locks so that the deposit container can be easily opened and/or secured in a closed position. The lid box halves and the bottom box halves are formed so that when the box is dismounted, the parts can be stacked into each other and stored in a compact state.